Please think about your neighbours and their plants and crops.

Timing of Spraying

Members who choose to use weed-killing sprays are asked to be thoughtful about when they use their spray.

(1) Choose the best day and time of day for safety in weed killer application. Mornings and evenings are usually better times of day for weed killer application;

(2) Never apply herbicides when it's windy and stop if the wind picks up. Choose a still day in the growing season.

(3) Much of the danger of herbicides use comes from breezy days that cause particle drift.

(4) Remember many weedkillers are at their least effective outside the growing season or in the cold.

Weather Timing

For the best results, most weed killers work best when the application of the herbicide occurs during several days of dry weather. Otherwise, rainwater can rinse the herbicide from the surfaces that you need to treat. Additionally, any residual effects of an herbicide will get diluted by the rain, sometimes to the point of inefficacy. Another weather-timing situation to factor in is wind, specifically when applying glyphosate or similar non-selective herbicides that kills all plants — including desirable vegetation, such as your flowers or vegetables. Windy conditions can create herbicide drift, distributing the chemicals onto other areas of your landscape and killing your desirable plants.