Management of grape mealy bug, Maconellicoccus hirsutus (Green)

A field trial was conducted during post rainy season of 2005–06 in randomized block design with twelve treatments replicated thrice. Well established ten year old grape vineyard located at the Horticulture Research Station, Bijapur was selected for study. The treatments, Dimethoate 30 EC @ 1.7 ml + Fish oil rosin soap @ 5 g/l and Dimethoate 30 EC @ 1.7 m/ll were highly effective in managing grape mealy bug and were at par with each other. However, the treatments viz., Dimethoate 30 EC @ 1.7 ml/l, Verticillium lecanii (WP) @ 2.0 g/l, Metarhizium anisopliae (WP) @ 2 g/l and Clerodendron inerme @ 5% recorded the higher incremental cost benefit ratio of 58.0, 46.2, 21.5, 21.3, respectively.