Table 4-6: Interval Before Rainfall (Postemergence)

Table of Contents

1. Introduction
2. Interval Before Rainfall (Postemergence) (Table 4-6) (PDF - 49 kb)
3. Other Tables on Herbicides and Adjuvants
   • Herbicides Used in Ontario (Table 4-1) (PDF file - 207 kb)
   • Glyphosate Products and Their Registered Uses (Table 4-2) (PDF file - 54 kb)
   • Herbicide Crop Rotation & Soil pH Restrictions (Field Crops) (Table 4-3) (PDF file - 80 kb)
   • Herbicide Crop Rotation & Soil pH Restrictions (Horticultural Crops) (Table 4-4) (PDF - 82 kb)
   • Herbicide Groupings for Ontario (Table 4-5) (PDF file - 23 kb)
   • Adjuvants Used in Ontario (Table 5-1) (PDF file 25 kb)
   • Adjuvant Rates per Sprayer Tank Water Volume (Table 5-2) (PDF file 11 kb)
4. Other topics on Notes on Herbicides and Adjuvants
   • Introduction
   • Notes on Herbicides: Active Ingredients
   • Notes on Herbicides: Trade Names
   • Notes on Adjuvants
5. Related Links

Introduction

Rainfall shortly after application of a postemergence herbicide may reduce the weed control. This effect will vary with the product, the formulation, the interval of time and the drying conditions between application and rainfall, as well as on the amount, intensity, and duration of rianfall, The following information is based on label information and additional detail supplied by the chemical industry. For further information, contact the manufacturer. In the case of a tank-mix, use the longest time interval of the products being considered.

¹ - Indicates herbicides sold as a co-pack under this trade name.

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Related Links

• Weeds in Ontario
• Pesticide Application and Safety
• Pesticide Companies and Agents
• OMAFRA Sprayer Calibration Calculator
• PMRA website
• OMAFRA Publication 505: Ontario Weeds
• OMAFRA Publication 75: Guide To Weed Control

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