Ornamental and Lawn Pest Control (For Homeowners)

February 2017


This fact sheet describes some common arthropod pest problems encountered on various ornamentals and turfgrass lawns in Oklahoma. If arthropod pest problems arise that are not covered here, consult your OSU County Extension Office for assistance.

Many arthropod pest problems are solved through natural control factors such as weather, disease, parasites, and predators. When nature either does not solve the pest problem or is slow to act, other controls may be warranted. Chemical pesticides often provide the quickest and most dependable control, and in many instances, there may be no other alternatives.

Pesticides are chemicals of plant, animal, or synthetic origin manufactured to kill pests – insects, weeds, plant disease organisms, and rodents. Materials poisonous to one organism are usually poisonous to other organisms if the dosage is large enough.  Pesticides can be applied safely when a few basic rules are followed and common sense is used. Refer to OSU Extension Fact Sheets EPP-7450, EPP-7453 and EPP-7457 for more information on pesticide safety. For information on insect control in the vegetable garden, refer to OSU Extension Fact Sheet EPP-7313.

Note: Whenever possible, buy and grow pest resistant plants such as Oklahoma Proven selections (http://oklahomaproven.okstate.edu) or other recommended varieties. By doing so, the need for pest control measures can be greatly reduced.

Bagworm. Photo courtesy Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org

 

Eastern Tent Caterpillar. Photo courtesy John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org

 

Two-spotted Spider Mite. Photo courtesy Frank Peairs, Colorado State University, Bugwood.org

 

Two-spotted Spider Mite Webbing. Photo courtesy Whitney Cranshaw, Colorado State University, Bugwood.org

 

Elm Leaf Beetle (larvae). Photo courtesy Whitney Cranshaw, Colorado State University, Bugwood.org

 

May-June Beetle. Photo courtesy Steven Katovich, USDA Forest Service, Bugwood.org

 

Clover Mite. Photo courtesy Rayanne Lehman, Pennsylvania Department of Agriculture, Bugwood.org

 

Pine Tip Moth (adult). Photo courtesy James A. Richmond, USDA Forest Service, Bugwood.org

 

Pine Tip Moth Damage. Photo courtesy Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org

 

Poplar Borer. Photo courtesy James Solomon, USDA Forest Service, Bugwood.org

 

Elm Leaf Beetle. Photo courtesy Clemson University – USDA Cooperative Extension Slide Series, Bugwood.org

 

May-June Beetle Larva. Photo courtesy Steven Katovich, USDA Forest Service, Bugwood.org

 

Pine Tip Moth (larvae). Photo courtesy Darrell Ross, Oregon State University, Bugwood.org

 

Wooly Maple Aphids. Photo courtesy Eric Rebek, Oklahoma State University, Bugwood.org

 

Harvester Ants. Photo courtesy Whitney Cranshaw, Colorado State University, Bugwood.org

 

Spring Cankerworm. Photo courtesy James B. Hanson, USDA Forest Service, Bugwood.org

 

Candystriped Leafhopper. Photo courtesy David Cappaert, Michigan State University, Bugwood.org

 

Euonymus Scale. Photo courtesy Clemson University – USDA Cooperative Extension Slide Series, Bugwood.org

 

Fall Armyworm. Photo courtesy Clemson University – USDA Cooperative Extension Slide Series, Bugwood.org

 

Cicada Killer Wasp. Photo courtesy Nancy Hinkle, University of Georgia, Bugwood.org

 

Sod Webworm. Photo courtesy Purdue University, Department of Entomology

 

Mealybugs. Photo courtesy United States National Collection of Scale Insects Photographs Archive, USDA Agricultural Research Service, Bugwood.org

 

American Dog Ticks. Photo courtesy Mat Pound, USDA Agricultural Research Service, Bugwood.org

 

Flea. Photo courtesy Pest and Diseases Image Library, Bugwood.org

 

Sycamore Lace Bugs. Photo courtesy USDA Forest Service – Northeastern Area Archive, USDA Forest Service, Bugwood.org

 

 

 

 

