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Researcher Karmarkar, Meghana Suresh
Advisor Mehendale, S. K.
Source KrishiKosh-Indian National Agricultural Research System
Content type Text
Educational Degree Master of Science (M.Sc.)
Publisher dbskkv.
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Life sciences; biology ♦ Technology ♦ Agriculture & related technologies ♦ Plant injuries, diseases & pests
Subject Keyword Entomology ♦ Agricultural Entomology
Abstract The present study entitled, “Bionomics and management of Bean pod Borer Maruca vitrata (Fabricius) (Lepidoptera : Crambidae)†was undertaken with specific objectives viz., Bionomics of Bean Pod Borer, Management of Bean Pod Borer in the field and to study the knockdown effect of insecticides (72 hours after treatment). Studies on bionomics was conducted at Department of Agricultural Entomology, College of Agriculture, Dapoli. The mean pre-oviposition, oviposition and post-oviposition period lasted for 3.0, 3.0 and 1.3 days, respectively while the incubation period of eggs on buds and tender pods was found 3.24 days on an average. Total larval, prepupal and pupal period lasted for 12, 2.1 and 8.9 days, respectively. One generation completed within 30.0 and 34.6 days for male and female, respectively. The field experiment conducted at C.E.S., Wakawali to evaluate the efficacy of some insecticides against Maruca vitrata and observations were recorded after 7, 14 and 28 days after treatment on the basis of per cent bud and per cent pod damage. The treatment with cypermethrin + profenophos 44 EC (0.04%) and Emamectin benzoate 5 SG (0.002%) were found significantly superior over rest of the treatments at all the three sprays. These findings were supported by getting maximum yield from these two treatments. The observations on the knockdown effect were recorded in the field (72 hours) after each spray to judge the immediate action of insecticides. Here also, the treatment with cypermethrin + profenophos 44 EC (0.04%) recorded maximum per cent larva mortality with average of 61.33 per cent followed by 0.002 per cent Emamectin benzoate (5 SG) with an average mortality of 56.89 per cent.
Educational Use Research
Education Level UG and PG
Learning Resource Type Thesis
Publisher Place Dapoli
Size (in Bytes) 1.56 MB
Page Count 78