author(s)
M Aslam, KK Rai and P Tewary

abstract
Inspite of the fact that the climatic conditions of Uttarakhand are congenial for bivoltine silkworm rearing specially for district Dehradun but only spring silkworm crop is being exploited at farmer’s level and autumn crop has yet to be stabilized. The main reasons, as observed, are high temperature, high humidity and bad quality of mulberry leaves during autumn rearing. The temperature and humidity prevailing during rearing season could be manipulated but the leaves quality needs to be improved for silkworm rearing. Keeping in view, summer crop has been taken for study. An average cocoon production was 40.02 kg and 36.66 kg /100 DFLs during summer season 2018 and 2019 respectively in West Dehradun. The farmers conducting silkworm rearing in summer season harvest mulberry leaves bloomed after spring crop harvest and again a fresh harvest during autumn season. This also affects on the performance of autumn silkworm crop and sericulture activity becomes remunerative with spring, summer and autumn crops in a row.