Highbush Blueberries - Established Plantings: Postemergence Broadleaf Herbicides
Excerpt from 2010-2011 Chapter 14, Publication 75, Guide to Weed Control, Order this publication
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Table
of Contents| Trade Name |
+ Agral
90
|
or Ag-Surf
|
or Merge
|
|
|---|---|---|---|---|
| Active Ingredient |
carfentrazone-ethyl
|
+ non-ionic surfactant
|
+ non-ionic surfactant
|
or surfactant/solvent
|
| Formulation |
240 g/ L
|
|
|
|
| Rate per hectare (active) |
8.8 - 28.1 g/ha
|
0.25 % v/v
|
0.25 % v/v
|
0.1 % v/v
|
| Rate per hectare (product) |
36.5 - 117 mL/ha
|
2.5 L/1,000 L
|
2.5 L/1,000 L
|
1 L/1,000 L
|
| Rate per acre (product) |
14.8 - 47mL/ac
|
2.5 L/1,000L
|
2.5 L/1,000L
|
1 L/1,000L
|
Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).
- New and established plantings.
- Apply POST with a HOODED SPRAYER between the rows or between the plastic mulch.
- Apply to actively growing weeds 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.
| Trade Name | Basagran | + Assist |
|---|---|---|
| Active Ingredient |
bentazon
|
+ oil concentrate
|
| Formulation |
|
|
| Rate per hectare (active) |
0.84 kg/ha
|
0.5 % v/v
|
| Rate per hectare (product) |
1.75 L/ha
|
5 L/1,000L
|
| Rate per acre (product) |
0.7 L/ac
|
5 L/1,000L
|
Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).
- Established plantings ONLY.
- 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.
| Trade Name | |
|---|---|
| Active Ingredient | clopyralid |
| Formulation | 360 g/L |
| Rate per hectare (active) | 0.15 - 0.3 kg/ha |
| Rate per hectare (product) | 0.42 - 0.83 L/ha |
| Rate per acre (product) | 0.17 - 0.33 L/ac |
Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).
- New and established plantings.
- 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.
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
For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
| Author: | OMAFRA Staff |
|---|---|
| Creation Date: | 25 November 2002 |
| Last Reviewed: | 08 June 2010 |