At what temperature is it wise to stop spraying foliage of crops and plants?

The most prudent choice is to stop spraying foliage of crops and plants at a temperature of 85 degrees. When temperatures rise above this threshold, it can create conditions that increase the risk of damage to plants and reduce the effectiveness of the pesticide being applied. Higher temperatures can lead to rapid evaporation of the spray solution, which may prevent the active ingredients from properly adhering to the target surfaces. Additionally, plants may experience stress at elevated temperatures, making them more susceptible to phytotoxicity, where the pesticide can cause unintended harm to the plants.

Pesticides also have specific temperature ranges for optimal efficacy, and exceeding those limits can compromise the intended results. Therefore, applying pesticides above 85 degrees can not only jeopardize the health of the plants but also lead to inefficient pest control. It is essential for applicators to monitor environmental conditions closely and adjust their practices accordingly to ensure both plant health and effective pest management.