Corn insect control

Francis P.F. Reay-Jones

Insect	Pesticide and Formulation	Rate	REI	PHI	PGI	CoMMENTS
Armyworm (seed insecticide)	Bt-resistant corn YIELDGARD CORN BORER HERCULEX	Insecticide in plant	-	-		See dealers for refuge requirements for Bt corn. The Bt gene is expressed in ear and green tissue of Yieldgard corn, but only in green tissue of Herculex corn.
Armyworms (at planting)	Chlorpyrifos LORSBAN 4E R CHLORPYRIFOS 4E AG R LORSBAN 15G	2 pts/acre 2 pts/acre 6-8 oz/ 1000 ft of row	24 24 24	35 35 35	14 14 14	Apply as preplant broadcast granules or a preplant broadcast spray in 20 gal spray/ac or more.
Armyworms (post-emergence insecticides)	Beta-cyfluthrin BAYTHROID XL R	1.6-2.8 oz/ac	12	21	0 (green) 21 (fodder)
	Bifenthrin CAPTURE 2EC R CAPTURE 1.15G R	2.1-6.4 oz/ac 3.5-8.7 oz/ac	12 12	30 30	30 30	Apply broadcast in at least 10 gal/ac of water by ground. Apply broadcast when insects first appear.
	Carbaryl SEVIN 80S, 80WSP 4F, XLR Plus	1.25-2.5 lb/ac 1-2 qts/ac	12 12	14 (silage) 48 (ears) 14 (silage) 48 (ears)	14 (green) 48 (fodder) 14 (green) 48 (fodder)
	Deltamethrin DECIS 1.5EC	1.5-1.9 oz/ac	12	21	12 (green) 21 (fodder)	For ground application, use at least 5 gal/ac of water.
	Esfenvalerate ASANA XL R	5.8-9.6 oz/ac	12	21	-
	Gamma-cyhalothrin PROAXIS R	2.56-3.84 oz/ac	24	21	1 (green) 21 (fodder)	For control of 1st and 2nd instars only.
	Lambda-cyhalothrin WARRIOR R	2.56-3.84 oz/ac	24	21	1 (green) 21 (fodder)	Use higher rates for large larvae.
	Methomyl LANNATE LV R LANNATE SP R	0.75-1.5 pts/ac 0.25-0.5 lbs/ac	48 48	21 (ears) 21 (ears)	3 (green) 21 (fodder) 3 (green) 21 (fodder)
	Methoxyfenozide INTREPID 2F	4-8 oz/ac	4	21	21	Use only for true armyworm. Apply at first sign of egg hatch.
	Methyl parathion CHEMINOVA METHYL 4EC R PENNCAP-M R	0.5 pts/ac 2-3 pts/ac	60 60	12 12	12 12
	Permethrin PERMETHRIN 3.2EC R POUNCE 3.2EC R	4-8 oz/ac 4-8 oz/ac	12 12	30 30	0 (green) 30 (fodder) 0 (green) 30 (fodder)	Apply at first sign of egg hatch.
	Permethrin POUNCE 1.5G R	6.7-13.3 oz/ac	12	30	0 (green) 30 (fodder)	Apply at first sign of egg hatch.
	Spinosad TRACER	2-3 oz/ac	4	28	7	Apply at peak egg hatch of each generation.
	Zeta-cypermethrin MUSTANG MAX R	3.2-4.0 oz/ac	12	30	60
Billbugs (seed insecticide)	Clothianidin PONCHO 250 PONCHO 1250	0.25 mg (ai)/seed 1.25 mg (ai)/seed	- -	- -	- -	Seed treatment
	Thiomethoxam CRUISER 5FS 250 CRUISER 5FS 1250	0.25 mg (ai)/seed 1.25 mg (ai)/seed	12 12	- -	- -	Seed treatment
Billbugs (at planting)	Terbufos COUNTER 15G R	6 to 8 oz/1000 ft of row	48	60	30	Apply either in 7 inch band or in furrow
	Telfluthrin FORCE 3G R	4 to 5 oz/ 1000 ft of row	0	-	-	Apply as band or T-band.
	Fipronil REGENT 4SC R	0.24 oz/ 1000 ft of row	0	90	90	Apply in furrow using a direct injection liquid system.
Chinch bug (seed insecticide)	Thiomethoxam CRUISER 5FS 250 CRUISER 5FS 1250	0.25 mg (ai)/seed 1.25 mg (ai)/seed	12 12	- -	- -	Seed treatment
Chinch bug (at planting)	Telfluthrin FORCE 3G R	4 to 5 oz/ 1000 ft of row	0	-	-	Apply as band or T-band.
	Fipronil REGENT 4SC R	0.24 oz/ 1000 ft of row	0	90	90	Apply in furrow using a direct injection liquid system.
	Chlorpyrifos LORSBAN 4E R CHLORPYRIFOS 4E AG R LORSBAN 15G	1-2 pts/acre 1-2 pts/acre 8 oz/ 1000 ft of row.	24 24 24	35 35 35	14 14 14	Apply as preplant broadcast granules or a preplant broadcast spray in 20 gal spray/ac or more.

