How are granules or pellets applied to aquatic plants?

Granules or pellets are specifically designed for aquatic applications, and their method of deployment is crucial for effective treatment of aquatic plants. When applied by broadcasting them over the area, they are able to sink to the bottom, where they can effectively reach the target plants. This method allows for the product to settle at the base of the aquatic environment where many invasive or unwanted plants are rooted, ensuring that the treatment is concentrated where it is needed most.

The sinking action of these granules is essential because it allows for better contact with the plants, thereby increasing the likelihood that the active ingredients will be absorbed effectively. As they dissolve or disperse in the water, they provide prolonged effectiveness against the targeted aquatic vegetation.

Other methods listed, such as spraying on the surface of the water or applying only on dry land, do not provide the targeted delivery necessary for efficacy in treating submerged or floating plants. Similarly, using a helicopter is not a standard practice due to the potential for uneven application and environmental disturbances. Therefore, broadcasting the granules to allow them to sink is the preferred method for treating aquatic plants effectively.