Insect Control : New England Vegetable Management Guide : UMass Amherst

NOTES: For the insecticides listed below, one product trade name and formulation is provided for each active ingredient (AI) as an example of rates, preharvest interval (PHI), restricted entry interval (REI), and special instructions. In many cases, there are other products available with the same AI. Please see Table 27 and Insecticides Alphabetical Listing by Trade Name for more information on these insecticides.

The designation (Bee: L, M, or H) indicates a bee toxicity rating of low, moderate, or high. See the Protecting Honeybees and Native Pollinators section for more details.
The symbol * indicates a product is a restricted use pesticide. See Pesticide Safety and Use for more details.
The symbol ^OGindicates a product is listed by the Organic Materials Review Institute (OMRI) as approved for use in organic production. See Organic Certification section for more details.

Aphids,Green Peach (Myzus persicae) and Melon (Aphis gossypii)

For more information see aphids in the Pepper section.

acetamiprid (Assail 30SG): 2 to 4 oz/A; PHI 7d, REI 12h, Bee: M, Group 4A. Do not exceeed 16 oz per season.
afidopyropen (Sefina): 3 fl oz/A; PHI 0d, REI 12h, Bee: L, Group 9D.
alpha-cypermethrin (Fastac* EC): 3.2 to 3.8 oz/A; PHI 1d, REI 12h, Bee: H, Group 3A.
bifenthrin (Brigade* 2EC): 2.1 to 6.4 oz/A; PHI 7d, REI 12h, Bee: H, Group 3A.
Chromobacterium subtsugae strain PRAA4-1 (Grandevo^OG): 2 to 3 lb/A; PHI 0d, REI 4h, Bee: M, Group UN.
cyantraniliprole (Exirel): 13.5 to 20.5 oz/A; PHI 1d, REI 12h, Bee: H, Group 28. Green peach aphid and potato aphid only. For best performance, use with an effective adjuvant.
cyantraniliprole (Verimark): 6.75 to 13.5 oz/A at planting, 6.75 to 10 oz/A chemigation; PHI 1d, REI 4h, Bee: H, Group 28. For soil applications at planting, drip chemigation, or soil injection. Suppression only.
flonicamid (Beleaf 50SG): 2.8 to 4.28 oz/A; PHI 0d, REI 12h, Bee:L, Group 9C.
flupyradifurone (Sivanto): 10.5 to 14 oz/A for green peach aphid foliar, 7 to 14 oz/A for other aphids foliar, 21 to 28 oz/A soil; PHI 1d foliar, 45d soil, REI 4h, Bee: L, Group 4D.
gamma-cyhalothrin (Declare*): 1.02 to 1.54 oz/A; PHI 5d, REI 24h, Bee: H, Group 3A. Suppression only.
imidacloprid (Admire Pro): 7 to 14 oz/A soil, 1.3 to 2.2 oz/A foliar, 0.44 oz/10,000 plants on seedling transplants in greenhouse; PHI 21d soil, 0d foliar, REI 12h, Bee: H, Group 4A. Planthouse applications only provide short-term protection. An additional field application must be made within 2 weeks following transplanting to provide continuous protection.
malathion (Malathion 57 EC): 1.5 pt/A; PHI 1d, REI 12h, Bee: H, Group 1B.
pyrethrin (PyGanic EC5.0^OG): 4.5 to 17 oz/A; 0.25 to 0.50 oz/gal, 3 gal/1000 sq ft in greenhouse for backpack sprayers; PHI 0d, REI 12h, Bee: M, Group 3A.
spirotetramat (Movento): 4 to 5 oz/A; PHI 1d, REI 24h, Bee: M, Group 23. Must be tank-mixed with a spray adjuvant with spreading and penetrating properties to maximize leaf uptake and sytemicity. Don't use sticker adjuvants. Controls immature stages, may also reduce adult fertility.
zeta-cypermethrin (Mustang*): 3.2 to 4 oz/A; PHI 1d, REI 12h, Bee: H, Group 3A. Aphid control may be variable depending on species present and host-plant relationships.