Chinch bug (post-emergence insecticides)	Bifenthrin CAPTURE 2EC R	2.1-6.4 oz/ac	12	30	30	Apply broadcast in at least 10 gal/ac of water by ground.
	Carbaryl SEVIN 80S, 80WSP 4F, XLR Plus	1.25-2.5 lb/ac 1-2 qts/ac	12 12	14 (silage) 48 (ears) 14 (silage) 48 (ears)	14 (green) 48 (fodder) 14 (green) 48 (fodder)	Use ground equipment to apply at least 20 gal/ac of water and direct spray towards stalk.
	Chlorpyrifos LORSBAN 4E R CHLORPYRIFOS 4E AG R	1-2 pts/acre 1-2 pts/acre	24 24	35 35	14 14
	Beta-cyfluthrin BAYTHROID XL R	1.6-2.8 oz/ac	12	21	0 (green) 21 (fodder)
	Deltamethrin DECIS 1.5EC	1.5-1.9 oz/ac	12	21	0 (green) 12 (fodder)	For ground application, use at least 5 gal/ac of water.
	Esfenvalerate ASANA XL R	5.8-9.6 oz/ac	12	21	-	Spray needs to be directed towards base of plant.
	Gamma-cyhalothrin PROAXIS R	3.84 oz/ac	24	21	1 (green) 21 (fodder)
	Lambda-cyhalothrin WARRIOR R	3.84 oz/ac	24	21	1 (green) 21 (fodder
	Zeta-cypermethrin MUSTANG MAX R	3.2-4.0 oz/ac	12	30	60
Corn earworm (seed insecticide)	Bt-resistant corn YIELDGARD CORN BORER HERCULEX	Insecticide in plant	-	-		See dealers for refuge requirements for Bt corn. The Bt gene is expressed in ear and green tissue of Yieldgard corn, but only in green tissue of Herculex corn.

