Impact of Bio Intensive IPM Components on Borer Complex in Sugarcane for Sustained Cane Production

Bio intensive IPM is the potential option to tackle the borers in sugarcane crop, since the practices are not only effective and economical but also ecologically safe. In order to find out the effect of various BIPM components to sugarcane borer complex, an investigation was undertaken at Sugarcane Research Station, Sirugamani during 2020-2022. The treatments were T1-Carbofuran 3G @ 1 kg ai ha-1 at basal and 105 DAP (days after planting), T2-Rynaxypyr 20 SC @ 75 g aiha-1 (sett treatment) + soil drenching at 105 DAP @ 75 g a i ha-1, T3-Intercropping of blackgram+ mechanical removal of top borer infested shoots and egg masses of internode and top borers, T4- Neemcake @ 125 kg ha-1 at basal and 105 DAP, T5- Release of T.chilonis @ 2.5 cc ha-1 release-1 starting from 30 to 180 DAP at 15 days interval (11 releases), T6-Combination of T4 + T5, T7- Intercropping of blackgram + Detrashing at 150, 180 and 210 DAP+ T6 and T8-Untreated Check. Rynaxypyr 20 SC @ 75 g a.i./ha as sett treatment as well as drenching on 105 DAP recorded lowest mean incidence of ESB (20.41%) and INB (16.32%) as well as top borer (2.01%) and registered highest mean yield (104.82 tonnes/ha).