Which conditions are favorable for thermal fogging and ULV treatments?

The conditions that support effective thermal fogging and Ultra-Low Volume (ULV) treatments primarily involve weather that promotes optimal dispersion and effectiveness of insecticides. Clear, calm, and warm conditions allow for the pesticide to be effectively deployed and to settle where needed to combat mosquito populations.

Not raining minimizes the risk of the insecticide being washed away before it can have an effect. Wind below 10 mph is crucial as it prevents the insecticide from dispersing too widely or being blown off target, ensuring that it reaches the intended areas where mosquitoes are present. Additionally, temperatures above 55 degrees provide an environment that can enhance the effectiveness of the treatment.

In contrast, heavy rain and high winds can disrupt the application process, while cooler temperatures can reduce the volatility of the insecticides, leading to decreased efficacy. Thus, the combination of staying dry, having minimal wind, and being within a warmer temperature range forms the most favorable conditions for carrying out thermal fogging and ULV treatments.