Analysis of Technology Gaps on Integrated Management of Major Pests of Jasmine (Jasminum sambac L.) of Tamil Nadu | Chapter 01 | Emerging Issues and Development in Economics and Trade Vol. 2
Investigations were conducted during 2015-2016, in major jasmine growing districts of Tamil Nadu, for assessing the distribution, infestation level and the relative importance of the major pests of jasmine viz., blossom midge, Contarinia maculipennis, budworm, Hendecasis duplifascialis, leaf webworm, Nausinea geometralis and two spotted mite of jasmine, Tetranychus urticae. Majority of respondents were aware of the major jasmine pests, among which 53 per cent respondents ranked budworm as the most important pest, 16 per cent as blossom midge, 9 per cent as two spotted mite and 7 per cent as leaf webworm as major pest. The incidence of major pests of jasmine viz., blossom midge, budworm, leaf web worm and two spotted mite were observed in all the surveyed districts of Tamil Nadu in varying intensity. The incidence of these pests was higher in Madurai district recording 34.27, 35.18, and 28.75 per cent of midges, budworm, leaf webworm and 10.25 two spotted mites per 2 cm 2 leaf area, ...