Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India.
*E mail: govindan_nivesh@yahoo.co.in
Two field experiments were carried out to evaluate the efficacy of emamectin benzoate 5 SG, a new formulation against cotton bollworm complex compared to commercial Proclaim® (emamectin benzoate 5 SG), spinosad 45 SC and endosulfan 35 EC, during first season at Vellan Koil in winter season (Cv. MCU 5) and second season at Erangkattur in summer season (Cv. Surabhi). Emamectin benzoate 5 SG at 11 and 15 g a.i. ha−1 was highly effective in reducing the boll and locule damage when compared to other standard check, spinosad 45 SC @ 75 g a.i. ha1 and endosulfan 35 EC @ 350 g a.i. ha−1. The lowest per cent boll and locule damage was recorded with the foliar application of emamectin benzoate 5 SG at 11 g a.i. ha−1 on par with 15 g a.i. ha−1 which also increased the yield of cotton.
Field efficacy, emamectin benzoate, bollworms, Cotton,
