MDARD Michigan Core Pesticide Applicator Practice Exam

Which statement about granular applicators is true?

1. Ground speed has no effect on the application rate

2. In a rotary spreader, lighter granules are thrown farther than heavier ones

3. Drop spreaders are superior to rotary spreaders when more precise placement of the pesticide is desired

4. Granular applicators can only be used for large areas

The correct answer is: Drop spreaders are superior to rotary spreaders when more precise placement of the pesticide is desired

The statement that drop spreaders are superior to rotary spreaders when more precise placement of the pesticide is desired is accurate. Drop spreaders apply granules directly beneath the spreader, allowing for more control over the distribution pattern. This is particularly beneficial in situations where accuracy is crucial, such as near flower beds, gardens, or other sensitive areas where you want to avoid overspreading pesticides. In contrast, rotary spreaders fling granules outward in a circular pattern, which can lead to less precision, especially if wind is a factor or if the spreader is not calibrated properly. Therefore, when it comes to the need for exact placement to prevent overlapping or misapplication, drop spreaders are indeed more effective than rotary spreaders. Understanding the functioning and application methods of different types of spreaders is essential for effective pest management and minimizing environmental impacts in applying pesticides.