PESTS OF TREES, SHRUBS, AND FLOWERS     
Pest, Time Most Prevalent, & Other InformationPesticide Common NamePesticide Trade NamePesticide ClassComments
APHIDSAcetamipridOrtho Max Flower, Fruit and Vegetable Insect Killer RTU4ASystemic insecticide. Apply as a foliar spray.
Measure 1/8 to 1/5 inch long.CarbarylGardenTech Sevin
Concentrate Bug Killer
1ASee note at end of section on Sevin.
Pear-shaped, soft-bodied, sucking insects. Active all growing season.
DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide 4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Aphids secrete honeydew (sticky, sugar-like material), which may attract ants and flies, and provide growing media for sooty mold.
Aphids generally attack the tenderterminals and leaves. Leaves may twist and curl and become distorted.Insecticidal Soap Garden Safe Brand Insecticidal Soap Insect KillerNSCarefully read label of insecticidal soap products for phytotoxicity statements.
Small infestations can often be washed off plants with strong water pressure.ImidaclopridBayer Advanced 12- Month Tree & Shrub Insect Control or
Ferti-Lome Tree & Shrub Systemic Insect Drench
4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
Mineral OilBonide All Seasons
Horticultural & Dormant Spray Oil Concentrate
HODo not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
Neem Oil Garden Safe Brand Neem
Oil Extract Concentrate or
Bonide Neem Oil Fungicide/Miticide/ Insecticide RTU
UNCarefully read label of neem oil products for phytoxicity statements.
BAGWORMSBacillus thuringiensis (B.t.) subsp. kurstaki Thuricide or Dipel11AApply B.t. early while caterpillars are still small (e.g., late May or early June). Less effective for large larvae.
Measure 1-2 inches long (bagworm case).
Active May through September.CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
Common caterpillar pests on cedars, arborvitae, and sometimes feed on bald cypress, elms, pines, willows, maples, sycamores, and other trees.
MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
Small infestations can be removed by hand in winter before larvae emerge in May, but be sure to destroy all bags.SpinosadFerti-Lome Borer, Bagworm, Tent Caterpillar & Leafminer Spray5Apply spinosad early while caterpillars are still small (e.g., late May or early June). Less effective for large larvae.
BORERSDinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
FLATHEADED BORERS
ROUNDHEADED BORERS
SHOTHOLE BORERS
Measure 1/2 to 1 3/4 inches long.
Active spring through fall.Imidacloprid Bayer Advanced 12 Month Tree & Shrub Insect Control or 4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or
See OSU Fact Sheet EPP-7326 for additional information about woodborers.Ferti-Lome Tree & Shrub Systemic Insect Drenchheight of shrub. BEE CAUTION: Do not apply to plants in bloom.
Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
ASH/LILAC BORERPermethrinHi-Yield Indoor/Outdoor Broad Use Insecticide3ASpray trunk when adult moths are active to target egg-laying adults and newly emerging larvae. Monitor adult activity with pheromone traps.
Measure up to 1 inch long. Adult moths are wasp mimics. Active spring through fall.
As a preventative measure, it is helpful to ensure health of trees with proper watering and fertilizer.
IRIS BORERSteinernema
carpocapsae
EcomaskBLOBeneficial nematodes are tiny roundworms that attack a variety of insect pests. Levels of control vary, but nematodes function best at soil temperatures between 60° and 93°F.
Larvae are pink caterpillars measuring up to 2 inches long. Active late April through August.Piperonyl Butoxide +
Pyrethrins
GardenTech Worry Free
Brand Concentrate
NS + 3A
Larvae tunnel within leaves, stems, and rhizomes (roots).SpinosadFerti-Lome Borer, Bagworm, Tent Caterpillar & Leafminer Spray 5AApply spray to upper and lower leaf surfaces when eggs hatch, corresponding to new growth measuring 4 to 6 inches. A second spray may be needed 10 to 14 days later.
BARK BEETLES (in pines)ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or
Ferti-Lome Tree & Shrub Systemic Insect Drench
4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Adults measure 1/20 to 1/5 inch long.
Small, cylindrical, brown to black beetles that tunnel and create feeding galleries below bark surface.Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Active spring through fall.Piperonyl Butoxide + PyrethrinsGardenTech Worry Free Brand ConcentrateNS + 3A
ELM BARK BEETLES
See EPP-7602: Dutch Elm Disease for information about elm bark beetle vectors.Only restricted use pesticides are currently available for effective control of elm bark beetle and the disease it transmits, Dutch Elm Disease. Consult a certified arborist or other tree care professional for control options.
BOXELDER BUGS and RED-SHOULDERED BUGSCarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
Measure 1/2 to 1 3/4 inches long.CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
Nuisance household pest in the fall. Feed on seeds of boxelder, golden raintree, and soapberry, but don’t injure trees. Avoid planting host trees in close proximity to house.
MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
