What conditions make early morning or evening a good time for pesticide application?

Early morning or evening is considered a good time for pesticide application due to lower wind speeds and higher humidity typically present during these periods. Lower wind speeds reduce the likelihood of pesticide drift, which is when chemicals are carried away from the target area, potentially affecting non-target plants, animals, and humans. With higher humidity, the absorption of the pesticide can be more effective, as moisture in the air can help to keep pesticides on the target surface longer, enhancing their efficacy.

Additionally, applying pesticides during these times often minimizes the risk of evaporation, which can occur in hotter temperatures due to increased sunlight. This helps ensure that the pesticide remains effective for a longer duration, allowing for better control of pests. The combined effect of these conditions helps in achieving optimal results from the pesticide application, making early morning or evening the preferred times for such activities.