how do systemic pesticides kill insects?
thanks :) btw, this is gcse year 10 material
- Tim DLv 78 years agoFavorite Answer
Systemic pesticides are absorbed by plants and make their leaves, stems etc poisonous to insects who eat them.
- Anonymous8 years ago
Systemic insecticides kill insects by being drawn up into the sap of a plant before insects attack. When a pest insect drinks the plant’s sap, it is poisoned by the insecticide. When a harmless insect simply lights on the plant, it is not affected.
Systemic insecticides may be either drenches or foliar sprays. It is important to apply drenches several weeks before the arrival of pest insects, so there is time for the poison to be drawn into plant leaves.
Imidacloprid, disulfoton and acephate are common systemic insecticides.
- briscoLv 44 years ago
They in most cases have an impact on the respiratory approach. There are longer lasting products so as to kill through the digestive monitor comparable to "Black Flag" which was nicotine centered. Nicotine is a powerful poison. Some kill with diatomaceous earth which whilst now not fairly a poison works itself into their exoskeleton, I consider.