Abstract

Three granular insecticides at two levels (carbofuran, phorate and endosulfan at 1 and 2 Kg. a.i/ha) were evaluated against the eriophyid, Aceria jasmini Channabasavanna on jasmine, Jasminum auriculatum Vahl. in comparison with the soil application of neem cake (at 250 and 500 kg/ha), soil application of neem cake 250 kg combined with foliar spray of neem seed kernal extract (NSKE) at 10%, and neem cake 250 kg plus neem oil 3% foliar spray. All the treatments were found to record significant reduction of leaf infestation over control. The lowest leaf infestation (18.1%) was recorded in carbofuran treated plots at its higher dosage (2. kg a.i/ha) giving 76.1 per cent reduction over control. The mean number of mites present per erineum was 4.2 recorded after third round of application in neem cake (500 kg/ha). Higher dosages (2.0 kg a.i/ha) of all the selected treatments were effective against the mite. Soil application of neem cake at 250 kg/ha combined with foliar application of NSKE 10% was also effective as that of granular insecticides applied at their higher dose (2.0 kg a.i./ha).

Keywords: Aceria, Erincum, Eriophyid, Insecticides