Journal of Entomological Research

SCOPUSWeb of Science
  • Year: 2014
  • Volume: 38
  • Issue: 3

Efficacy of some chemicals against Varroa destructor (Anderson and Trueman), an obligate ecto-parasitic mite of Apis mellifera Linn.

  • Author:
  • Sanjay Kumar Sharma, Arun Kumar, Surender Kumar Sharma
  • Total Page Count: 8
  • DOI:
  • Page Number: 215 to 222

CSK HPKV, Bee Research Station, NagrotaBagwan - 176047, Himachal Pradesh, India

**Department of Organic Agriculture, College of Agriculture, CSKHPKV, Palampur - 176 062, Himachal Pradesh, India

Abstract

Three chemicals viz. sulphur (0.2 g per frame at weekly interval for five weeks), 85 per cent formic acid (3 ml per colony on alternate days for five weeks) and thymol crystals (1, 2 and 3 g per colony applied only once) were evaluated for their effectiveness against Varroa destructor (Anderson and Trueman) mite. The results revealed that sulphur and formic acid application increased the count of dislodged mites more than 1300 and 60.0 per cent over pre-treatment, respectively. However, formic acid caused significantly higher mite mortality (75 to 86.6%) than sulphur (20.4 to 39.9%).

Keywords

Apis mellifera, formic acid, sulphur, thymol, Varroa destructor