how do systemic pesticides kill insects?

thanks :) btw, this is gcse year 10 material

3 Answers

Relevance
  • Tim D
    Lv 7
    8 years ago
    Favorite Answer

    Systemic pesticides are absorbed by plants and make their leaves, stems etc poisonous to insects who eat them.

    • Login to reply the answers
  • Anonymous
    8 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.

    • Login to reply the answers
  • brisco
    Lv 4
    4 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.

    • Login to reply the answers
Still have questions? Get your answers by asking now.