What can happen if spraying occurs in high temperatures?

Spraying pesticides in high temperatures presents significant risks to both the applicator and the plants being treated. At elevated temperatures, the volatility of many pesticides increases. This means that the materials can quickly evaporate into the air, leading to a higher likelihood of inhalation by the applicator and increased exposure to individuals nearby. Additionally, high temperatures can stress plants, making them more susceptible to damage from pesticide applications. The combination of higher evaporation rates and potential phytotoxicity can lead to ineffective pest control and harm to beneficial insects and plants.

In contrast, while high temperatures can sometimes result in enhanced penetration of pesticides, this does not outweigh the hazards posed to the applicator's health and the welfare of the plants. Other considerations like increased evaporation rates, which may affect the effectiveness of the pesticide, and better rain prevention don’t capture the overall health and safety issues involved with applying pesticides under such conditions.