Corn Earworm, also known as Tomato Fruitworm (Helicoverpa zea)

See Sweet Corn section for more information.

alpha-cypermethrin (Fastac* EC): 2.2 to 3.8 oz/A; PHI 1d, REI 12h, Bee:H, Group 3A.
bifenthrin (Brigade* 2EC): 2.1 to 6.4 oz/A; PHI 7d, REI 12h, Bee: H, Group 3A.
Bacillus thuringiensis aizawai (XenTari^OG): 0.5 to 1.5 lb/A; PHI 0d, REI 4h, Bee: L, Group 11. Must be ingested. Apply in evening or early morning, before larvae are actively feeding. Adherence and weather-fastness will improve with use of an approved speader-sticker. Use high rate at cool temperatures. For resistance management, may be rotated with Bt kurstaki products (Dipel).
Bacillus thuringiensis kurstaki (Dipel DF^OG): 0.5 to 2 lb/A; PHI 0d, REI 4h, Bee: L, Group 11. Must be ingested. Apply in evening or early morning, before larvae are actively feeding. Adherence and weather-fastness will improve with use of an approved speader-sticker. Use high rate at cool temperatures. For resistance management, may be rotated with Bt aizawai products (XenTari).
Burkholderia spp. strain A396 (Venerate XC^OG): 1 to 4 qt/A; PHI 0d, REI 4h, Bee: M, Group UN.
carbaryl (Sevin XLR Plus): 1 to 1.5 qt/A; PHI 3d, REI 12h, Bee: H, Group 1A.
chlorantraniliprole (Coragen): 3.5 to 7.5 oz/A; PHI 1d, REI 4h, Bee: L, Group 28. May be applied to soil at planting, through drip chemigation, or as foliar spray.
Chromobacterium subtsugae strain PRAA4-1 (Grandevo^OG): 1 to 3 lb/A; PHI 0d, REI 4h, Bee: M, Group UN.
cyantraniliprole (Exirel): 7 to 13.5 oz/A; PHI 1d, REI 12h, Bee: H, Group 28.
cyantraniliprole (Verimark): 5 to 10 oz/A; PHI 1d, REI 4h, Bee: H, Group 28. For soil applications at planting, drip chemigation, or soil injection.
cyclaniliprole (Harvanta): 10.9 to 16.4 fl oz/A; PHI 1d, REI 4h, Bee: H, Group 28.
emamectin benzoate (Proclaim*): 2.4 to 4.8 oz/A; PHI 7d, REI 12h, Bee: H, Group 6. Apply when larvae are first observed.
gamma-cyhalothrin (Declare*): 1.02 to 1.54 oz/A; PHI 5d, REI 24h, Bee: H, Group 3A.
methoxyfenozide (Intrepid 2F): 10 to 16 oz/A; PHI 1d, REI 4h, Bee: L, Group 18. Suppression only. Apply at first sign of feeding damage, or when threshold levels are reached.
novaluron (Rimon* 0.83EC): 9 to 12 oz/A; PHI 1d, REI 12h, Bee: L, Group 15. Most effective on 1st and 2nd instars.
spinetoram (Radiant SC): 5 to 10 oz/A; PHI 1d, REI 4h, Bee: M, Group 5.
spinosad (Entrust SC^OG): 3 to 6 oz/A; PHI 1d, REI 4h, Bee: M, Group 5. Do not apply to seedlings for transplant.
zeta-cypermethrin (Mustang*): 2.24 to 4 oz/A; PHI 1d, REI 12h, Bee: H, Group 3A.

