Protective chemical treatments (protectants) are typically applied at what stage?

• A. Before infestation
• B. After infestation
• C. During infestation
• D. After pruning

Answer: (A)

Protectants are preventative treatments designed to be applied before pests or diseases attack. They create a protective barrier on plant surfaces that can deter feeding or block infection as pests attempt to establish themselves. Because their purpose is to prevent an attack, they work best when applied before infestation occurs. Once pests are already present, a protectant typically won’t halt the problem, and other control methods are needed. Weather can affect protectants, so timing and reapplication may be important. Applying after pruning isn’t about preventing an infestation stage, and using a protectant during an active infestation isn’t effective.