1Regional Agriculture Research Sub Station, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kargil, Ladakh, Jammu and Kashmir- 194 103, India.
2Regional Agriculture Research Station, Sher-e-Kashmir University of Agricultural Sciences and Technology, Leh, Ladakh, Jammu and Kashmir - 1941001, India.
Survey was conducted during the year 2005–08 at Kargil district of Ladakh region to quantify the extent of damage of onion maggot, Delia antiqua (Meigen) (Diptera: Anthomyiidae) in onion and to find out effective insecticide for the management of onion maggot. The study revealed that the onion maggot caused 17.11 to 37.5% infestation in onion in different area of Kargil district with highest and lowest infestation in Shilikchey and Baro village, respectively. Similarly in a experiment, out of six insecticides namely Phorate, Dichlorvos, Phosphamidon, Endosulfan, Chlorpyriphos and Malathion, Phosphamidon was found to be most effective insecticide at both concentrations i.e. 0.05 and 0.07% by reducing 60.00 to 84.5% infestation over control. However, it was almost at par with Phorate which reduced 46.0 to 76.8% infestation, respectively. The Endosulfan, at both concentrations, was found to be least effective insecticide as compared to the rest of the test insecticide.
Onion, Delia antiqua, insecticide, infestation, Kargil, Ladakh
