When do I apply herbicide?

Effective Weed Control for Your Lawn: A Two-Application Approach

 

First Application: Early Season (May-June)

The first application should occur early in the season, ideally between May and June. It’s crucial to apply the herbicide generously and carefully, targeting all visible weeds. The earlier you spray, the better, as weeds absorb herbicides more efficiently during their active growth phase.

Second Application: Fall (When Temperatures Drop Below 15°C)

The second application should take place in early fall when temperatures fall below 15°C. This is the ideal time to target weeds like dandelions. During the fall, many weed seeds, including dandelions, are germinating. Dandelions also shed their leaves to conserve water and nutrients, and they transfer sugars from the leaves to their roots for winter storage.

By spraying at this time, the herbicide will be absorbed along with the sugars and transported down to the roots. This ensures that the herbicide reaches and destroys the long taproots, leading to the effective eradication of dandelions etc.