Piperonyl Butoxide + PyrethrinsGardenTech Worry Free Brand ConcentrateNS + 3A
Plug openings around windows and doors, and caulk small openings that can serve as points of entry.
Target young nymphs in early summer for best control.
CATERPILLARSAcetamipridOrtho Max Flower, Fruit and Vegetable 4ASystemic insecticide. Apply as a foliar spray.
Insect Killer RTU
Includes cankerworms, cutworms, webworms, tent caterpillars, and leafrollers/leaftiers.
Bacillus thuringiensis (B.t.) subsp. kurstakiBonide Thuricide Bt or Ferti-Lome Dipel Dust11AApply B.t. early while caterpillars are still small. Less effective for large larvae. B.t. stops larvae from feeding, but has a delayed killing action. B.t. does NOT control sawflies.
Measure 1/2 to 2 inches long.
Active spring through fall.CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
Larvae feed on foliage. Some species roll and tie leaves with silk and some build webs or tents around foliage or in crotches of limbs.
CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
Esfenvalerate Ortho Bug-B-Gon Max Garden & Landscape Insect Killer 3A
Check label for specific caterpillar pests controlled by each product and use accordingly.
Insecticidal SoapGarden Safe Brand Insecticidal Soap Insect KillerNSCarefully read label of insecticidal soap products for phytotoxicity statements.
Lambda CyhalothrinBonide Caterpillar Killer3A
Malathion Gordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
Mineral OilBonide All Seasons Horticultural & Dormant Spray Oil ConcentrateHODo not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
Neem Oil Garden Safe Brand Neem Oil Extract Concentrate or Bonide Neem Oil Fungicide/Miticide/Insecticide RTU UNLabeled for leafrollers only. Carefully read label of neem oil products for phytoxicity statements.
SpinosadFerti-Lome Borer, Bagworm, Tent Caterpillar, & Leafminer Spray 5Apply spinosad early while caterpillars are still small. Less effective for large larvae.
ELM LEAF BEETLE, WILLOW LEAF BEETLE, and ELM CALLIGRAPHA BEETLE CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate 3A
Adults measure 1/8 to 1/4 inch long. Larvae measure 1/4 to 3/8 inch long.
DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
These leaf-feeding beetles are active late spring to late summer. Both adults and larvae feed on foliage, but larvae cause the most damage by skeletonizing the leaves.
ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or Ferti-Lome Tree & Shrub Systemic Insect Drench4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Mineral OilBonide All Seasons Dormant Spray Oil ConcentrateHOEffective against larvae. Do not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
SpinosadFerti-Lome Borer, Bagworm, Tent Caterpillar, & Leafminer Spray 5Apply when larvae are small and actively feeding.
FLEA BEETLESAcetamipridOrtho Max Flower, Fruit and Vegetable Insect Killer RTU 4ASystemic insecticide. Apply as a foliar spray.
Measure 1/16 to 1/8 inch long.
Carbaryl GardenTech Sevin Concentrate 1ASee note at end of section on Sevin.
Tiny, black beetles with enlarged hind legs designed for jumping.Bug Killer
CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
Active in summer, feeding on foliage of a wide variety of landscape plants.
Lambda CyhalothrinBonide Caterpillar Killer3A
GALLSCarbarylGardenTech Sevin Concentrate Bug Killer1ALabeled for gall-making wasps and midges only. See note at end of section on Sevin.
New growth forms during growing season.
Mineral OilBonide All Seasons Horticultural & Dormant Spray Oil ConcentrateHODo not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
See OSU Fact Sheet EPP-7168 for detailed information about plant galls.
Gall problems can be reduced by applying the chemicals listed in early spring (bud swell), then again at bud break, and again when leaves are half grown.
GRASSHOPPERSCyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
Measure 1-2 inches long.CypermethrinAmdro Quick Kill Lawn & Landscape 3A
Grasshoppers feed on foliage of numerous plants but prefer grasses.Insect Killer Concentrate
EsfenvalerateOrtho Bug-B-Gon Max Garden & Landscape Insect Killer3A
For more information, see OSU Fact Sheet EPP-7322: Grasshopper Control in Gardens and Landscapes.
Nosema locustaeNolo Bait or SemasporeMMicrosporidial pathogen of grasshoppers. Works best on small nymphs. Do not apply Nosema locustae in any manner that results in contact with fruits or vegetables.
JUNE (MAY) BEETLES and JAPANESE BEETLESAcetamipridOrtho Max Flower, Fruit and Vegetable Insect Killer RTU4ASystemic insecticide. Apply as a foliar spray. Labeled for Japanese beetle only.
Measure 1/2 to 3/4 inches long.CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
June beetles active at night April through September. Japanese beetles active during the day late June through July.
CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3ARecommended as a preventative treatment for Japanese beetle.
June beetles occasionally feed on foliage of American elm and other trees. Japanese beetles are serious pests, feeding on foliage, fruits, and flowers of many landscape plants.ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or Ferti-Lome Tree & Shrub Systemic Insect Drench 4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
