Introduction

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Formulation Characteristics:
Formulation Risk of Vapour Drift Activity on Weeds Risk of Crop Injury
LV Ester Medium Fast Medium
Amine Very Low Medium Low
Salts Very Low Slow Very Low
Weeds, Rates and Staging:
Apply at lower rates when weeds are small (2 to 4 leaf stage) and actively growing. Higher rates are needed when weeds are
larger, in heavy populations, or growing under stressful conditions (excessively cold, hot, dry or wet).
NOTE: The following rates are a general range for all products. Rate ranges for individual products may differ slightly.
Consult the product label for specific rates for each application.
+ Not controlled by MCPA K salt formulation
++ Not controlled by MCPA K or Na salt formulations
Susceptible weeds:
• Amine 500 formulations – 0.28 to 0.45 L per acre
• Amine and Ester 600 formulations – 0.24 to 0.36 L per acre
• K formulations – 0.61 to 0.71 L per acre.
• Na formulations – 0.5 to 0.81 L per acre.
º Burdock
º Cocklebur
º Flixweed (late fall
applications or small
seedlings)*
º Kochia
º Lamb’s-quarters
º Mustards (except
dog and tansy)
º Prickly lettuce+
Harder to control weeds:
• Amine 500 formulations – 0.45 to 0.71 L per acre.
• Ester 600 formulations – 0.42 to 0.61 L per acre.
• K formulations – 0.71 to 0.81 L per acre.
• Na formulations – 0.81 to 1.1 L per acre.
º Annual sow-thistle+
º Biennial
wormwood+
º Bluebur+
º Common
peppergrass+
º Curled dock+
º Flixweed
(overwintered
rosettes prior to
bolting)+
º Goat’s-beard+
Top growth control only (rates as for harder to control weeds):
º Blue lettuce+
º Canada thistle
º Bindweed (field,
º Corn spurry++
hedge)+
º Dandelion++
º Ragweed
º Russian pigweed
º Shepherd’s-purse*
º Stinkweed*
º Wild Radish
º Goosefoot+
º Hemp-nettle
(suppression only)
º Mustard (including
dog, tansy and
tumble)+
º Gumweed+
º Field horsetail++
º Hoary cress+
º Wild Sunflower+
º Plantain+
º Purslane+
º Redroot pigweed+
º Smartweed
(annual)+
º Leafy spurge+
º Perennial sow-thistle+
º Russian thistle++
Weed Control
Application Information:
• Water Volumes:
º Cereals, flax, pastures, forage grasses: 40 to 81 L per acre. Peas: Minimum 61 L per acre.
º Cereals Underseeded to Forage Legumes: 61 to 81 L per acre.
• Nozzles and Pressure: Maximum 40 psi (275 kPa) when using conventional flat fan nozzles. Low drift nozzles may
require higher pressures for proper performance. Use nozzles and pressure designed to deliver thorough, even
coverage with ASABE coarse droplets.