Using pesticides in Ontario

Learn about pesticide classification, sale and use, and the allowable list of pesticides

Pesticide licences and permits

Get, renew, replace or update information on an exterminator, operator or vendor licence to sell or apply pesticides in Ontario

Pesticides training and certification

Training and certification that you need to sell, buy, transfer or use certain pesticides in Ontario

Pesticides and golf courses

The rules for the use pesticides on golf courses

Report a spill

Call 416-325-3000 or 1-800-268-6060 (toll-free) to report spills of pollutants (e.g. pesticides, chemicals).


Farmer certification and training

The certification or training you will need to buy or use pesticides on your farm

Rules for greenhouse operators

The environmental rules you need to follow to operate a greenhouse in Ontario

Nutrient management on farms

Rules for applying manure and fertilizers

Weeds in Ontario

Weed management for farms

Weeds and herbicides (Ontario CropIPM)

Information about scouting for and identifying weeds that can cause large yield losses

Neonicotinoid rules for growers

What growers need to know before they can purchase and use neonicotinoid-treated corn and soybean seeds

Neonicotinoid rules for vendors

What vendors need to know before they can sell neonicotinoid-treated corn and soybean seeds


Natural ways to manage pests in home gardens

Low risk and alternative pesticides for gardeners

Pesticides in home lawns and gardens

Pesticides for cosmetic purposes on lawns and gardens, how to properly dispose of pesticides and how to report the illegal use of banned products