78
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
Atrazine
Group 5
Formulation
Product
Company
Active ingredient
Formulation
Container size
Aatrex Liquid 480 (PCP# 18450)
Syngenta
Atrazine 480 g/L
Liquid suspension
1
x 14 L
Crops and Staging
Timing
Rate
Crop
Pre-plant incorporated
Light and sand: 0. 85 - 1.25 L/acre
Loam and clay: 1.25 L/acre
0.85 - 1.25
L/acre plus 6.88L/acre corn
oil or 1.11 - 2.23 XA Oil concentrate
Silage corn (9.0)
Field corn Sweet corn (8.6)
Pre-emergence*
Post-emergence (1 - 6 leaf stage)
*
Rainfall is required within 10 days or a shallow cultivation will be necessary.
Note:
For pre-plant incorporated and pre-emergence application, nitrogen solutions or complete liquid fertilizers
may replace the water as a carrier. Do not apply after the corn has emerged, as there is danger of liquid fertilizer
causing crop injury.
Weeds Controlled
annual smartweed
common purslane
lady’s-thumb
lamb’s-quarters
ragweed
redroot pigweed
volunteer clover
wild oats
wild buckwheat
wormseed mustard
wild mustard
Registered Tank Mixes
Fertilizers
:
For pre-plant incorporated and pre-emergence application, nitrogen solutions or complete liquid
fertilizers may replace the water as a carrier. Do not apply after the corn has emerged as there is danger of liquid
fertilizer causing crop injury.
Many dry bulk granular fertilizers may be impregnated with Aatrex or Aatrex plus Dual II Magnum or Eradicane 8E
as a pre-plant incorporated application to control weeds in corn.
Oil-water emulsions (post-emergent treatment)
:
Atrazine 480.
Pre-plant-incorporated
:
Aatrex Liquid 480 (0. 85 - 1.25 L/acre + DUAL II Magnum (0.5 - 0.7 L/acre).
Application Tips
Continuous gentle agitation is needed. Avoid excessive agitation, especially with oil mixtures, as a grease-like mass
may form. Use oil mixes at once and clean tank and system with a strong detergent solution. Use 50 mesh or larger
strainers and use only metal filters. Bypass line should discharge to bottom of tank. Band treatments are desirable
when cultivation is to alleviate hard soil conditions or to control annual weeds.
How it Works
A systemic herbicide absorbed through both roots and foliage and it is translocated to the leaves where it inhibits
photosynthesis.
Expected Results
Affected plants are slow to emerge and are wilted, yellowish and eventually turn brown and die. Poor weed
control may be expected if improper incorporation is done, or when post-emergent application is made without oil
concentrate or sprayed too late. Heavy rainfall on sandy soils may cause leaching and a decrease in weed control and/
or crop injury.