LACE BUGSBifenthrinOrtho Bug B Gone Max Lawn and Garden Insect Killer Concentrate3A
Measure 1/8 inch long.
CarbarylGardenTech Sevin Concentrate Bug Killer1A See note at end of section on Sevin.
Tiny, mottled, brown to black and gray insects with long, lace-like wings. Suck sap from undersides of leaves causing them to become mottled with grey or brown spots.
Active spring through summer.CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
Common on sycamores, elms and some oaks, pyracantha, and occasionally azaleas.DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide 4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Small infestations can be washed off plants/foliage with water pressure (stream of water).strong ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control Ferti-Lome Tree & Shrub Systemic Insect Drench or 4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Insecticidal Soap Garden Safe Brand Insecticidal Soap Insect KillerNS Carefully read label of insecticidal soap products forphytotoxicity statements.
Mineral Oil Bonide All Seasons Horticultural & Dormant Oil ConcentrateHODo not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
LEAFHOPPERS and TREEHOPPERS AcetamipridOrtho Max Flower, Fruit and Vegetable Insect Killer RTU4ASystemic insecticide. Apply as a foliar spray.
Measure 1/8 to 1/4 inch long.CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
Leafhoppers and treehoppers are somewhat wedge-shaped insects that are drab to brightly colored. These sucking insects readily jump when disturbed. CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
Treehoppers often have extreme ornamentation just behind the head. DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Active during growing season.ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or Ferti-Lome Tree & Shrub Systemic Insect Drench 4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Feeding results in leaf discoloration, but rarely harmful to plant. Several leafhoppers are important vectors of leaf scorch diseases.
Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
LEAFMINERSAcetamipridOrtho Max Flower, Fruit and Vegetable Insect Killer RTU4ASystemic insecticide. Apply as a foliar spray.
Includes blotch, serpentine, and tentiform leafminers, so named for the shape of their tunnels.CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
Larvae measure 1/8 to 1/4 inch long.DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Leafminers are the tiny larvae of several moth, fly, and sawfly species that feed between the upper and lower leaf surfaces.ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or Ferti-Lome Tree & Shrub Systemic Insect Drench 4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Active spring through summer.
Seldom cause extensive damage. Prune and burn twigs or leaves when possible.Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
Mineral OilBonide All Seasons Horticultural & Dormant Spray Oil ConcentrateHOEffective against adults only. Do not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
SpinosadFerti-Lome Borer, Bagworm, Tent Caterpillar, & Leafminer Spray 5Thorough coverage of upper and lower leaf surfaces is essential for effective control.
MILLIPEDESCarbarylBayer Advanced Complete Insect Killer for Gardens RTU1A
Measure up to 1 inch long. Coil up when disturbed.CypermethrinAmdro Quick Kill Lawn & Landscape Insect Killer Concentrate3A
Active during growing season.PermethrinHi-Yield Indoor/Outdoor Broad Use Insecticide or Ferti-Lome Indoor/Outdoor Multi-purpose Insect Spray3A
Heavy mulch and continuous damp conditions favor build-up of millipedes. Apply spray to soil surface in beds and around plants.
MITESEsfenvalerateOrtho Bug-B-Gon Max Garden & Landscape Insect Killer3A
SPIDER MITES and CYCLAMEN MITES Insecticidal Soap Garden Safe Brand Insecticidal Soap Insect KillerNSCarefully read label of insecticidal soap products for phytotoxicity statements.
Measure 1/60 inch long.MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
Active spring to early fall; spider mites frequently become a severe problem in hot, dry weather. Mineral OilBonide All Seasons Horticultural & Dormant Spray Oil ConcentrateUNDo not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
Frequently, two or more applications at 7-day intervals will be needed to reduce mite populations. Mites can be difficult to control, thus consider alternating chemicals at the different treatment intervals.Neem OilGarden Safe Neem Oil Extract or Green Light Neem Concentrate HO Carefully read label of neem oil products for phytotoxicity statements.
PINE TIP MOTH (larvae)CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
Larvae measure 1/2 inch long.DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Active March to September.
Larvae bore into buds and twigs. Females emerge and lay eggs from late March through late May. Larvae must be controlled before they bore into tree.ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or Ferti-Lome Tree & Shrub Systemic Insect Drench 4A Use imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
