Herbicide Recommendations for Garlic: Soil Applied Grass and Broadleaf Herbicides

Table of Contents

1. Dacthal
2. Devrinol
3. Vegetable Herbicide Weed Control Ratings (Table 13-1) (PDF file - 86Kb)
   • Annual Grasses
   • Broadleaf Weeds
   • Perennial Weeds
4. Other Garlic Weed Control Recommendations
• Postemergence Grass Herbicides
• Postemergence Broadleaf Herbicides
5. Related Links

Precautions

• PRE.
• Apply at a rate of 9 to 13.5 kg/ha (3.6 to 5.4 kg/ac) on light sand or sandy loam soils.
• Apply at a rate of 11 to 15.5 kg/ha (4.4 to 6.2 kg/ac) on medium silt loam soils.
• Apply at a rate of 18 kg/ha (7.2 kg/ac) on heavy clay soils.
• Do NOT use on muck soils.
• Apply in 250 L/ha (100 L/ac) of water.
• Apply immediately after seeding or directly over transplants, preemergence to the weeds.
• If weeds have emerged, cultivate the soil before application.
• Rainfall or irrigation (about 1 cm) is necessary for activation.

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Precautions

• PRE - One application per year only, prior to crop and weed emergence.
• Use the lower rate on light soils (coarse textured to sandy and sandy loam).
• Do NOT apply closer than 60 days to harvest.
• Damage to subsequent crops and cover crops can be reduced by tillage across the rows after harvest. Small grains seeded in the fall may be stunted but not otherwise affected.

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Related Links

• Weeds in Ontario
• Root Crop 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

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