What is the best insecticide for whiteflies?

The best insecticide for whiteflies is typically a systemic insecticide that targets both adult whiteflies and their larvae. Some effective options include neonicotinoids, such as imidacloprid, and insect growth regulators (IGRs), such as pyriproxyfen. These insecticides can be applied as a foliar spray or applied directly to the roots as a soil drench.

It is important to follow the instructions on the insecticide label carefully, as whiteflies can quickly develop resistance to certain chemicals if used improperly. Additionally, it is recommended to rotate between different types of insecticides to prevent resistance from developing.

It is also important to regularly monitor plants for whitefly activity and apply insecticides as soon as whiteflies are detected to prevent infestations from spreading. Additionally, consider using other methods of control, such as introducing natural predators like ladybugs or parasitic wasps, to help manage whitefly populations in a more sustainable manner.