The Chickpea Pod Borer, Helicoverpa armigera (Hübner): Yield Loss Estimation and Biorational Insecticide Assessment in Morocco

Helicoverpa armigera (Hübner) is considered one of the most destructive insect pests chickpea crops in Morocco; however, extent yield loss it causes Morocco unknown. This study assessed losses and pod damage caused by borer H. on four improved Kabuli varieties with insecticide treatment at two different locations. The second part this investigated contact systemic toxicity biological selective insecticides control larvae under controlled laboratory field conditions. results demonstrated that due to infestation were range 14.3–31.2%. Chickpea resulted total seed weight for all varieties, highest Zahor (F84-145C) being 31.18% Allal Tazi followed Farihane (F84-79C) 27.38% Marchouch station. Emamectin benzoate 250 g/ha showed a high level larvicidal activity, 100% mortality 24 h after application. Indoxacarb 25 mL/100 L water, recorded 92% larval 48 application, respectively. bioinsecticide spinosad 30 water 88% Under conditions, emamectin indoxacarb found be highly effective reducing population sprays. Both treatments significantly increased grain yields compared untreated plots, 25.8% 24.5%, These findings applications chemical or week interval starting from setting could incorporated into management strategies armigera.