Determination of LC50 and LC95 values of fipronil against Haemaphysalis bispinosa based on adult immersion test

Reghu Ravindran; Krishnan Kavalimakkil Amithamol; Athalathil Ramankutty Sunil; Valliparambil Chandran Soorya; Suresh Narayanan Nair; Sanis Juliet; Nagarajan Selvam Arunkumar; Karapparambu Gopalan Ajith Kumar; Srikanta Ghosh

doi:10.1007/s12639-012-0181-5

Determination of LC50 and LC95 values of fipronil against Haemaphysalis bispinosa based on adult immersion test

J Parasit Dis. 2014 Mar;38(1):132-4. doi: 10.1007/s12639-012-0181-5. Epub 2012 Sep 27.

Authors

Reghu Ravindran¹, Krishnan Kavalimakkil Amithamol¹, Athalathil Ramankutty Sunil¹, Valliparambil Chandran Soorya¹, Suresh Narayanan Nair², Sanis Juliet², Nagarajan Selvam Arunkumar², Karapparambu Gopalan Ajith Kumar¹, Srikanta Ghosh³

Affiliations

¹ Department of Veterinary Parasitology, College of Veterinary and Animal Sciences, Pookode, Lakkidi, P. O., Wayanad, 673 576 Kerala India.
² Department of Veterinary Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Pookode, Lakkidi, P. O., Wayanad, 673 576 Kerala India.
³ Division of Parasitology, Indian Veterinary Research Institute, Izatnagar, 243122 UP India.

Abstract

The pattern of mortality of Haemaphysalis bispinosa ticks against fipronil was studied based on adult immersion test. Mortality occurred during 10-19 days post-treatment. The LC50 and LC95 values were calculated as 0.53 and 7.045 ppm, respectively.

Keywords: Acaricidal activity; Fipronil; LC50; LC95; Mortality.