Turf Pest Management Category 3B Practice Test

For dollar spot control, why is thorough coverage important?

To ensure contact with leaf surfaces To reduce watering needs To relax application timing To decrease accuracy

Correct Answer:

To ensure contact with leaf surfaces

Explanation:

Thorough coverage matters because dollar spot fungi live on and immediately above the leaf surface, so the fungicide must actually contact the leaf blades to be effective. When spray covers all the turf, every blade gets protected, forming a consistent barrier that prevents infection and reduces the chance of untreated pockets where the disease can start and spread. If some areas are missed or canopy density causes poor coverage, those untreated spots can become infection centers and undermine control. The other options aren’t relevant factors for why coverage is important—coverage doesn’t change watering needs, application timing, or accuracy in this context.

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