Studies on seasonal incidence and management of Litchi Fruit Borer, Conopomorpha sinensis Bradley (Gracillariidae: Lepidoptera) in the low hills of Himachal Pradesh

dc.contributor.advisorRana, V K
dc.contributor.authorBhat, Abhishek
dc.date.accessioned2023-05-08T08:03:14Z
dc.date.available2023-05-08T08:03:14Z
dc.date.issued2022-11-09
dc.description.abstractThe present investigation entitled “Studies on seasonal incidence and management of Litchi Fruit Borer, Conopomorpha sinensis Bradley (Gracillariidae: Lepidoptera) in the low hills of Himachal Pradesh” was carried out during 2021-22 in different litchi growing areas of four district (Kangra, Hamirpur, Bilaspur and Mandi ) in the low hills of Himachal Pradesh to record prevalence of litchi fruit borer. During the survey maximum infestation of borer was found at Nagrota Bagwan in district Kangra. Study on seasonal incidence was carried out at RHR&TS, Jachh and LMRS Nagrota Bagwan. During the study, litchi fruit borer infestation was evident from March to July. It was observed that infestation of Conopomorpha sinensis was severe during June and July months as compared to other months of observation. All weather factors recorded in present investigation had significant as well as non-significant impact on the activity of borer. The bio-efficacy study in both the modules proved that the synthetic insecticides viz., lambda cyhalothrin, chlorantraniliprole and cypermethrin performed relatively better as compared to flubendamide and imidacloprid in the decreasing order whereas the biopesticides were found to be least effective of all the synthetic insecticides included in the study. The insecticides viz., lambda cyhalothrin, chlorantraniliprole and cypermethrin were able to avoid yield loss due to fruit borer to a considerable extent and the values for the parameter varied between 83.00 and 58.72 per cent in these three most effective chemicals compared to bio-pesticides in single spray module where the values were found to lie between 84.19 and 67.50 in the two modules for both concentrations used in the study. The BCR values for these insecticides were recorded to be very high (130.76:1, 100.47:1 and 50.06:1 ) as against < 1.0- 20.69:1 calculated for the three bio-pesticides included in the study.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810197124
dc.keywordsLitchi Fruit Borer, Lepidoptera, Himachal Pradeshen_US
dc.language.isoEnglishen_US
dc.pages62+XIXen_US
dc.publisherCollege of Horticulture and Forestry Neri, Hamirpur (H.P.)en_US
dc.subEntomologyen_US
dc.themeSeasonal incidence and management of Litchi Fruit Boreren_US
dc.these.typeM.Scen_US
dc.titleStudies on seasonal incidence and management of Litchi Fruit Borer, Conopomorpha sinensis Bradley (Gracillariidae: Lepidoptera) in the low hills of Himachal Pradeshen_US
dc.typeThesisen_US
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