Evaluation of insecticdes and non-edible oils against Banana stem weevil Reddy D Srinivas*,1, Madhumati C, Nagaraju R Horticultural Research Station, Dr. YSR Horticultural University, Ananthrajupet, 516105 1Raliway Kodur, YSR, Kadapa District, Andhra Pradesh *Email: dsr2020@gmail.com
Online published on 21 July, 2020. Abstract The banana pseudostem weevil (BPW) Odoiporus longicollis (Oliver) (Coleoptera: Curculiondae) is a serious pest of banana. An experiment was conducted with cultivar Rasthali having eleven treatments during 2016 and 2017 to evaluate some insecticides and non-edible oils/cakes against BPW. The results revealed that except mahua and castor oil cakes@ 1 kg/plant along with fertilizer application all others gave reduction in damage, and number of life stages of BPW. The injection of botanicals (2% neem oil) at monthly interval from 5−8th month led to more damage as compared to injection of insecticides namely, 2% monocrotophos 36SL and chlorpyriphos 20EC at monthly intervals from 5–8th month. The use of carbofuran 3G@ 750mg ai/plant in soil at 0, 2nd, and 5th month followed by leaf axil application @375mg ai/plant at 7th month and carbofuran 3G @ 375mg ai/plant at 5th, 6th and 7th month in leaf axil resulted in minimum damage and reduction in life stages of weevil, indicating that these could be recommended. Top Keywords Banana, Odoiporus longicollis, carbofuran, non-edible oils, oil cakes, castor, mahua, neem oil, monocrotophos, damage, lifestages. Top |