Abstract

Author:
Sudeep Kumar Upadhyay, Sunil Aryal, Bikash Bhusal

Doi: 10.26480/sfna.02.2022.96.100

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Mango, Mangifera indica (L.) is the important fruit crop in production in Nepal. Sternochetus mangiferae; Fabricius (Coleoptera: Curculionidae) is major monophagous insect pest which causes loss of both quantitative and qualitative value. To mitigate this problem, we designed and conducted experiment in Randomized Complete Block Design to evaluate effective insecticide against mango stone weevil on station and farmers orchard in two consecutive years at Sunsari and Udaipur districts. We sprayed five insecticides namely: azadirachtin, thiamethoxam, flubendiamide, lamda cyhalothrin and dimethoate in recommended doses on mango plant when the fruit was of pea size for four times at ten days interval. The damage was recorded at harvesting stage. Significantly less damage was recorded on the thiamethoxam treated plants followed by flubendiamide and lamda cyhalothirn. The interaction of the treatments with the location and years was not significantly different suggesting that the year and location had not any influence on the treatment effect. Our result suggested that thiamethoxam is effective to manage mango stone weevil.