MANAGEMENT OF CITRUS TRUNK BORER IN TINSUKIA DISTRICT OF ASSAM – A SUCCESS STORY

Abstract

Citrus trunk borer is one of the major pests of Khasi mandarin in Tinsukia district of Assam. About 15 – 60 per cent damage was observed due to the insect infestation. FLDs conducted by KVK, Tinsukia from 2012-13 to 2015-16 in few declining Khasi mandarin orchards on “Management of citrus trunk borer” using improved protection measures for trunk borer developed by Citrus Research Station, Assam Agricultural University; Tinsukia. Results of the FLDs showed that the increased average yield in the rejuvenated orchards were recorded about 23 per cent during the period of intervention with a B: C ratio of 4.33:1 compared to  B: C ratio of 2.31:1 before intervention.