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  1. Kerala Agricultural University Digital Library
  2. 1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)
  3. PG Thesis
a
Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/6800
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dc.contributor.advisorSosamma Jacob-
dc.contributor.authorCherian Thomas-
dc.date.accessioned2020-01-16T10:24:33Z-
dc.date.available2020-01-16T10:24:33Z-
dc.date.issued1989-
dc.identifier.siciCoh T-254en_US
dc.identifier.urihttp://hdl.handle.net/123456789/6800-
dc.description.abstractStudies were undertaken to assess the bioefficiency, persistence and residue dynamics of carbofuran in bittergourd (Momordica eharantia L.). Carbofuran was applied at two doses, 0.75 and 1.5 kg ai/ha at different growth stages, namely sowing, vining, flowering and at all the above three stages of the bittergourd crop. An untreated control was also maintained to compare the effects of various treatments. All the treatments recorded lower population of epilachna beetle (Henosepilachna 28 punctata Fab.) than control. But the treatment wherein carbofuran ® 1.5 kg ai/ha applied at the time of sowing, vining and flowering was found to be the most effective one in controlling the epilachna beetles with 95,79 per cent reduction over control 80 days after sowing. In controlling the red pumpkin beetle Raphidopalpa feveicollis Lucus. and melon fruit fly Dacus cucurbitae Coq. also the same above treatment was found to be the most effective one. The percentage of reduction in incidence of fruit fly was of the order of 79.72 over control in terms of fruit damage by number and 83.35 by weight. The treatment in which carbofuran Q 0.75 kg ai/ha applied at the time of sowing was found to be least effective in controlling the above pests.en_US
dc.language.isoenen_US
dc.publisherDepartment of Agricultural Entomology, College of Horticulture, Vellanikkaraen_US
dc.subjectBittergourden_US
dc.subjectCarbofuranen_US
dc.subjectCarbofuran residues in cropsen_US
dc.subjectOkraen_US
dc.subjectBrinjalen_US
dc.titleBioefficiency persistence and residue dynamics of carbofuran in bittergourd (Momordica charantia L.)en_US
dc.typeThesisen_US
Appears in Collections:PG Thesis

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