MDARD Michigan Core Pesticide Applicator Practice Exam

Which management practice can help prevent pesticide contamination of water sources?

1. Using only oil-soluble pesticides

2. Following Integrated Pest Management (IPM) principles

3. Applying pesticides regardless of weather conditions

4. Using highly persistent pesticides

The correct answer is: Following Integrated Pest Management (IPM) principles

Following Integrated Pest Management (IPM) principles is an effective management practice that helps prevent pesticide contamination of water sources for several reasons. IPM emphasizes a holistic approach to pest control that reduces reliance on chemical pesticides by integrating various management techniques. These techniques often include the use of biological control agents, habitat manipulation, cultural practices, and pest monitoring to make informed decisions. By promoting careful planning and environmental considerations, IPM encourages applicators to assess the potential risks of pesticide application to water bodies, taking into account factors like runoff and leaching. This thorough evaluation ensures that pesticides are applied only when necessary and in ways that minimize the potential for water contamination. Moreover, IPM fosters the use of less harmful products and methods, rather than defaulting to high-use pesticides. In contrast, the other options suggest practices that could increase the risk of contamination. For instance, using only oil-soluble pesticides could result in higher chance of runoff into water systems as these may not break down easily in aquatic environments. Applying pesticides regardless of weather conditions could lead to increased drift and runoff, enhancing water contamination risk. Finally, using highly persistent pesticides may pose long-term contamination threats as they can remain in the environment and accumulate in water sources.