Herbicide Recommendations for Highbush Blueberries (Established Plantings): Postemergence Broadleaf Herbicides

Table of Contents

1. Introduction
2. Aim EC + Agral 90 or Ag-Surf or + Merge
3. Basagran + Assist
4. Lontrel
5. Cane and Bush Berries Herbicide Ratings:
   from Tree Fruit Herbicide Rating Tables (Table 15-1) (PDF 110k)
   • Annual Grasses
   • Annual Broadleaf Weeds
   • Perennial Weeds
6. Other Highbush Blueberry Weed Control Recommendations
   • Year of Planting
     • Soil Applied Grass and Broadleaf Herbicides
     • Postemergence Grass Herbicides
     • Postemergence Broadleaf Herbicides
     • Postemergence Grass and Broadleaf Herbicides
   • Established Planting
     • Soil Applied Grass and Broadleaf Herbicides
     • Postemergence Grass Herbicides
     • Postemergence Grass and Broadleaf Herbicides
7. Related Links

Introduction

Postemergence - Leaf stage of the weeds is critical for good weed control. Smaller weeds are generally easier to kill but there needs to be enough leaf surface to intercept the herbicide. Apply according to recommended leaf stages. Crop stage is important to optimize crop safety. Adjuvants will frequently improve the weed control when used as directed. Weather or other conditions may influence the optimum rate of adjuvant, see the product label for more details. Always use appropriate drift management technology.

| Top of Page |

Precautions

• Apply POST with a HOODED SPRAYER between the rows or between the plastic mulch.
• Apply to actively growing weed up to 10 cm tall.
• Apply in a minimum of 100 L/ha (40 L/ac) water.
• Do NOT apply closer than 1 day to harvest.
• Apply ONLY once per growing season
• Aim EC may cause crop injury if the spray is allowed to come in contact with the green stem, leaves, bloom or fruit.
  

| Top of Page |

Precautions

• For top growth control of yellow nut sedge.
• Make 2 applications 7-10 days apart, when weeds are small.
• Do NOT apply more than 2 times per year.
• Do NOT apply closer than 25 days to harvest.

| Top of Page |

Precautions

• Apply once per year, directed under the bushes on emerged weeds.
• For emerged vetch, use 0.42 L/ha.
• For red and white clover, use 0.83 L/ha.
• Do NOT apply closer than 45 days to harvest.

| Top of Page |

Related Links

• Weeds in Ontario
• Berries in Ontario
• Problem Weed Control in Field Crops
• Integrated Pest Management (IPM)
• Pesticide Application and Safety
• Pesticide Companies and Agents
• OMAFRA Sprayer Calibration Calculator
• Search the PMRA website
• OMAFRA Publication 505: Ontario Weeds
• OMAFRA Publication 75: Guide To Weed Control

| Top of Page |