Which of the following is NOT a management practice for preventing pesticide contamination?

Frequent application is not a management practice aimed at preventing pesticide contamination. In fact, applying pesticides more often than necessary can increase the risk of runoff, leakage, and unintended exposure to non-target areas, thereby heightening the chances of contamination.

Proper storage, soil testing, and establishing buffer zones are all practices that help minimize the risk of pesticide contamination. Proper storage ensures that pesticides are kept securely and under conditions that prevent spills or leaks. Soil testing helps determine the appropriate types and amounts of pesticides needed, reducing excess application. Establishing buffer zones creates physical barriers that help protect surrounding environments from pesticide drift and runoff. Therefore, frequent application stands out as a practice that does not align with the goals of preventing contamination.