Efficacy of Clonostachys rosea, as a promising entomopathogenic fungus, against coleopteran stored product insect pests under laboratory conditions

Egyptian Journal of Biological Pest Control

Abdulla N. Ali¹  Akram A. Mohammed¹  Amal S. Younus² 

[1] Plant Protection Department, University of Kufa, Najaf, Iraq;Plant Protection Department, University of Kufa, Najaf, Iraq;Al-najaf Directorate of Agriculture, Ministry of Agriculture, Najaf, Iraq;

关键词: Entomopathogenic fungus;    Clonostachys rosea;    S;    Trogoderma granarium;    Tribolium castaneum;    Callosobruchus maculatus;    Potential;    Iraq;   

DOI  :  10.1186/s41938-021-00405-6

来源: Springer

【 摘 要 】

BackgroundEfficacy of new isolates of the entomopathogenic fungus (EPF), Clonostachys rosea, against adult stage of the most serious coleopteran stored product insect pests in Iraq, Trogoderma granarium Everts (Coleoptera: Dermestidae), Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) and Callosobruchus maculatus Fabricius (Coleoptera: Chrysomelidae), was evaluated under laboratory conditions. Two isolates of C. rosea, associated with the green peach aphid (Myzus persicae Sulz.), were isolated and investigated. Efficacy of C. rosea isolates was evaluated by two concentrations (1 × 108 and 1 × 106 conidia ml−1).ResultsCorrected mortality rates caused by both C. rosea isolates, 6 days post-treatment, with 1 × 108 conidia ml−1, ranged from 70.7 to 75.7%. Fungal infection caused 37–53% reduction in total fecundity of the adult females of the three tested insect species, 6 days post-treatment.ConclusionObtained results demonstrated that C. rosea isolates had potentials as a biological control agent against coleopteran stored product insect pests. However, further studies under commercial storage conditions are required.

【 授权许可】

CC BY