Insecticides
407
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Orthene
Group 1B
Formulation
Product
Company
Active ingredient
Formulation
Container size
Orthene (PCP# 14225)
Arysta LifeScience
Acephate: 75%
Soluble Powder
1.5
kg
Crops, Insects Controlled and Rates
Crop
Insects controlled
Rate per acre Specific comments
Corn (seed,
sweet)
European corn borer
300 - 440
g
Apply when egg mass count indicates an economically
damaging population. Use the high rate only when heavy pest
infestations are present.
Potato
Green peach aphid,
potato aphid, potato flea
beetle, potato leafhopper,
tarnished plant bug
300 - 440
g
Begin applications at first sign of insects and repeat on a 7 - 10
day schedule.
Note: If Orthene is to be used on a commodity that may be exported to the U.S. and you require information on acceptable residue levels in the U. S., visit
CropLife Canada’s web site at
www.croplife.ca
Application Information
How to Apply
:
Ground application only. Do not apply by air.
Water Volume
:
Ground: Corn: 90 - 400 L/acre; Potatoes: 90 - 660 L/acre.
Application Tips
Do not apply more than 4 applications per season.
How it Works
Systemic insecticide: Stomach poison.
Restrictions
Grazing
:
Do not feed trimmings to livestock or allow animals to graze on treated areas. Do not feed corn fodder or
forage from treated crop to livestock.
Pre-harvest Intervals
:
Do not apply within 21 days of harvest.
Re-entry
:
Do not re-enter treated corn fields for 5 days. Do not re-enter treated potato fields for at least 24 hours. See
label for more details on entering treated fields.
Environmental Precautions
Orthene is toxic to aquatic organisms. Do not apply to any body of water. Orthene is also toxic to birds and
mammals. Observe buffer zones as specified on the label.
Leaching
:
Orthene has a potential to leach through soil to groundwater. The use of this product may result in
contamination of groundwater particularly in areas where soils are permeable (e.g. sandy soil) and/or where the depth
to the water table is shallow.
Toxicity
Moderate acute mammalian toxicity. Acute oral LD
50
(
rats) = 605 - 1,100 mg/kg. Toxic to bees.
Storage
Store in cool, dry place. Protect from excessive heat.