Efficacy of essential oils against Sitophilus oryzae and Rhyzopertha dominica in stored wheat Kumar Ranjeet*, Pandey Purnvarat S1, Tiwari Surendra Nath2 Post Graduate Department of Entomology, Bihar Agricultural University, Sabour, Bhagalpur, 813210, Bihar 1Division of Education Planning and Home Science, ICAR, KAB II, New Delhi, 110012 2Department of Entomology, College of Agriculture, G. B. Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand *Email: rkipm06@gmail.com (corresponding author)
Online published on 21 July, 2020. Abstract The experiment was conducted to evaluate the insecticidal activity of four essential oils and their combinations against Sitophilus oryzae and Rhyzopertha dominica under laboratory conditions. 100% mortality was observed in S. oryzae in grain treated with Murraya koenigii, Callistemon citrinus essential oil at 0.2%, Murraya koenigii+ Callistemon citrinus oil at 0.1% each, Murraya koenigii+ Citrus reticulata + Callistemon citrinus oil at 0.07% each and Murraya koenigii+ Citrus reticulata+ Curcuma longa+ Callistemon citrinus oil at 0.05% each, after one day of treatment. Also, 100% mortality was observed with R. dominica after one day of treatment in all essential oils either alone at 0.2% or their two component combinations at 0.1% each or three component combinations at 0.07% each or four component combinations at 0.05% each. Top Keywords Sitophilus oryzae, Rhyzopertha dominica, Murraya koenigii, Callistemon citrinus, Curcuma longa, Citrus reticulata, mortality, insecticidal activity. Top |