Injection technique of infested trees was carried out, at Ismaielia Govemorate using 15 insecticides belonging to 11 chemical active ingredients. Obtained results indicated that at 10000 ppm all tested chemicals gave 100% mortality, except in Actara. At 1000ppm a reduction ranged between 80-100% , while at 100 ppm Selecron which was the most effective gave 60 % mortality , followed by Quick and Vydat. The other chemicals gave less mortality. At 10 ppm the mortality ranged between 60 — 0 % . The most effective active ingredients were chlorpyrifos ( Dursban, chlorzan and pyriban ) , followed by Diazenon ( Basudin, and diazenox ) ,phenthoat (Odial) and methomyl ( quick) .