For best protection with sprays, applications should be applied at about 20-day intervals from late March through the end of June.Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
For more information, see OSU Fact Sheet EPP-7645: Nantucket Pine Tip Moth.
PUSS CATERPILLAR/ IO MOTH and OTHER “STINGING CATERPILLARS”Bacillus thuringiensis (B.t.) subsp. kurstakiSafer Brand Garden Dust11AThoroughly apply dust to cover all plant surfaces.
Active late summer and fall. CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
Tiny stinging spines are present beneath the fluffy, long, flowing body hair. For best results, spray foliage thoroughly.
Piperonyl Butoxide + PyrethrinsGardenTech Worry Free Brand ConcentrateNS + 3A
SCALES and MEALYBUGSAcetamipridOrtho Max Flower, Fruit and Vegetable Insect Killer RTU 4ASystemic insecticide. Apply as a foliar spray.
Includes brown elm scale, euonymus scale, and longtailed mealybug.CarbarylGardenTech Sevin Concentrate Bug Killer1AEffective against scale crawlers (nymphs) only. See note at end of section on Sevin.
Active during growing season.DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Soft scales and mealybugs produce honeydew while armored scales do not.
Some insecticide products do not control armored scales, so consult your OSU County Extension Office if identification is in doubt.ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or Ferti-Lome Tree & Shrub Systemic Insect Drench 4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Most non-systemic contact insecticides cannot penetrate protective, waxy layer of scales. Thus, apply sprays to target crawler (nymph) stage.Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Insecticidal SoapGarden Safe Brand Insecticidal Soap Insect KillerNSCarefully read label of insecticidal soap products for phytotoxicity statements.
MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray 1BCarefully read label of malathion products for phytotoxicity statements.
Mineral OilBonide All Seasons Horticultural & Dormant Spray Oil ConcentrateUNDo not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
Neem OilGarden Safe Neem Oil Extract or Green Light Neem Concentrate HO Carefully read label of neem oil products for phytotoxicity statements.
THRIPSAcetamipridOrtho Max Flower, Fruit and Vegetable Insect Killer RTU 4A Systemic insecticide. Apply as a foliar spray.
Measure 1/16 inch long.
CarbarylGardenTech Sevin Concentrate Bug Killer1AOnly effective against exposed thrips. See note atend of section on Sevin.
Active spring and summer. These tiny insects are difficult to control due to their small size and tendency to hide in flowers and under foliage. The body tapers toward the end of the abdomen and both pairs of wings are fringed with hairs.DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or Ferti-Lome Tree & Shrub Systemic Insect Drench 4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Feeding causes small spots of discoloration on leaves and flowers. As feeding continues and population increases, small spots often coalesce into large blotches. Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Thorough coverage of sprays is important for effective thrips control.Insecticidal Soap Garden Safe Brand Insecticidal Soap Insect KillerNSCarefully read label of insecticidal soap products for phytotoxicity statements.
MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
SpinosadFerti-Lome Borer, Bagworm, Tent Caterpillar, & Leafminer Spray5Thorough coverage of upper and lower leaf surfaces is essential for effective control.
WHITEFLIESAcetamipridOrtho Max Flower, Fruit and Vegetable Insect Killer RTU4ASystemic insecticide. Apply as a foliar spray.
Measure 1/8 inch long. Active summer through early fall.DinotefuranGreen Light Tree and Shrub Insect Control w/ Safari 2G or Gordon’s Professional Turf & Ornamental Products Zylam Liquid Systemic Insecticide4ASystemic insecticide. Apply to soil around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Tiny insects. Adults have yellow bodies and white wings. Adults and nymphs commonly found on underside of leaves.EsfenvalerateOrtho Bug-B-Gon Multi-Purpose Insect Killer Ready Spray3A
Adults and nymphs feed on plant sap with piercing-sucking mouthparts and cause yellowing of leaves. Often “white clouds” of adults fly out of disturbed foliage. ImidaclopridBayer Advanced 12 Month Tree & Shrub Insect Control or Ferti-Lome Tree & Shrub Systemic 4AUse imidacloprid as a soil drench around base of trunk. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
For effective whitefly control, ensure thorough coverage by wetting plants to the dripping point. Try to ensure coverage of the underside of leaves and penetrate dense foliage. Repeat applications are frequently needed.Imidacloprid + ClothianidinBayer Advanced Tree & Shrub Protect and Feed RTU Granules II4A + 4AApply granules around base of trunk and water in to soil. Determine rate based on trunk diameter or height of shrub. BEE CAUTION: Do not apply to plants in bloom.
