Illinois Turf Pesticide Practice Test

Curative action is about stopping an infection after it has started. A curative fungicide works by killing the pathogen or halting its growth once it’s already inside the plant tissue, and it may move systemically to reach the infection site. Because it targets an active outbreak, its effectiveness depends on applying it soon after symptoms appear and before the disease has spread too far. This contrasts with preventives, which form a protective barrier and must be present before infection occurs. The other terms refer to how the product is applied or to unrelated practices, not to the ability to stop an existing infection.