When controlling diseases in plants, which nozzle type is primarily used?

The use of hollow cone and solid cone nozzles is primarily preferred when controlling diseases in plants due to their ability to create a fine mist or spray pattern that facilitates thorough coverage of foliage. This is essential for disease control, as many plant diseases, especially fungal infections, can be located on the leaves or stems.

Hollow cone nozzles produce a fine droplet size that allows the spray to penetrate the dense plant canopy, reaching surfaces that might otherwise be missed. This ensures that fungicides and other plant protectants make contact with the pathogen on the leaves, maximizing the effectiveness of the treatment. Solid cone nozzles also provide a good spray pattern for deeper penetration into the canopy, ensuring comprehensive coverage.

Other nozzle types, such as regular flat fan or even flat fan nozzles, generally produce a broader spray pattern that may not achieve the same level of penetration and coverage in dense foliage, making them less effective for disease management. Flooding fan nozzles are typically used for applications that require large volumes of liquid, which may not be practical for disease control as they can lead to oversaturation and runoff instead of targeting the foliage effectively.