author(s)
Zameeroddin, Syed Najeer E Noor Khadri and Jeer Vinayaka

abstract
The experiment was conducted to know the efficacy of Fipronil 80% WG with different concentration (30g.a.i./ha, 40g.a.i./ha, 50g.a.i./ha and 60g.a.i./ha) along with two standard check (Thiamethoxam 25WG @ 25g.a.i./ha and Imidacloprid 17.8SL @ 25g.a.i./ha) and a control against thrips (Scirtothrips dorsalis Hood) in grape ecosystem. The results concluded that Fipronil 80% WG @ 50g.a.i./ha and Fipronil 80% WG @ 60g.a.i./ha along with Imidacloprid 17.8SL @ 25g.a.i./ha were on par with each other and recorded highest mortality of thrips followed by Fipronil 80% WG @ 40g.a.i./ha and Thiamethoxam 25WG @ 25g.a.i./ha the least mortality was observed in Fipronil 80% WG @ 30g.a.i./ha and in control. The yield data reveals that, the highest yield was observed in fipronil 80 WG @ 60 g a.i./ha which was 42.33 per cent more than the control and superior over all the treatment and least in the control.