CHAUHAN RINKIKUMARI AND ABHISHEK SHUKLA

The effect of various oils on oviposition and hatching of acarid mite, were studied during the year 2017-18 and 2018-19 at Acarology Laboratory, Department of Entomology, N.M. College of Agriculture, Navsari Agricultural University, Navsari, Gujarat. The present study revealed that on an average 117.17 eggs were laid by the acarid mite, in the control. Further, the minimum number of eggs were laid at 2.00 ml/kg concentration when groundnut seed was treated with the sesame oil were 54.17 eggs were observed which were followed by mustard oil, coconut oil, cotton oil and soybean oil (61.00, 77.83, 91.17 and 93.67 eggs), respectively. The maximum numbers of eggs (107.00 eggs) were laid on groundnut seeds treated with soybean oil at 0.50 ml/kg concentration. However, out of all the oils tested, the deterrence was maximum in sesame oil at all the three concentration of 0.50, 1.00 and 2.00 ml/kg indicated by DQ 0.22, 0.28 and 0.37, respectively. All the edible oils proved effective at 2.00 ml/kg concentration with only 89.50, 86.67, 92.33, 91.83 and 86.33 per cent hatchability, coconut oil, mustard oil, soybean oil, cotton oil and sesame oil treatment, respectively in comparison to 91.83, 89.00, 95.00, 94.33 and 87.33 per cent hatchability observed in case of coconut oil, mustard oil, soybean oil, cotton oil and sesame oil treatments respectively at 0.50 ml/kg concentration.