تاثير النيماتودا الممرضة للحشرات و المبيد اليميداكلوبريد في يرقات كابنودس اللوزيات capnodis tenebrionis L Coleoptera: Buprestidae في ظروف شبه حقلية

The effect of two application rates - 100 & 200 infective juvenile stage IJ per cm2 of local entomopathogenic nematode isolate Heterorhabditis bacteriophora Poinar (H.b), commercial formulation of Steinernema feltiae Filipjev (S.f) at application rate 100IJ/cm2 and the imidacloprid insecticide at a rate of 0.01gm a.i/l on Capnodis tenebrionis larvae before and after Capnodis larvae enter the root of potted peach transplant - were assessed in semi-field conditions. The results showed that all treatments significantly reduced the number of Capnodis larvae before and after entering the roots compared to controlled untreated treatments. Killing percentages of C. tenebrionis larvae before entering the roots were 60%, 67%, 40%, and 100% for H.b (100IJ/cm2), H.b (200IJ/cm2), S.f and imidacloprid, respectively; while after entering the roots they were 79%, 84%, 58%, and 68%, respectively.