O.P. AMETA AND HEMANT SWAMI

Bioefficacy studies were carried out at Agricultural Research Station,RCA, Udaipur for sucking pests of cotton with
BY1 02960 SL 200 (spirotetramat 200 SL ) @ 150 g, 200 g and 250 g a.i./ha Imidacloprid 200 SL at 20 g a.i./ha and Thiamethoxam 25 WG at 25 g a.i./ha, Acetamiprid 20 SP at 20 g a.i./ha and Monocrotophos 36 SL 360 g a.i./ha. The population of thrips, leafhoppers, white fly and aphids was brought below ETL with three sprays during 2011 and two sprays in 2012 with different dosages of new chemicals. Significantly highest seed cotton yield of 30.45 q/ha (2011) and 29.98 q/ha (2012) was harvested with higher dosage of BY1 02960 SL 200 (spirotetramat 200 SL) @ 250 gm a.i./ha followed by the dosage @ 200 g a.i./ha.