BPH controllers are a type of insecticide that is used to control sucking insects. They are often used in the horticultural industry to protect crops from sucking insects such as aphids and leafhoppers. The most common types of BPH controllers are pyrethroids, which are neurotoxic insecticides that act on the nervous system of insects and kill them.
Some BPH controllers also have systemic properties, meaning they can be absorbed into the plant’s tissues and transported throughout its system. This can protect the plant from pests for up to six months after application.