Commodity Fumigation License Practice Exam

Which of the following can be a result of fumigating below 40°F?

1. Increased effectiveness

2. Fumigation failure

3. Reduced pest populations

4. Enhanced gas penetration

The correct answer is: Fumigation failure

When fumigating below 40°F, one of the primary concerns is that lower temperatures can significantly hinder the effectiveness of the fumigant. Many fumigants require a certain temperature range to volatilize properly and penetrate the targeted material or area effectively. At temperatures below 40°F, the activity and metabolism of pests are typically reduced, which can lead to a situation where the fumigant does not work as intended. The pests may not be sufficiently affected or killed, resulting in a fumigation failure. Proper temperatures are crucial for achieving the desired pest control outcomes, and this is why fumigating at lower temperatures can compromise the entire fumigation process.