Texas Pesticide Applicator Practice Exam

When is the best time to add pesticide to the spray tank?

1. Well in advance of application

2. Immediately before application

3. After the tank is half full

4. When there's a high wind

The correct answer is: Immediately before application

The best time to add pesticide to the spray tank is immediately before application. This practice ensures that the pesticide remains effective and reduces the risk of degradation or settling that can occur over time. Adding pesticide just before use helps in maintaining the desired concentration and efficacy of the solution, thus improving the performance of the application. Preventing pesticide degradation is crucial because some compounds can lose potency if exposed to light, heat, or air for extended periods. Immediate addition also minimizes the chances of accidents or miscalculations regarding the amount needed, as the operator can accurately measure and apply the right dosage based on current needs. Timing the mixing of pesticide with the tank preparation ensures that everything is fresh and at the correct concentration for optimal application effectiveness.