OPM Termite Practice Exam

What is a crucial factor for the effectiveness of application systems?

1. Use of low pressure

2. High temperature application

3. Application in the evening

4. Using multiple chemical types

The correct answer is: Use of low pressure

The effectiveness of application systems is significantly influenced by the pressure at which the chemicals are applied. Using low pressure can be crucial, as it allows for more targeted distribution of the chemical, minimizing drift and improving penetration into the areas where pests are likely to inhabit. This careful application helps ensure that the active ingredients reach the intended pests more effectively and reduces the risk of harming non-target organisms or the environment nearby. In contrast, high pressure could lead to overspray, evaporation, or drift, which would reduce the effectiveness of the application and increase the potential for unintended exposure to surrounding areas. Additionally, specific timing or environmental factors, such as applying in the evening or the use of multiple chemical types, can affect application outcomes but do not directly address the mechanics of how the chemical reaches its target, making low pressure a more critical factor.