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Herbicide Recommendations for Industrial Hemp Grown for Fibre Production: Postemergence Grass Herbicides

Author: OMAFRA Staff
Creation Date: 21 February 2006
Last Reviewed: 20 May 2008

Pub 75: Guide to Weed Control > Other Field Crops > Herbicide Recommendations for Industrial Hemp Grown for Fibre: Postemergence Grass Herbicides

Excerpt from 2008 Publication 75, Guide to Weed Control, Order this publication

Cover of Publication 75, Guide to Weed ControlTable of Contents

  1. Assure II + Sure-Mix
  2. Related Links

Assure II + Sure-Mix
Trade Name Assure II + Sure-Mix
Active Ingredient
quizalofop-p-ethyl
+ oil concentrate
Formulation
96 g/L
 
Rate per hectare (active)
0.036 to 0.07 kg/ha
0.5% v/v
Rate per hectare (product)
0.38 to 0.75 L/ha
5 L/1000 L
Rate per acre (product)
0.15 to 0.3 L/ac
5 L/1000 L

Precautions

  • Make one application per year. Apply to emerged annual grasses and volunteer grasses when the crop is at the 2-6 crop leaf stage (6-25 cm in height).
  • Use the 0.38 L/ha (0.15 L/ac) rate of Assure II for control of volunteer corn, volunteer cereals and green foxtail.
  • The 0.5 L/ha (0.2 L/ac) rate of Assure II will suppress quackgrass and also control barnyard grass.
  • Use the 0.75 L/ha (0.3 L/ac) rate of Assure II for control of quackgrass.
  • Use a minimum of 100 litres of water/ha with a spray pressure of 210-275 kPa.

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