Corn earworm (post-emergence insecticides)	Bifenthrin CAPTURE 2EC R	2.1-6.4 oz/ac	12	30	30	Apply broadcast in at least 10 gal/ac of water by ground.
	Carbaryl SEVIN 80S, 80WSP 4F, XLR Plus	1.25-2.5 lb/ac 1-2 qts/ac	12 12	14 (silage) 48 (ears) 14 (silage) 48 (ears)	14 (green) 48 (fodder) 14 (green) 48 (fodder)
	Chlorpyrifos LORSBAN 4E R CHLORPYRIFOS 4E AG R	1-2 pts/acre 1-2 pts/acre	24 24	35 35	14 14
	Beta-cyfluthrin BAYTHROID XL R	1.6-2.8 oz/ac	12	21	0 (green) 21 (fodder)
	Deltamethrin DECIS 1.5EC	1.5-1.9 oz/ac	12	21	12 (green) 21 (fodder)	For ground application, use at least 5 gal/ac of water.
	Gamma-cyhalothrin PROAXIS R	1.92-3.2 oz/ac	24	21	1 (green) 21 (fodder)	Use before larvae enter stalk or ear.
	Lambda-cyhalothrin WARRIOR R	1.92-3.2 oz/ac	24	21	1 (green) 21 (fodder)	Use before larvae enter stalk or ear.
	Methomyl LANNATE LV R LANNATE SP R	0.75-1.5 pts/ac 0.25-0.5 lbs/ac	48 48	21 (ears) 21 (ears)	3 (green) 21 (fodder) 3 (green) 21 (fodder)
	Permethrin PERMETHRIN 3.2EC R POUNCE 3.2EC R	4-8 oz/ac 4-8 oz/ac	12 12	30 30	0 (green) 30 (fodder) 0 (green) 30 (fodder)	Apply just before silking.
	Spinosad TRACER	2-3 oz/ac	4	28	7
	Zeta-cypermethrin MUSTANG MAX R	1.76-4.0 oz/ac	12	30	60
Cutworm (seed insecticide)	Bt-resistant corn HERCULEX	Insecticide in plant	-	-		See dealers for refuge requirements for Bt corn. The Bt gene is expressed in ear and green tissue of Yieldgard corn, but only in green tissue of Herculex corn.
	Clothianidin PONCHO 250 PONCHO 1250	0.25 mg (ai)/seed 1.25 mg (ai)/seed	- -	- -	- -	Seed treatment
	Thiomethoxam CRUISER 5FS 250 CRUISER 5FS 1250	0.25 mg (ai)/seed 1.25 mg (ai)/seed	12 12	- -	- -	Seed treatment
Cutworm (at planting)	Bifenthrin CAPTURE 2EC R CAPTURE 1.15G R	0.15-0.30 oz/ 1000 ft of row 6.4-8 oz/1000 ft	12 12	30 30	30 30	Apply broadcast in at least 10 gal/ac of water by ground.
	Chlorpyrifos LORSBAN 4E R CHLORPYRIFOS 4E AG R LORSBAN 15G	2 pts/acre 2 pts/acre 8 oz/ 1000 ft of row	24 24 24	35 35 35	14 14 14	Apply as preplant broadcast granules or a preplant broadcast spray in 20 gal spray/ac or more.
	Esfenvalerate ASANA XL R	0.45 oz/ 1000 ft of row	12	21	-	Apply in band, T-band, or in furrow.
	Gamma-cyhalothrin PROAXIS R	0.66 oz/ 1000 ft of row	24	21	1 (green) 21 (fodder)	Apply in band, T-band, or in furrow.
	Lambda-cyhalothrin WARRIOR R	0.66 oz/ 1000 ft of row	24	21	1 (green) 21 (fodder)	Apply in band, T-band, or in furrow
	Permethrin PERMETHRIN 3.2EC R POUNCE 3.2EC R	4-8 oz/ac or 0.3-0.6 oz/1000 ft of row. 4-8 oz/ac or 0.3-0.6 oz/1000 ft of row	12 12	30 30	0 (green) 30 (fodder) 0 (green) 30 (fodder)	Apply in band, T-band, or in furrow
	Permethrin POUNCE 1.5G R	8 oz/1000 ft of row	12	30	0 (green) 30 (fodder)	Apply in band, T-band, or in furrow
	Terbufos COUNTER 15G R	6 to 8 oz/1000 ft of row	48	60	30	Apply either in 7 inch band or in furrow. Supression only.
	Zeta-cypermethrin MUSTANG MAX R	0.16 oz/1000 ft of row	12	30	60

Cutworm (post-emergence insecticides)	Beta-cyfluthrin BAYTHROID XL R	0.8-1.6 oz/ac	12	21	0 (green) 21 (fodder)
	Bifenthrin CAPTURE 2EC R	2.1-6.4 oz/ac	12	30	30	Apply broadcast in at least 10 gal/ac of water by ground.
	Carbaryl SEVIN 80S, 80WSP 4F, XLR Plus	2.5 lb/ac 2 qts/ac	12 12	14 (silage) 48 (ears) 14 (silage) 48 (ears)	14 (green) 48 (fodder) 14 (green) 48 (fodder)	Apply in 12-inch band over the row using sufficient volume of water to obtain thorough coverage. For broadcast, use at least 20 gal/ac of water by ground.
	Deltamethrin DECIS 1.5EC	1-1.5 oz/ac	12	21	12 (green)