Japanese Beetles (Popillia japonica)

Beetles migrate from turf or pastures starting in July and skeletonize leaves.

bifenthrin (Brigade* 2EC): 2.1 to 6.4 oz/A; PHI 7d, REI 12h, Bee: H, Group 3A.
gamma-cyhalothrin (Declare*): 1.02 to 1.54 oz/A; PHI 5d, REI 24h, Bee: H, Group 3A. Adults only.
Isaria fumosorosea Apopka Strain 97 (PFR-97 20% WDGOG): 1 to 2 lb/A (soil applications only); PHI 0d, REI 4h, Bee: M, Group UN.
malathion (Malathion 57 EC): 1.5 pt/A; PHI 1d, REI 12h, Bee: H, Group 1B.
pyrethrin (PyGanic EC5.0^OG): 4.5 to 17 oz/A; 0.25 to 0.50 oz/gal, 3 gal/1000 sq ft in greenhouse for backpack sprayers; PHI 0d, REI 12h, Bee: M, Group 3A.

Two-spotted Spider Mite (Tetranychus urticae)

Outbreaks are often caused by the use of broad-spectrum insecticides. Two-spotted spider mites (TSSM) tend to be prone to pesticide resistance. Watch for white speckling on the upper surface of leaves or webbing on the undersurface around leaf veins. Avoid early-season, broad-spectrum insecticide applications for other pests. Use selective products whenever possible. With most miticides (not bifenazate), use 2 applications, approximately 5 to 7 days apart, to help control immature mites that were in the egg stage and protected during the first application. Alternate between products after 2 applications to help prevent or delay resistance. For more information on TSSM see the Eggplant section.

abamectin (Agri-Mek* SC): 1.75 to 3.5 oz/A; PHI 7d, REI 12h, Bee: H, Group 6. Must be mixed with a non-ionic wetting, spreading and/or penetrating spray adjuvant. Do not use binder or sticker type adjuvant.
acequinocyl (Kanemite 15SC): 31 oz/A; PHI 1d, REI 12h, Bee: L, Group 20B. Do not use less than 100 gal water/A. Use of an adjuvant or surfactant is prohibited.
bifenazate (Acramite 50WS): 0.75 to 1 lb/A; PHI 3d, REI 12h, Bee: L, Group 25. Long residual, but not systemic. Ensure complete coverage of upper and lower leaf surfaces and fruit.
bifenthrin (Brigade* 2EC): 5.1 to 6.4 oz/A; PHI 7d, REI 12h, Bee: H, Group 3A.
fenproximate (Portal XLO): 2 pt/A; PHI 1d, REI 12h, Bee: L, Group 21A. Do not use on greenhouse or high tunnel crops.
gamma-cyhalothrin (Declare*): 1.02 to 1.54 oz/A; PHI 5d, REI 24h, Bee: H, Group 3A. Suppression only.
hexythiazox (Onager Optek*): 12 to 24 oz/A; PHI 1d, REI 12h, Bee: L, Group 10A.
sulfur (Microthiol Disperss^OG): 3 to 10 lb/A; PHI 0d, REI 24h, Bee: L, No IRAC classification.

Stink Bugs

See Tomato section for information on stink bugs, including brown marmorated stink bug.

bifenthrin (Brigade* 2EC): 2.1 to 6.4 oz/A; PHI 7d, REI 12h, Bee: H, Group 3A.
carbaryl (Sevin XLR Plus): 1 to 1.5 qt/A; PHI 3d, REI 12h, Bee: H, Group 1A. Do not apply to crops in bloom.
gamma-cyhalothrin (Declare*): 1.02 to 1.54 oz/A; PHI 5d, REI 24h, Bee: H, Group 3A.
pyrethrin (PyGanic EC5.0^OG): 4.5 to 17 oz/A; 0.25 to 0.50 oz/gal, 3 gal/1000 sq ft in greenhouse for backpack sprayers; PHI 0d, REI 12h, Bee: M, Group 3A.
zeta-cypermethrin (Mustang*): 2.24 to 4 oz/A green stink bug, 3.2 to 4 oz/A brown stink bug; PHI 1d, REI 12h, Bee: H, Group 3A.