Structural Pest Control Applicator Practice Exam

What is the best way to clean a washing machine after laundering pesticide-soiled clothing?

1. Run a rinse cycle only

2. Clean the inside of the machine by hand

3. Run a complete, but empty cycle using hot water and detergent

4. Use vinegar and baking soda to deodorize

The correct answer is: Run a complete, but empty cycle using hot water and detergent

Running a complete, but empty cycle using hot water and detergent is the most effective method for cleaning a washing machine after laundering pesticide-soiled clothing. This approach ensures that any residual pesticides that may have adhered to the drum or components of the washing machine are thoroughly removed. The high temperature of the water helps to break down any chemical residues, while the detergent acts to emulsify and wash away contaminants. In contrast, simply running a rinse cycle would not be sufficient, as it may not effectively eliminate all traces of pesticides that might be present in the machine. Cleaning by hand could miss areas where residues may accumulate, and using vinegar and baking soda, while useful for deodorizing, does not guarantee the removal of pesticide residues. Therefore, the method of running a full cycle with hot water and detergent is the most reliable option for ensuring that the washing machine is free from harmful pesticides, thus safeguarding future laundry loads.