Potatoes in Canada

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2019 Guide to Weed Control for Hort Crops published

Ontario’s Ministry of Agriculture, Food and Rural Affairs (OMAFRA) released its Guide to Weed Control for Hort Corp for 2019. The guide is now available online.


February 21, 2019
By Potatoes in Canada

The publication lists herbicide treatment rates and precautions for various vegetable crops, including potatoes.

The Guide states that the best weed management system for potato uses a combination of chemical weed control with cultivation and other techniques. Cultivation prior to potato emergence, using various kinds of cultivation equipment (light harrows, finger weeders, hillers, etc.), will control the early flush of weeds.

The Guide also recommends potato producers minimize the root pruning of the crop and warns that if the crop is hilled after the application of herbicides, untreated soil will surface and another flush of weeds may result.

Information on products and rates of application of potato vine killing can be found on OMAFRA’s Vegetable Crop Protection Guide and is a separate publication. OMAFRA recommends following the product label in addition to consulting the guides.