Biology and eco-friendly management of cabbage butterfly Pieris brassicae L.

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dc.contributor.advisorRana, V K
dc.contributor.authorKashyap, Hemant Kumar
dc.date.accessioned2023-06-24T10:51:10Z
dc.date.available2023-06-24T10:51:10Z
dc.date.issued2022-12-04
dc.description.abstractThe present investigation entitled “Biology and eco-friendly management of cabbage butterfly Pieris brassicae L.” was carried out in the Department of Entomology, College of Horticulture and Forestry, Neri, Hamirpur (HP). Studies on the biology revealed that pre-oviposition, oviposition and post-oviposition periods were 1.60, 3.60 and 1.8 days, respectively. A single female butterfly laid 128.60 ± 9.50 eggs, which hatched in 5.50 ± 0.02 days. Mean duration of the 1st, 2nd, 3rd, 4th and 5th larval instars was 4.70, 4.50, 4.30, 4.80 and 5.50 days, respectively with a total larval period of 23.50 days. The pre-pupal and pupal stage lasted for 1.50 ± 0.02 and 10.50 ± 0.02 days, respectively. The male and female completed total life cycle in 40.00 ± 0.44 and 42.40 ± 0.68 days. Morphometric study revealed that the egg measured 1.08 ± 0.01 mm in diameter. Average body length of the 1st, 2nd, 3rd, 4th and 5th larval instars was 6.01 ± 0.02, 11.88 ± 0.12, 21.64 ± 0.32, 31.09 ± 0.48 and 38.29 ± 0.18 mm, respectively. All the pesticides tested viz., spinosad 45% SC, emamectin benzoate 5 SG, Azardirachtin 0.15% EC, Bacillus thuringiensis var. Kurstaki 0.5 WP, Beauveria bassiana 1 WP and Agni astra for the management of P. brassicae were found to be superior over control. Among the different pesticides tested spinosad 45% SC @ 0.004% was found to the be most effective for managing population of P. brassicae, while Agni Astra was the least effective.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810197700
dc.keywordscabbage butterfly, Pieris brassicae L.,cruciferae, Entomology, Eco-friendly management, Himachal Pradeshen_US
dc.language.isoEnglishen_US
dc.pages41+iien_US
dc.publisherCollege of Horticulture and Forestry Neri, Hamirpur (H.P.)en_US
dc.subEntomologyen_US
dc.themeBiology and eco-friendly management of cabbage butterflyen_US
dc.these.typeM.Scen_US
dc.titleBiology and eco-friendly management of cabbage butterfly Pieris brassicae L.en_US
dc.typeThesisen_US
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Hemant Kumar Kashyap ; V K Rana
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