Guide to Weed Control in Ontario

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Publication 75 covers herbicides for outdoor ornamentals and non-crop areas outside the greenhouse.

Ontario’s latest Guide to Weed Control is now available as a free PDF from OMAFRA.  Chapter 16 covers weed control in outdoor ornamentals, and includes effectiveness ratings for registered products.  This publication may also be useful for cleaning up weeds outside the greenhouse.

Note that the only herbicides currently registered for use INSIDE the greenhouse are EcoClear and Munger.  Both are acetic acid-based products appropriate for the control of broadleaf and grass weeds.

A hardcopy of the guide (Publication 75) can be ordered from OMAFRA here for a nominal fee.

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