BIPM components for the management of borer complex in sugarcane

Abstract

Developing Biointensive Integrated Pest Management (BIPM) package involving bio agents and safer insecticides facilitate to achieve sustainable yield and quality and monitory benefits to farmers and sugar mills and brings out green environment. In order to find out the effect of various BIPM components to sugarcane borer complex an investigation was undertaken at Sugarcane Research Station, Melalathur during 2010-2011. The treatments imposed were: T1-carbofuran 3G @ 1 kg a i ha-1 at basal and 105 DAP (days after planting), T2-rynaxypyr 20 SC @ 75 g aiha-1 (sett treatment) + soil drenching at105 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 to180 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. Observations on the incidence of shoot borer were recorded on 30, 45, 60 and 90th days after planting and percentage of shoot borer incidence was recorded and pooled incidence were worked out. The internode borer incidence was recorded at the time of harvest based on number of canes affected with respect to total number of canes in a randomly selected row in each plot and percentage incidence of internode borer was worked out. The yield parameters like cane yield, sugar yield and per cent CCS recorded at the time of harvest. Results clearly showed that rynaxypyr 20 SC @ 75 g ai ha-1 recorded lowest percent damage of early shoot borer followed by T7. The incidence of internode borer was the lowest in T2 which recorded highest cane yield of 102.50 tonnes/ha followed by T7. © JBiopest.