Be Export Ready: Know pre-harvest Intervals and follow product registrations

Considering pre-harvest weed control, desiccation or late insect and disease control? Then look at the pre-harvest interval (PHI) of a product before spraying. PHI is the number of days that the crop should not be harvested after application of a pesticide. Harvest means cutting or swathing. If the crop is harvested before the indicated interval has elapsed, there could be unacceptable pesticide residues in or on the harvested seeds.

Pre-harvest intervals are listed on the labels of pesticides and under the “Restrictions” section of individual product descriptions in the provincial guide to crop protection. Click your province for a link to your guide: Alberta Saskatchewan Manitoba

Always be Export Ready: Ensure the product is registered for the intended use and registered to be used on the crop at that stage.