Microsoft word - 5 - corn.docx

Crops - Commercial
Economic Threshold
Insecticide
Pounds Active Ingredient/Acre
When to Treat
Chinch bugs
At planting
Seed treatments
Post-emergence
Corn earworm
at planting
Bt corn hybrids: Agrisure Viptera 3110, Viptera 3111, Genuity VT Double Pro (GENVT2P, VT Triple Pro (GENVT3P), Cucumber
beetles and Grape
colaspis
Cutworms
at planting
Preventive treatment. Apply at planting. Rates are based on a 40- at-planting bands or post-emergence
Crops - Commercial
Economic Threshold
Insecticide
Pounds Active Ingredient/Acre
When to Treat
Cutworms
(cont'd)
Bt corn hybrids: Agrisure Viptera 3110, Viptera 3111, Herculex I Plant varieties recommended for (HX1), Herculex XTRA (HXX), Genuity SmartStax (GENSS) or your area and comply with labeled Fall armyworm
at planting
extreme situations. Treatment for worms in the ear is not Bt corn hybrids: Agrisure Viptera 3110, Viptera 3111, Genuity VT Double Pro (GENVT2P, VT Triple Pro (GENVT3P), Rootworms
at planting
Preventive treatment. Apply at planting. Rates are based on a 40- Stalk borers
Bt corn hybrids: Agrisure CB/LL, 300GT, Viptera 3110, Viptera Plant varieties recommended for 3111; Herculex I (HX1), XTRA (HXX; YieldGrad Corn Borer (YGCB), VT Triple (VT3); Genuity VT Double Pro (GENVT2P, refuge requirements. VT Triple Pro (GENVT3P), SmartStax (GENSS or SSX Crops - Commercial
Economic Threshold
Insecticide
Pounds Active Ingredient/Acre
When to Treat
Stink bugs
1The rate provided is active ingredient per acre based on 40-inch row spacing. Refer to label for the amount of product per 1,000 row feet. Also, refer to label for application instructions/restrictions on application method, i.e. in-furrow, surface band, T-band, etc. 2Serious crop injury may occur if an ALS inhibiting herbicide is applied to corn previously treated at planting with Counter 15G. Read the ALS herbicide label carefully for exact restrictions and precautions. 3Crop injury may occur if an ALS inhibiting herbicide is applied to corn treated at planting with Thimet, Lorsban, or other organophosphate soil insecticide. 4Crop injury may occur if an ALS inhibiting herbicide is applied too soon either before or after the application of a foliar organophosphate insecticide. Read the ALS herbicide label carefully for exact restrictions and precautions. 5Karate/ Warrior T and Declare will not give effective control of brown stink bugs. Mustang Max, Cyfluthrin, and Baythroid XL will give satisfactory brown stink bug control only at the highest recommended rates. Insecticide Precautions and Limitations (refer to insecticide label for complete information)
Asana XL: Toxic to fish. Do not apply directly to water. Maximum AI/acre per season: 0.25 pound. Pre-harvest interval:
21 days. REI: 12 hours.
Baythroid: Toxic to fish and aquatic invertebrates. Maximum AI/acre per season: 0.088 pound. Pre-harvest interval:
21days. REI: 12 hours.
Bifenthrin: same as Brigade
Brigade: Do not apply within 30 days of harvest. Do not graze or cut for feed within 30 days of last application. Toxic to
bees, fish and aquatic invertebrates; maximum AI per acre per season: 0.3 pound REI: 24 hours.
Counter: Toxic to birds, fish, and other wildlife. Keep out of any body of water. REI: 48 hours.
Cruiser: Toxic to wildlife and aquatic invertebrates. Do not apply directly to water and do not allow drift or runoff. REI:
12 hours.
Cyfluthrin: Same as Baythroid, but Maximum AI/acre is 0.175.
Declare: Same as Karate, but do not apply more than 0.06 pound AI per acre per season.
Dimethoate: Toxic to wildlife and aquatic organisms. Do not apply after heading. Avoid runoff when spraying. REI: 48
hours.
Force: Highly toxic to fish and other aquatic organisms. Do not apply directly to water or wetlands or within 20 yards of
water. Rotate only to corn or soybeans. REI: 0 hours. Gaucho 600: Highly toxic to birds and aquatic invertebrates. Do not graze or feed livestock on treated seed areas for 45
days after planting. REI: 12 hours.
Intrepid: Drift and runoff may be toxic to sensitive aquatic vertebrates. Do not apply by air within 150 feet or by ground
within 25 feet of surface water. Do not apply within 21 days of harvest. REI: 4 hrs.
Crops - Commercial
Insecticide Precautions and Limitations (refer to insecticide label for complete information)
Karate Z: Toxic to fish, aquatic organisms, and bees. Do not graze livestock on treated areas or harvest for livestock
feed. Maximum AI/acre per is 0.12 pound and pre-harvest interval is 21 days REI: 24 hours.
Lannate: Toxic to fish, birds, bees, other wildlife. Keep out of any body of water. Do not graze or feed to livestock within
14 days of last application. Do not harvest for grain within 14 days of last application. Maximum AI per acre per season:
0.9 pounds REI: 48 hours.
Lorsban: Toxic to bees, birds, fish, and other wildlife. Pre-harvest interval is 21 days. Pre-harvest interval for grazing and
silage is 21 days. Maximum AI per acre per season: 3 pounds. REI: 12 hours for 15G; 24 hours for 4E.
Methyl parathion: Toxic to fish, birds, and other wildlife. Keep out of any body of water. Do not apply during pollen
shed. Do not harvest within 12 days of last application. REI: 4 days.
Mustang Max: Toxic to bees, fish, and aquatic vertebrates. Do not apply more than 0.10 pound AI per acre per season.
Pre-harvest interval: 30 days. REI: 12 hours.
Poncho: Do not use treated seed for feed, food, or oil. Refer to label for replant restrictions following treated seed
planting. Treated seed exposed on soil surface may be hazardous to wildlife.
Respect: Toxic to bees, fish, and aquatic vertebrates. Do not apply more than 0.10 pound AI per acre per season. Pre-
harvest interval: 30 days. REI: 12 hours.
Sevin: Pre-harvest interval for grain/fodder: 48 days; pre-harvest interval on grazing/silage, 14 days. Maximum AI per acre
per season 8 pounds. REI: 12 hours.
Tracer: Toxic to bees. Don't apply to water. Don't apply more than 14.4 ounces per acre per year. Pre-harvest
treatment for grain or fodder, 7 days; for forage, 14 days. REI: 4 hrs.
Warrior T: Same general restrictions as Karate. Do not apply more than 0.12 pound AI per acre per season, and
pre-harvest interval is 21 days.
Abbreviations: REI -re-entry interval; AI - active ingredient

Source: http://www.extension100years.net/NR/rdonlyres/76B94E13-7D75-4C1B-975A-8A622EDE6F52/90282/5CornFINAL.pdf