Introduction

700
Malathion
Company:
Insecticide Group
1B
Refer to page 624
Loveland Products Canada (Malathion 85E – PCP#8372)
IPCO (Malathion 500 – PCP#5821)
Different companies produce malathion. Note differences in label registrations, formulations and recommendations.
Check your label for more information.
Formulations:
Malathion 500 - 500 g/L malathion formulated as an emulsifiable concentrate.
Malathion 85E – 85% malathion formulated as an emusifiable concentrate.
Insects Controlled and Registered Crops:
Crop or Structure
Alfalfa
Clover (85E only)
Canola, mustard
Wheat, barley, oats, rye
Potatoes
Canaryseed (for seed) (85E only)
Sweet clover
Flax, lentils, hay, pasture
Corn (grain, forage)
Beans, peas
Empty bin spray (grain bins,
grain elevators, grain box cars,
flour mills)
Insect
Grasshoppers, aphids, lygus bugs, alfalfa weevil larvae, leafhoppers, alfalfa
blotch leafminer, spider mites, spittle bugs
Aphids, grasshoppers, leafhoppers, spider mites
Flea beetles, diamondback moth, grasshoppers
Grasshoppers, aphids, armyworm, cereal leaf beetle
Colorado potato beetle, leafhoppers, aphids, spider mites
Aphids
Sweet clover weevil
Grasshoppers
Earworms, European corn borers
Aphids, leafhoppers, spider mites
Confused flour beetles, flat grain beetles, granary weevils, grain mites, Indian
meal moths, lesser grain borers, red flour beetle, rice weevils, rusty grain
beetles, saw-toothed grain beetle
Application:
Malathion
• May be applied by air or ground equipment. Apply when insect numbers exceed economic threshold levels using
sufficient water for good coverage. Use higher rates for heavy infestations, dense canopy or mature stages of insects.
How it Works:
Malathion is a non-systemic, contact, organophosphate insecticide and acaricide of brief to moderate persistence.
Generally non-phytotoxic.
Effects of Weather:
For best results apply when daytime temperatures are above 20°C.