Insecticides
393
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Toxicity
High acute mammalian toxicity. Acute oral LD
50
(
rats) Decis = 395 mg/kg. Severe eye and skin irritant. Toxic to bees
and other beneficial insects. Do not apply when bees are foraging.
Storage
Do not store below freezing. Do not store near feed or food. Keep away from heat, sparks and open flames.
Diazinon
Group 1B
Formulation
Product
Company
Active ingredient
Formulation
Container size
Diazinon 500E (PCP# 11889)
UAP Canada
Diazinon: 50%
Liquid
4
L and 10 L
Diazinon 50W (PCP# 19576)
Diazinon: 500 g/L
Wettable powder
2
Kg
Diazinon 50 EC (PCP# 27538)
IPCO
Diazinon: 50%
Emulsifiable concentrate
10
L
Crops, Insects Controlled and Rates
Crops
Insects controlled
Rates
Diazinon 500E
Diazinon 50W Diazinon 50 EC
Beans
Aphids, mites, leafhoppers
445
mL/acre
20
g per 300 mL
water per 4 L seed
445
mL/acre
Corn, peas
Seed corn maggot
NR
*.
NR*
Potato
Aphids, flea beetles, Colorado
potato beetles, leafhopper
445
mL/acre
NR*
445
mL/acre
Rangeland, pasture,
ditch banks, roadsides,
fencerows, wastelands
Grasshoppers
445
mL/acre
NR*
445
mL
/
acre
*
Not registered
Application Information
How to Apply
:
Ground application only. Do not apply by air.
Water volume
:
Water volume should be adequate to provide sufficient coverage.
Application Tips
Diazinon will work more effectively if the temperature is 20°C or more or when temperatures will reach or exceed
this minimum.
How it Works
Diazinon is an organophosphate insecticide with systemic and contact activity.
Restrictions
Grazing
:
Dairy, beef cattle and sheep may be grazed or fed green forage immediately following application. Hay
may be fed if not cut for 21 days following application.
Note
:
Do not spray livestock directly.
Pre-harvest Interval
:
Do not harvest crops for 3-14 days after the last application. See label for crop specific
restrictions. Do not graze or feed immature crops within 14 days of harvest.
Re-cropping
:
No restrictions.
Decis (cont’d)