تأثير عدد الرشات ببعض المبيدات الكيميائية في كفاءة مكافحة حشرة خنفساء المديد Spermophagus sericeus (Geoffr)‎ (Coleoptera : Bruchidae)‎ و حاصل فول الصويا Glycine max

Abstract EN

Study was applied in field in the Radwaniyah region west Baghdad during agriculture season 2015 from 15/5/2015 until 1/11/2015, to evaluate efficiency of some foliar insecticides in reducing population insect convolvulus beetle Spermophagus sericeus (Geoffr) (Coleoptera:Bruchidae) on soybean crop (Lee74 variety) .

The results showed that the heghest of total average numbers of insect pect was in control treatment 1.47 and 1.2 insect/plant in the first and second spray respectively with significant difference from other treatment and associated with the less average of 100 seeds weigh that was 8.94 and 9.50 gm in the first and second spray respectively, The less of total average numbers insect pest in one spray tseatnet was 0.13 insect/plant in Confidor treatment and associated with the highect average of 100 seeds weigh that was 9.45 gm , in two spray the lreatneut of total average numbers of insect pest was in Actara application (0.07 insect/plant) and associated with average of 100 seeds weight that was 9.91 gm with not significant difference between seeds weight in one and two spray .