234
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
Weed populations
Rate
Acres treated per 14 l jug
Medium infestation
1.4
L/acre
10
Heavy infestation
1.6
L/acre
8.9
Caution
:
Do not apply to soils with less than 1% or more than 10% organic matter.
Application Information
With
:
Apply with ground sprayers. Do not apply by air.
Water volume
: 60 - 120
L/acre.
Application Tips
For best results, apply Primextra II Magnum herbicide/fertilizer mixtures uniformly to the soil with properly
calibrated equipment immediately after blending and incorporate according to label directions.
How it Works
Absorbed by roots and inhibits photosynthesis.
Expected Results
Weeds die at germination, or under dry conditions, die back soon after emergence.
Restrictions
Rainfall
:
Moderate rainfall after application will enhance activity. Heavy rainfall reduces weed control.
Re-cropping
:
Follow corn with corn only.
Environmental Precautions
This product is toxic to non-target terrestrial plants and aquatic organisms. Use buffer zones to reduce the possibility
of drift or damage to sensitive aquatic and terrestrial habitats.
Runoff
:
Do not spray if surface runoff likely to occur.
Leaching
:
The use of this chemical may result in contamination of groundwater, particularly in areas where soils are
permeable (e.g., sand, loamy sand and sandy loam soils) and/or the depth to the water table is shallow.
Toxicity
Very low acute mammalian toxicity. Acute oral LD
50
(
rats) = atrazine 3,080 mg/kg, metolachlor = 2,780 mg/kg,
Primextra = 4,680 mg/kg. May cause severe skin irritation and perhaps eye injury. Low toxicity to fish and birds.
Intake may cause convulsions and coma.
Storage
Dry, heated storage preferred.
Princep Nine-T/Simazine 480
Group 5
Formulation
Product
Company
Active ingredient Formulation
Container size
Princep Nine T (PCP# 16370
Syngenta
Simazine: 90% Water dispersible granules
5
x 5 kg bags
Simazine (PCP# 23181)
Loveland Products
Canada
Simazine: 480 g/L Flowable
2
x 10 L
Primextra II Magnum (cont’d)