Why should equipment be thoroughly cleaned between uses?

• A. To prevent cross-contamination
• B. To speed up the next spray
• C. To change label color
• D. To reduce water usage

Answer: (A)

Preventing cross-contamination is the main reason to thoroughly clean equipment between uses. Residues from a previous pesticide can stay in the tank, hoses, or nozzles and mix with the next product or be sprayed onto a crop that shouldn’t receive it. Even small amounts can cause crop injury, reduce efficacy, or lead to regulatory violations and environmental or worker safety concerns. Cleaning should follow label directions, typically by flushing with clean water and using an appropriate cleaner as needed, then rinsing until the rinse water runs clear. This practice helps ensure accurate product placement and rates for each use. The other options aren’t the purpose of cleaning—it's not about speeding the spray, changing label color, or saving water.