Vermont Pest Control Practice Test

Pesticide persistence is about how long the chemical remains active at a site, which is governed by degradation processes. Temperature can speed up chemical reactions and microbial activity, moisture supports hydrolysis and microbial degradation, and UV exposure breaking down compounds through photodegradation directly reduces how long the product lasts. Wind speed, on the other hand, mainly affects how far and how quickly the pesticide moves away from the application site (drift and volatilization) rather than how fast it degrades. So wind speed isn’t considered a factor that influences persistence.