What is the purpose of using hollow cone or flat fan nozzles in aerial applications?

Prepare for the Ohio Aquatic Pest Control Test with comprehensive study materials including flashcards and multiple choice questions. Each question features hints and explanations to ensure exam success!

The use of hollow cone or flat fan nozzles in aerial applications primarily involves improving coverage with a smaller spray volume. These nozzle types are designed to create a fine spray pattern, which helps in distributing the pesticide evenly over the target area. By achieving more uniform coverage, these nozzles can efficiently coat the surfaces of plants or aquatic environments, ensuring that the pest control product reaches all necessary areas to be effective.

Hollow cone nozzles produce a conical spray pattern that is useful for providing thorough coverage of both the upper and lower surfaces of leaves, essential for many applications. Flat fan nozzles, on the other hand, offer broad coverage and can effectively deliver spray over a wide swath, making them ideal for large areas.

In the context of the other choices, while increasing droplet size may enhance penetration, it typically does not align with the goal of using these specific nozzle types, which focus on coverage rather than penetration depth. Reducing the amount of herbicide needed and ensuring uniform dispersal across large areas are also relevant goals, but they relate more to the efficiency and distribution capacity of the spray rather than the core function provided by the hollow cone and flat fan nozzles specifically aimed at maximizing coverage with reduced volume.

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