Ecology, Environment and Conservation Paper

EFFICACY OF SOME HORTICULTURAL MINERAL OILS (HMO’S) ALONE AND IN COMBINATION WITH SOME OVICIDAL ACARICIDES AGAINST PANONYCHUS ULMI (KOCH.) IN KASHMIR, INDIA

M.A. Mir, A. R. Wani, Saima Paul, Asima Amin and Shabeena Majid

Abstract

The field investigation were conducted during the year 2013 at Krishi Vigyan Kendra (KVK) Balpora (Shopian) a constituent of S.K University of Agricultural Sciences and Technology of Kashmir (SKUAST-K) and a private orchard of Zawoora (Srinagar) to study the efficacy of some horticultural mineral oils at 2.5 percent concentration alone and incombination with some ovicidal acaricides Hexythiazox (0.002%), Fenazaquin (0.004%), Dicofol (0.02%) and Ethion (0.05%) against hatch ability of European red mite ( ERM) Panonychus ulmi (Koch.) eggs. The study revealed that MAK spray oil exhibited minimum ERM egg hatchability of 41.00 and 36.31 percent at Balpora (Shopian) and Zawoora (Srinagar) at 30 days after treatment (DAT) as compared to 32.97 and 31.99 percent in case of Diesel oil emulsion as check, respectively. In case of treatment combination MAK spray oil + Hexythiazox (2.5+0.002%) against the hatch ability of ERM eggs resulted in minimum percent hatchability of 15.77 at Balpora (Shopian) and 18.58 percent at Zawoora (Srinagar) followed by MAK spray oil + Fenazaquin (2.5+0.004%). Among the combination of Diesel oil emulsion (DOE) and ovicidal acaricides the minimum mean percent hatchability of 13.71 was recorded in case of DOE + Hexythiazox (1:10+0.002%) at Balpora and 17.03 at Zawoora at 30 DAT compared to 28.23 and 26.06 percent in case of DOE+ Ethion (1:10+0.05%) as check, respectively.