IN VITRO EFFICACY OF ENTOMOPATHOGENIC NEMATODES AS A BIOCONTROL OF SHEEP TICKS

R. SUDHA RANI¹*, PLACID E D SOUZA², B.M. CHANDRANAIK³, S.M. BYREGOWDA⁴, B.M. VEEREGOWDA^5
1Department of Veterinary Parasitology, CAFT, Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Bengaluru, 560024, Karnataka, India
²Professor and Head, Department of Veterinary Parasitology, CAFT, Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Bengaluru, 560024, Karnataka, India
³Institute of Animal Health and Veterinary Biologicals, Karnataka Veterinary, Animal and Fisheries Sciences University, Bengaluru, 560024, Karnataka, India
⁴Director, Institute of Animal Health and Veterinary Biologicals, Karnataka Veterinary, Animal and Fisheries Sciences University, Bengaluru, 560024, Karnataka, India
⁵Department of Veterinary Microbiology, Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Bengaluru, 560024, Karnataka, India
* Corresponding Author : vet.sudha755@gmail.com

Received : 01-03-2021     Accepted : 26-03-2021     Published : 30-03-2021
Volume : 13     Issue : 3       Pages : 10684 - 10688
Int J Agr Sci 13.3 (2021):10684-10688

Keywords : Biocontrol, Entomopathogenic nematodes, Steinernema abbasi, Heterorhabditis indica, Ticks
Academic Editor : Anindita Paul
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Department of Veterinary Parasitology, CAFT, Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Bengaluru, 560024, Karnataka, India
Author Contribution : All authors equally contributed

The present study was conducted to assess the efficacy of two entomopathogenic nematodes (EPNs) viz, Steinernema abbasi and Heterorhabditis indica as a biocontrol against engorged female’s ticks of Haemaphysalis, Hyalomma and Rhipicephalus. EPN efficacy was assessed at a concentration of 500,1000, 2000, 4000, 6000 and 8000 infective juveniles / petri dish in triplicates. Heterorhabditis indica was effective in inducing 100 % mortality within 72hrs at all concentrations whereas Steinernema abbasi induced 50 to 100% mortality at 214hrs at 8000 infective juvenile’s concentration against Haemaphysalis, Hyalomma and Rhipicephalus

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