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Dr. Y. S. Parmar University of Horticulture & Forestry, Solan

Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Solan, was established on 1st December, 1985 with the objective to promote education, research and extension education in the fields of Horticulture, Forestry and allied disciplines. Late Dr. Yashwant Singh Parmar, the first Chief Minister and the architect of Himachal Pradesh perceived the importance of Horticulture and Forestry to develop and improve the State economy which led to the establishment of this University. Its history lies in erstwhile Himachal Agricultural College, Solan, established in 1962 and affiliated to the Panjab University. It became one of the campuses of Agriculture Complex of Himachal Pradesh University on its formation in 1970. Consequent upon the establishment of Himachal Pradesh Krishi Vishvavidyalaya in 1978, this campus became its Horticulture Complex and finally in 1985, assumed the status of a State University, being the only University in the country engaged exclusively in teaching, research and extension in Horticulture and Forestry. The University is located at Nauni in Solan District of Himachal Pradesh, 13 km from Solan on Solan-Rajgarh Road, at an elevation of 1300 metres above mean sea level. Solan town is situated on national highway (NH-22) and is well connected by train and bus services. The University has four constituent colleges, out of which, two are located at the main campus Nauni, one for horticulture and the other for forestry, having 9 and 7 departments, respectively. The third College i.e., College of Horticulture & Forestry is located at Neri in Hamirpur District on Nadaun-Hamirpur state highway, about 6 Km from Hamirpur town and is well connected with bus service. The college offers three Undergraduate Degree Programmes i.e. BSc (Hons.) Horticulture, BSc (Hons.) Forestry and B. Tech. Biotechnology and MSc degree programme in a few subjects. The fourth college i.e. College of Horticulture and Forestry, Thunag (Mandi) is located at Thunag District Mandi. This college offer BSc (Hons.) Horticulture and BSc (Hons.) Forestry degree programme. In addition, there are five Regional Research Stations, 12 Satellite Stations and five Krishi Vigyan Kendras (KVKs) situated in different zones of the State.

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2017 - 201912020 - 20221
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Subject: Entomology × Author: ABROL, DIKSHA × End date: 2022 ×
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    ThesisItemOpen Access
    ALTERNATE METHODS FOR THE MANAGEMENT OF FRUIT FLIES INFESTING PEACH AND CUCUMBER
    (UHF, NAUNI, 2022-10) ABROL, DIKSHA; GUPTA, DIVENDER
    ABSTRACT The present investigations on “Alternate methods for the management of fruit flies infesting peach and cucumber” were conducted during 2020 & 2021. In the present study, among different absorbent materials (plyboard, sponge, sawdust, coal and gel) used in attractant insecticide traps, plyboard based trap was found effective and persistent in trapping fruit flies. It was followed by sponge. Coal, sawdust and gel did not prove effective. In peach orchard, B. dorsalis was dominant species over B. zonata whereas in cucumber, B.tau showed its dominance over B. cucurbitae. In laboratory studies, entomopathogenic fungi, M. anisopliae was most toxic to last larval instar and pupae of B.tau and B. cucurbitae followed by B. bassiana and P. lilacinus. Yellow-coloured sticky trap attracted maximum fruit flies followed by green, transparent, blue, red and brown in peach orchard and cucumber crop. In the laboratory studies, after feeding of Phloroglucinol (@ 125 mM) based diet to B. tau and B. cucurbitae resulted in lowest oviposition. Among different absorbent materials (sponge, gel and plyboard) used for phloroglucinol based diet, minimum egg laying and egg hatch was recorded in gel followed by sponge. An egg shell peroxidase inhibitor, phloroglucinol (1,3,5 hydroxy benzene)when fed at the dose of 125mM to adult daily and at alternate day in two sets of experiments resulted in lowest oviposition in the B. tau (0.85 and 0.96 eggs/female/day) and B. cucurbitae (0.75 and 0.89 eggs/female/day). Further feeding of fruit flies with phloroglucinol (125mM) resulted in thinning of egg shell, partially broken egg chorion and egg with chorion only. The molecular analysis of these eggs when done by using SDS- PAGE confirmed the inhibition of egg shell peroxidase in B. tau and B. cucurbitae. In B. dorsalis, also the egg shell peroxidase inhibition was found. In field conditions, phloroglucinol (125mM) based diet provided in sponge and cotton in caged cucumber plot proved effective in reducing the fruit fly infestation (20.82 and 27.98 %) and resulted higher yield (5.50 and 4.32 kg ) in comparison to control where fruit fly infestation was 49.27 % and 1.02 kg yield. The bio-efficacy trial conducted against fruit flies infesting peach and cucumber revealed that kaolin (20%) and spinosad (0.002%) and lambda-cyhalothrin (0.004%), proved equally effective in managing fruit fly infestation. Azadirachtin (0.01%) was comparable to the recommended insecticide i.e. malathion (0.1%) in checking the fruit fly infestation in both the crops. The avoidable loss was maximum in lambda-cyhalothrin treatment, followed by 20 % kaolin and spinosad in peach and cucumber. Among all the test treatments, incremental benefit cost ratio was highest in lambda-cyhalothrin in peach orchards and cucumber followed by malathion and spinosad. Azadirachtin and kaolin treatments were not economically viable as Incremental Benefit Cost Ratio was less than one due to higher cost of these treatments. There were no phytotoxicity/ fruit injury symptoms in any of the test treatments
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    ThesisItemOpen Access
    EVALUATION OF SOME INSECTICIDES, BIOPESTICIDES AND CLAY FOR THE MANAGEMENT OF FRUIT FLY, Bactrocera spp. INFESTING BITTER GOURD AND BOTTLE GOURD
    (UHF,NAUNI, 2017) ABROL, DIKSHA; GUPTA, DIVENDER
    ABSTRACT The present investigations on “ Evaluation of some insecticides, biopesticides and clay for the management of fruit fly, Bactrocera spp. infesting bitter gourd and bottle gourd” was carried out during 2016 in the farm of department of Entomology, Dr. Y S Parmar University of Horticulture and Forestry, Nauni, Solan. Lambda-cyhalothrin (13.80 and 14.62% infestation) was found superior over spinosad (15.86 and 17.38% infestation) and deltamethrin (16.93 and 18.69% infestation) in bitter gourd and bottle gourd, respectively. All the three treatments were superior over malathion (29.82 and 31.51% infestation) in both the crops. Azadirachtin was best among the biopesticide treatments and also was found superior over the recommended insecticide i.e malathion. Neem oil, B. bassiana, pongamia oil, clay and neemastra treatments were not found effective though these were superior over control. The avoidable loss values were higher in lambda-cyhalothrin (48.72 and 47.93%) in bitter gourd and bottle gourd respectively. Benefit cost ratio was highest in deltamethrin (26.56:1 and 20.54:1) followed by lambdacyhalothrin (BCR 22.22:1 and 15.39:1) in bitter gourd and bottle gourd crops. Spinosad though was effective as far as the bioefficacy is concerned but from economic point of view it resulted in less benefit cost ratio (13.63:1 and 9.98:1) due to higher cost of test insecticide, in bitter gourd and bottle gourd, respectively. The biopesticide were not economically viable as the BCR computed was <1 except B.bassiana with a quite low BCR value (2.43:1 and 1.21:1). In neem oil, pongamia oil and neemastra treatments phytoxicity symptoms viz. yellowing, bronzing, crinkling and vein clearing were observed. However, in bitter gourd none of the test products resulted in phytotoxicity/fruit injury symptoms.