Journal ID : AMA-25-10-2023-12674
[This article belongs to Volume - 54, Issue - 10]
Total View : 466

Title : Experimental evidence of mortality in honey bee, Apis mellifera L. (Hymenoptera: Apidae), workers caused by entomopathogenic nematodes, Steinernema abbasi and Heterorhabditis indica (Nematoda: Rhabditida)

Abstract :

This study was conducted to test whether the entomopathogenic nematodes, Heterorhabditis indica and Steinernema abbasi, used in biological pest management programmes could potentially have adverse effects on honey bee, Apis mellifera workers. EPNs are considered as safe bio-agents which might be used as a bio-pesticide against the greater wax moth, Galleria mellonella infesting honeybee colonies without causing any harm to adult bees and brood. However, exposer of bee workers to Steinernema abbasi and Heterorhabditis indica under laboratory conditions confirmed the susceptibility of bee workers to nematode infection without successful recycling. The results obtained showed % mortality of bee workers exposed through feed (indirect exposer) were 37% and 61%, respectively, while for direct spray, the mortality percentages were 20% and 33% for H. indica and S. abbasi, respectively, under laboratory conditions. This study concluded that application of both S. abbasi and H. indica may not be the safe options to be used in any situation where honeybee workers or colonies are likely to be exposed during bio-control interventions.

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