Alternative insecticide options exist, including botanical insecticides; see Note 2 at end of section.Insecticidal SoapGarden Safe Brand Insecticidal Soap Insect KillerNS Carefully read label of insecticidal soap products for phytotoxicity statements.
MalathionGordon’s Malathion 50% Spray or Hi-Yield 55% Malathion Spray1BCarefully read label of malathion products for phytotoxicity statements.
Mineral OilBonide All Seasons Horticultural & Dormant Spray Oil ConcentrateHODo not apply dormant oil concentrations to actively growing plants nor to broadleaf evergreens, maple, mountain ash, or beech.
Neem OilGarden Safe Neem Oil Extract or UN Carefully read label of neem oil products for
Green Light Neem Concentratephytotoxicity statements.
Piperonyl Butoxide + PyrethrinsGardenTech Worry Free Brand ConcentrateNS + 3A
LAWN PESTS
ANTSAcephate Ortho Orthene Fire Ant Killer1BApply only to ant mounds.
Includes harvester ants, fire ants, and other nuisance ants.BifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
Active spring and summer.CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
Ants are nuisance pests due to their mound building in lawns and foraging activity. Also, fire ants and harvester ants bite and sting.CypermethrinAmdro Quick Kill Brand Fire Ant Mound Drench3A
For best results, do not apply granular baits to mounds.EsfenvalerateOrtho Bug-B-Gon Max Garden & Landscape Insect Killer3A
HydramethylnonMaxforce Complete Brand Granular Insect Bait20A
PermethrinHi-Yield Indoor/Outdoor Broad Use Insecticide or Ferti-Lome Indoor/Outdoor Multi-purpose Insect Spray3A
SpinosadFerti-lome Come and Get It Fire Ant Killer5
ARMYWORMS and CUTWORMSBacillus thuringiensis (B.t.) subsp. kurstakiSafer Garden Dust11AThoroughly apply dust to cover all plant surfaces.
Measure up to 1.5 inches. Larval stage of several moths. Some live above, and some below ground. BifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
Armyworm and fall armyworm aremost likely to feed on turfgrass in lawns. Damage is most evident with feeding activity of large larvae.Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1A
Monitor by using a soap flush (2 T. lemon-scented dish soap per gal water). Treat when damage is noticeable and 2-3 small (1/2 inch or less) caterpillars per square foot are present.ChlorantraniliproleScotts GrubEx 128Apply as a preventative treatment in areas with a history of infestation.
ClothianidinGreen Light Chinch Bug Killer with ArenaApply as a preventative treatment in areas with a history of infestation. BEE CAUTION: Do not apply when flowering weeds are in bloom.
CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate
CypermethrinAmdro Quick Kill Lawn & Landscape Insect Killer Concentrate
DeltamethrinEnforcer BugMax Insect Killer Concentrate
HalofenozideNatural Guard Grub Control
TrichlorfonBayer Advanced 24 Hour Grub Killer Plus RTS GranulesApply as a preventative treatment in areas with a history of infestation.
BILLBUGSBifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3AEffective against adults only.
Measure 1/4 inch long.Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1AEffective against adults only.
Adults are typical “weevils” with elongate snout. Body is shiny black with a raised “Y”- shaped area on thorax. Larvae are legless, having a white body and brown head.ChlorantraniliproleScotts GrubEx 128Apply as a preventative treatment in areas with a history of infestation.
ClothianidinGreen Light Chinch Bug Killer with Arena4AApply as a preventative treatment in areas with a history of infestation. BEE CAUTION: Do not apply when flowering weeds are in bloom.
Adults chew holes in leaves and stems to lay eggs. Larvae burrow in stems and crown. Sawdust-like frass is left behind after feeding. CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3AEffective against adults only.
Plants may die and sod loses “holding power.”CypermethrinAmdro Quick Kill Lawn & Landscape Insect Killer Concentrate3AEffective against adults only.
Feeding damage is sometimes mistaken for winter-kill damage.ImidaclopridHi-Yield Grub Free Zone III or Gordon’s Grub No-More Granules4AApply as a preventative treatment in areas with a history of infestation. BEE CAUTION: Do not apply when flowering weeds are in bloom.
Treat if damage is noticeable in lawn in spring and billbug larvae are present.CyfluthrinKiller for Soil & Turf Concentrate
HalofenozideNatural Guard Grub Control18Apply as a preventative treatment in areas with a history of infestation.
PermethrinHi-Yield Kill-A-Bug II Lawn Granules3AEffective against adults only.
CHIGGERS and TICKSBifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
Chiggers are the six-legged stage of a mite that is small and pale yellow. It feeds for about 4 days then drops off and changes to a nymph and finally an adult. Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1A
CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
The American dog tick, lone star tick, and brown dog tick are commonly found in home awns. The brown dog tick is often found inside homes and other structures. American dog ticks are considered a major vector of Rocky Mountain Spotted Fever.CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
DeltamethrinEnforcer BugMax Insect Killer Concentrate3A
