Introduction

673
Chlorpyrifos
Company:
Insecticide Group
1B
Refer to page 624
Dow AgroSciences (Lorsban 4E – PCP#14879; Lorsban NT – PCP#29650)
ADAMA Canada (Pyrinex 480EC – PCP#23705)
FMC Corporation (Nufos 4E – PCP#25831)
IPCO (Citadel 480EC – PCP#27479)
Loveland Products Canada (Pyrifos 15G – PCP#24648; Warhawk 480EC – PCP#29984)
Farmers of North America (MPOWER Krypton – PCP#30985)
Different trade names refer to different companies. Note that products may have different label recommendations.
Check your label for more information.
Formulations:
Citadel, Nufos, Lorsban 4E, MPOWER Krypton, Pyrinex and Warhawk – 480 g/L chlorpyrifos and Lorsban NT – 452 g/L
formulated as an emulsifiable concentrate.
• Container sizes (Note that container sizes may vary between products) – 10 L jug, 115 L returnable container,
208 L drum.
Pyrifos – 15% chlorpyrifos formulated as a granule
Insects Controlled and Registered Crops:
Crop
Barley, Oats, Wheat
Wheat only
Canola
Flax
Lentils
Sunflowers
Corn
Potato
Insect
Army, darksided, pale western and red-backed cutworms, armyworms, grasshoppers
Russian wheat aphid, brown wheat mite, wheat midge
Darksided, redbacked, variegated, pale western, and army cutworms; bertha army worm, alfalfa
looper, armyworm, diamondback moth larvae, grasshoppers, lygus bug
Darksided, redbacked, variegated, pale western, and army cutworms, armyworm, bertha
armyworm
Pale western cutworm, grasshoppers
Redbacked, pale western and army cutworms, sunflower seed weevil (except for Pyrinex and
Citadel)
Darksided, black and redbacked cutworms
Wireworms (in-furrow at planting – Pyrinex and Pyrifos only), Colorado potato beetle (larvae),
potato flea beetle, tarnished plant bug, redbacked cutworm, black cutworm, darksided
cutworm
Application:
Chlorpyrifos
• May be applied by air or ground equipment except for the following. Ground application only for redbacked cutworm
control in corn and sunflower. Ground application only for potatoes.
• Pyrifos 15G may be applied by ground only and is to be applied in furrow at planting. Refer to label for specific rates
with respect to row spacing.
• Uniform coverage of the crop is essential in aerial applications. Apply when insects exceed economic threshold levels
and use sufficient water for good coverage. Use higher rates for heavy infestations, mature insects, heavy crop canopy,
or under dry soil conditions.
Insect Control