What is required for applications performed within 30 meters of an open body of water?

• A. The applicator must ensure that no more than 30% of vegetation is sprayed in the zone 5-10 meters from the water.
• B. All vegetation within 30 meters must be sprayed.
• C. No vegetation is allowed to be sprayed anywhere near water.
• D. Only pesticide formulations approved for aquatic use may be used.

Answer: (A)

Buffer zones around open bodies of water are used to protect water quality by limiting how pesticides can be applied near the edge. The rule focuses on the strip closest to the water: in the zone from 5 to 10 meters from the water, you may not spray everything. The requirement specifies that no more than 30% of vegetation in that 5–10 meter band can be sprayed when you are within 30 meters of the water. This creates a safety margin to reduce drift and runoff into the water while still allowing some targeted control near the water.

The rest of the 30-meter area can be sprayed under normal guidelines, as long as you follow label directions and drift precautions. The other options don’t fit because spraying all vegetation right next to the water would exceed the protective limit, a blanket prohibition is too strict given the partial-coverage allowance, and relying only on aquatic-use formulations doesn’t address the specific near-water coverage limit.