اختبار كفاءة مبيد Thiamethoxam بطرق معاملة مختلفة لمكافحة حشرة دوباس النخيل (Ommattisus binotatus lybicus DeBerg)

Actara 25WG (thiamcthoxam) and Scvin 48% (carbaryl) were evaluated to control the old world date bug (Dubas bug) by using different application techniques (spray, drench and injection). The trials were carricd out during spring and autumn of 1999 in Baghdad city. It was found that injection of Igm (a.i.) per tree of thiamcthoxam suppressed the population density remarkably, there was 0.056 insect/lcaflct 7 days alter injection while no infestation was observed after 25 days post treatment. The drench and spray treatment were less effective than injection particulary after 25 days, while the injection of prepared capsule of Sevin (carbaryl) was less efficient than thiamcthoxam injection. During autumn season the insecticide Actara was evaluated; using different application methods. It was observed that the injection methods was most superior than the others. Residues of thiamcthoxam in leaves were 4.091 and 2.675 pprn., 7 and 25 days respectively post injection of I gm a.i / tree.