Abstract:Experiments to control phloem-sucking pests in landscaped forests by high efficiency and low toxicity pesticides was carried out,it indicated that: pesticides such as Deltamethrin and azadirachtin have good control effects on plant hopper,Methidathion,acetamiprid and nicotine also have effects on plant louse.But pesticides imidacloprid,matrineand,avermectins and deltamethrin have effects on lace controlling and avermectins,matrine and pyriden have effects on mites controlling.The control density of differen...