Introduction

357
Reward
Herbicide Group
22 - diquat
(Refer to page 44)
Company:
Syngenta Canada, distributed by Univar Environmental (PCP#26271)
Formulation:
240 g/L diquat formulated as a solution.
• Container size: 4 x 3.78 L
Use:
For use in farm dugouts and other clear, slow moving water bodies to control water weeds, such as:
º Canada water weed
º Coontail
º Duckweed
º Flowering rush
º Pond weeds º Water milfoil
Weed Control
Offers temporary control of certain species of algae.
High levels of suspended organic matter or clay particles in water will reduce control.
NOTE: A permit must be obtained from Saskatchewan Water Security Agency or Manitoba Sustainable Development for
application of pesticides directly to or within a set distance of water bodies that are not wholly contained within a private
parcel of land.
Timing:
Mid-May through late June when water weeds or algae are actively growing. Apply before weeds have developed a heavy
mat of growth for effective control.
Rates:
Dugouts less than 5 feet (1.5 m) deep: Apply Reward at 7.4 L per acre.
• At this rate, 2.2 L of Reward will treat a dugout that is 160 feet by 80 feet (49 m x 24.4 m).
Dugouts more than 5 feet (1.5 m) deep: Apply Reward at 10.1 to 11.8 L per acre.
• At these rates, a dugout that is 160 feet by 80 feet (49 m x 24.4 m) will require 3.0 to 3.5 L of Reward. Milfoil can be
controlled in early stages by 3.7 L per acre in early stages of growth.
Application:
• Dilute 1 part Reward with 4 parts clean water.
• Spray over the water surface, inject below the water surface or pour directly onto the water surface from a moving
boat or for small water bodies, apply from the banks. See label for detailed instructions. Note: Reward is bound rapidly
to soil, so material must enter the water directly to be effective.
How it Works:
Refer to Table 9 on page 48.
Restrictions:
• Grazing Restrictions: DO NOT use water for animal consumption for 24 hours after application.
• Irrigation: DO NOT use water for irrigation for 5 days after application.
• Domestic Use: DO NOT use water for human consumption for 5 days after application. DO NOT swim in water for
24 hours after treatment.
• Storage: DO NOT freeze.
• Environment: If weed growth is dense, protect fish by not treating more than one-fourth of dugout at a time.