PermethrinHi-Yield Kill-A-Bug II Lawn Granules or Enforcer Outdoor Insect Killer Concentrate3A
TrichlorfonBayer Advanced 24 Hour Grub Killer Plus RTS Granules1B
CHINCH BUGSBifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
Adults are 1/8 inch long, black with white wings folded over the back into an “hour glass” shape. Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1A
Nymphs are reddish to brown, with a white stripe across their “shoulders.”ClothianidinGreen Light Chinch Bug Killer with Arena4ABEE CAUTION: Do not apply when flowering weeds are in bloom.
Chinch bugs suck plant juices and clog phloem and xylem. As they feed, they also inject a toxin. Symptoms resemble drought injury; patchy with yellowing and dying leaves. CyfluthrinBayer Advanced Power Force Multi-Insect Killer Concentrate3A
CypermethrinAmdro Quick Kill Lawn & Landscape Insect Killer Concentrate 3A
Keep thatch to a minimum and maintain proper levels of water and fertilizer.DeltamethrinEnforcer BugMax Insect Killer Concentrate3A
Imidacloprid + CyfluthrinBayer Advanced Complete Brand Insect Killer for Soil & Turf Concentrate4A + 3ABEE CAUTION: Do not apply when flowering weeds are in bloom.
PermethrinHi-Yield Kill-A-Bug II Lawn Granules or Enforcer Outdoor Insect Killer Concentrate3A
DIGGER WASPS CyfluthrinBayer Advanced Power Force Multi-Insect Killer RTS Granules3A
Includes cicada killer, scoliid, and typhiid wasps.DeltamethrinEnforcer BugMax Insect Killer Concentrate3A
Typical wasp appearance and often colorful. Males often harass people who enter their breeding territory. Females rarely sting and sometimes nest in groups. Wasps prefer nesting in bare ground versus mulched landscapes.PermethrinHi-Yield Kill-A-Bug II Lawn Granules3A
Treat nest openings when wasps are not active. Repeat treatments may be needed in 2 or 3 days.Piperonyl Butoxide + PyrethrinsGardenTech Worry Free Brand ConcentrateNS + 3AConsider not treating unless they become a major nuisance.
FLEASBifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
Small (up to 2/5 inch) brown, wingless insects that are flattened on both sides. Treat areas where pets frequent.Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1A
Fleas feed on blood using sucking mouthparts. Bites cause small hardened bumps that are itchy and/or painful.CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
DeltamethrinEnforcer BugMax Insect Killer Concentrate3A
PermethrinHi-Yield Kill-A-Bug II Lawn Granules or Enforcer Outdoor Insect Killer Concentrate3A
GRASSHOPPERSBifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
1-2 inches long, outer wings leathery, inner wings clear or colored. Enlarged hind legs designed for jumping.Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1A
Grasshoppers feed on foliage of numerous plants but prefer grasses.CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
For additional management suggestions, see EPP-7322: Grasshopper Control in Gardens and Landscapes.CypermethrinAmdro Quick Kill Lawn & Landscape Insect Killer Concentrate3A
Nosema locustaeNolo Bait or SemasporeM
PermethrinHi-Yield Kill-A-Bug II Lawn Granules or Enforcer Outdoor Insect Killer Concentrate3A
LEAFHOPPERSBifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
Tiny, wedge-shaped insects that are yellow, brown, or green. When disturbed, they fly or hop short distances. They feed by sucking sap from leaves and stems. Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1A
CypermethrinAmdro Quick Kill Lawn & Landscape Insect Killer Concentrate3A
Damaged grass may appear slightly yellow or off white.DeltamethrinEnforcer BugMax Insect Killer Concentrate3A
PermethrinHi-Yield Kill-A-Bug II Lawn Granules or Enforcer Outdoor Insect Killer Concentrate3A
TrichlorfonBayer Advanced 24 Hour Grub Killer Plus RTS Granules1B
MILLIPEDESBifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
Measure up to 1 inch long.
Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1A
Round body and many (80 to 400) legs. CarbarylGardenTech Sevin ConcentrateBug Killer1A See note at end of section on Sevin.
Reduce or eliminate moist areas and harborage (grass clippings, leaves, wood debris). Water lawn during early morning to increase the time that turf is dry during a 24-hour period. Dethatch high-maintenance lawns.CypermethrinAmdro Quick Kill Lawn & Landscape Insect Killer Concentrate3A
PermethrinHi-Yield Kill-A-Bug II Lawn Granules or Enforcer Outdoor Insect Killer Concentrate3A
Millipedes rarely cause damage, but can invade households when conditions become dry. TrichlorfonBayer Advanced 24 Hour Grub Killer Plus RTS Granules1B
SOD WEBWORMSBifenthrinOrtho Bug-B-Gon Max Lawn & Garden Insect Killer Concentrate3A
Measure 1/2 to 1 inch long. Bifenthrin + CarbarylFortify Above and Below Insect & Grub Control3A + 1A
Larvae vary from gray to light green to brown. Adult moths with wingspans 1/2 to 3/4 inch, many with a snout-like projection, and fly in a zigzag pattern when disturbed.CarbarylGardenTech Sevin Concentrate Bug Killer1ASee note at end of section on Sevin.
ChlorantraniliproleScotts GrubEx 128Apply as a preventative treatment in areas with a history of infestation.
