Biocontrol potential of entomopathogenic nematode species against Tribolium confusum (Jac.) (Coleoptera: Tenebrionidae) and Rhyzopertha dominica (Fab.) (Coleoptera: Bostrichidae) under laboratory conditions

Egyptian Journal of Biological Pest Control

Samreen Khan¹  Tabassum Ara Khanum¹  Salma Javed¹ 

[1] National Nematological Research Centre, University of Karachi;

关键词: Entomopathogenic nematode;    Tribolium confusum;    Rhyzopertha dominica;    Potential;    Biocontrol;   

DOI  :  10.1186/s41938-020-0206-9

来源: DOAJ

【 摘 要 】

Abstract Grain commodities, like cereals and legumes, are subject to insect infestation during postharvest processing and storage. Public concerns about the potential risks that derive from the consumption of pesticide-treated commodities have created interest for the development and integration in stored product protection of alternative, ecologically safe methods for the disinfestation of stored commodities. The present study was conducted to evaluate the biocontrol potential of four entomopathogenic nematodes (EPNs): Steinernema pakistanense (LM-07), S. bifurcatum (LM-30), S. affinae (GB-14), and S. cholashanense (GB-22) against adult beetles of Tribolium confusum (Jac.) (Coleoptera: Tenebrionidae) and Rhyzopertha dominica (Fab.) (Coleoptera: Bostrichidae) under laboratory conditions. Suspensions of nematodes were applied at three different concentrations, 50, 100, and 150 IJs/beetle in 1 ml of distilled water at three different temperatures, 20, 25, and 30 °C. Mortality was recorded after 3 days of application. The concentration of 150 IJs/beetle achieved a maximum mortality of 100% for S. pakistanense at 30 °C. The same concentrations revealed that all four species of EPN were able to cause mortal effects depended on temperature and concentrations. S. pakistanense (LM-07) and S. bifurcatum (LM-30) were the most effective at 150 IJs/beetle at 30 °C and S. affinae (GB-14) and S. cholashanense (GB-22) at the same concentration at 20 °C.

【 授权许可】

Unknown