Preharvest Spray Additives

Surfactants are commonly used to reduce surface tension, allowing spray droplets to spread more evenly across plant surfaces for better coverage. Adjuvants work to enhance the absorption and penetration of active ingredients, ensuring that chemicals reach their target within the plant or pest. Drift control agents are crucial for minimizing off-target movement of sprays caused by wind, which helps reduce chemical waste and protects surrounding areas. Anti-foaming agents are added to prevent excessive foaming during tank mixing, which ensures a uniform and consistent spray solution.

Other additives, such as pH buffers and water conditioners, are used to stabilize the spray solution by adjusting pH or neutralizing hard water ions like calcium and magnesium, which can reduce the effectiveness of certain chemicals. Stickers and penetrants improve the adhesion of sprays to plant surfaces and facilitate deeper absorption through the cuticle, enhancing the efficacy of systemic products. When used correctly, these additives significantly improve the precision and effectiveness of agricultural spray applications.