Larvae chew on tender leaves, may cut off grass blades as they get older. Injury can be mistaken or disease or drought injury. Most likely to occur during late summer.ClothianidinGreen Light Chinch Bug Killer with Arena3AApply as a preventative treatment in areas with a history of infestation. BEE CAUTION: Do not apply when flowering weeds are in bloom.
Bermudagrass usually can outgrow damage. Young larvae present about 2 weeks after peak moth flights. Monitor by using a soap flush (2 T. lemon-scented dish soap per gal water).CypermethrinAmdro Quick Kill Lawn & Landscape Insect Killer Concentrate3A
DeltamethrinEnforcer BugMax Insect Killer Concentrate 3A
HalofenozideNatural Guard Grub Control18Apply as a preventative treatment in areas with a history of infestation.
TrichlorfonBayer Advanced 24 Hour Grub Killer Plus RTS Granules1B
WHITE GRUBSCarbarylGardenTech Sevin Concentrate Bug Killer1AApply as a curative treatment in spring or fall tocontrol active white grubs.
Large, “C”-shaped larvae with a white body and a brown head. Larval stage of several beetle species.ChlorantraniliproleScotts GrubEx 128Apply as a preventative treatment in areas with a history of infestation.
ClothianidinGreen Light Chinch Bug Killer with Arena4AApply as a preventative treatment in areas with a history of infestation. BEE CAUTION: Do not apply when flowering weeds are in bloom.
White grubs feed on grass roots at or just below the thatch layer. Grass takes on droughty appearance. Damage may be seen throughout growing season but more pronounced in fall. ImidaclopridHi-Yield Grub Free Zone III or Gordon’s Grub No-More Concentrate4AApply as a preventative treatment in areas with a history of infestation. BEE CAUTION: Do not apply when flowering weeds are in bloom.
Vertebrate predators cause secondary damage as they dig for grubs.Imidacloprid + CyfluthrinBayer Advanced Complete Brand Insect Killer for Soil & Turf Concentrate4A + 3AApply as a preventative treatment in areas with a history of infestation. BEE CAUTION: Do not apply when flowering weeds are in bloom.
Monitor by cutting back several 1 square foot sections of lawn and count grubs.Treat when lawn has 15-20 masked chafer grubs per square foot or 4-5 May/June beetle grubs per square foot.HalofenozideNatural Guard Grub Control18Apply as a preventative treatment in areas with a history of infestation.
TrichlorfonBayer Advanced 24 Hour Grub Killer Plus RTS Granules1BApply as a curative treatment in spring or fall tocontrol active white grubs.
* The numbers associated with the pesticide class column were developed by the Insecticide Resistance Action Committee, (IRAC) in 2005. It is intended to help in the selection of insecticides for preventative resistance management. If you make multiple applications for a specific pest or group of pests during a growing sequence, simply select a registered insecticide with a different number for each generation (14-21 days). You can rotate within the same number if more than one subgroup is available (Example: 2A and 2B). To further delay resistance from developing, integrate other control methods into your pest management programs.
1A=Carbamates14= Nereistoxin analogues
1B=Organophosphates15= Benzoylureas
2A=Cyclodiene organochlorines16= Buprofezin
2B=Phenylpyrazoles (Fiproles)17= Cyromazine
3A=Pyrethroids, Pyrethrins18= Diacylhydrazines
3B=DDT, Methoxychlor19= Amitraz
4A=Neonicitinoids20A= Hydramethylnon
4B= Nicotine 20B= Acequinocyl
4C=Sulfoxaflor20C= Fluacrypyrim
4D= Butenolides 21A= METI acaricides and insecticides
5=Spinosyns21B= Rotenone
6= Avermectins, Milbemycins22A = Indoxacarb
7A=Juvenile hormone analogues22B= Metaflumizone
7B=Fenoxycarb23= Tetronic and tetramic acid derivatives
7C=Pyriproxyfen24A= Phosphine
8A=Alkyl halides24B= Cyanides
8B=Chloropicrin25= Beta-ketonitrile derivatives
8C=Sulfuryl fluoride (fumigant)26= (unassigned)
8D=Borax27= (unassigned)
8E=Tartar emetic28= Diamides
8F= Methyl isothiocyanate generatorsUN= Unknown mode of action
9B=PymetrozineNS= Non-specified, multi-site
9C=FlonicamidM= Microbials
10A= Clofentezine. Hexythiazox, Diflovidazin BLO= Biological organisms
10B= Etoxazole
11A= Bacillus thuringiensis and the insecticidal proteins they produce
11B= Bacillus sphaericus
12A= Diafenthiuron
12B= Organotin miticide
12C= Propargite
12D= Tetradifon
13= Chlorfenapyr, DNOC, Sulfluramid
NOTES:
1 Sevin - Not all Sevin (carbaryl) labels allow for homeowner use or labels may state “for non-residential use only on trees and ornamentals.” The “non-residential use only” restriction limits the use of those products to areas like shelter belts, forests, parks, recreational areas, etc. One should read the Sevin product label carefully prior to purchase to see if these restrictions apply.
2 Botanical Insecticides - Some organic gardeners prefer to use botanicals. Materials that may be available in your area or from garden supply catalogues for these individuals are: Rotenone, Ryania, Sabadilla, Neem products and natural pyrethrum (apply any of these per label directions).

Eric Rebek
Extension Entomologist and Associate Professor

Mike Schnelle
Extension Ornamentals – Floriculture Specialist

 

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