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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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20106
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Subject: Entomology and Apiculture × End date: 2010 × Start date: 2010 × Type: Thesis ×
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Now showing 1 - 6 of 6
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    ThesisItemOpen Access
    Screening Of Apis Mellifera L. Colonies For Varroa Tolerance And Evaluation Of Colony Performance Of Selected Stock
    (Dr Yashwant Singh Parmar University of Horticulture and Forestry;Solan, 2010) Sharma, Ritesh; Gupta, J. K.
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    ThesisItemOpen Access
    Studies on incidence, pathogenicity, biology and biomanagement of insect pests associated woth cultivated mushrooms
    (Dr Yashwant Singh Parmar University of Horticulture and Forestry;Solan, 2010) Sharma, Anurag; Khanna, Anju S
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    ThesisItemOpen Access
    Exploitation Of Aphelinid Endoparasitoids, Encarsia Sp. And Eretmocerus Sp. And Entomopathogenic Fungi For The Supperssion Of Greenhouse Whitefly
    (Dr Yashwant Singh Parmar University of Horticulture and Forestry;Solan, 2010) Reecha; Chauhan, Usha
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    ThesisItemOpen Access
    STUDIES ON INCIDENCE, PATHOGENICITY, BIOLOGY AND BIOMANAGEMENT OF INSECT PESTS ASSOCIATED WITH CULTIVATED MUSHROOMS
    (2010) SHARMA, ANURAG; KHANNA, ANJU SUDHAKAR
    The present piece of research entitled “Studies on incidence, pathogenicity, biology and biomanagement of insect pests associated with cultivated mushrooms” was conducted to acquaint with the insect pest fauna of two commercially cultivated mushrooms viz. Agaricusbisporus and Pleurotussajorcaju. Abundance of insects belonging to orders Diptera and Coleoptera was recorded in both the mushrooms. In addition, spring tails and mites were also of common occurrence. Two genera of flies belonging to families Sciaridae and Phoridae registered their presesnce in two mushrooms. Of these, the most prevalent grayish black small fly with filiform antennae, typical sciarid wings, long legs with contiguous cozae and elongated abdomen, was identified as Sciarasp. (Diptera: Sciaridae). Looking into its wide distribution in distantly located units, this insect was selected as test insect for further studies. Megaselia sp. (Diptera: Phoridae) was observed in two locations only. Incidence of four genera of beetles viz., Cyllodesindicus, Scaphisomanigrofasciatum, Staphylinus sp. And Spondotriplaxpallidipes was also recorded. Of these, former three infested both the mushrooms but the last one was found to be present in P. sajorcaju only. Interestingly, despite its near cosmopolitan distribution in mushroom units of the state Sciarasp. has been reported for the first time in mushrooms from Himachal Pradesh. Similarly, S. pallidipes has never been recorded earlier from mushrooms in the world. Maggots of Sciara sp. and grubs as well as adults of the beetles fed voraciously on the mycelium and fruit bodies of the mushrooms which were highly susceptible to their menace. In addition, these insects also acted as carriers and disseminators of phoretic nematodes and mites. Natural population of Sciarasp. comprised of more number of females than males, former living longer than later. The peak population of Sciara was observed from March to May under Solan conditions. The developmental phase of Sciara from egg to adult was completed in 13.7 days in button mushroom as compared to 16.7 days in oyster mushroom. This fly inflicted heavy quantitative and qualitative yield losses to A. bisporus and P. sajorcaju; later being more susceptible than former. Quantum of damage was influenced by the factors like initial inoculum level, mushroom species involved and cropping stage at which infestation occurred. Infested fruit bodies wore inhealthy appearance. Among the various bioagents tested for their efficacy against the fly, the application of entomopathogenic nematode Heterorhabditisindica and/or Neem Seed Kernel Extract (NSKE) improved the sporophore yields of both the mushrooms as compared to control.
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    ThesisItemOpen Access
    Exploitation of aphelinid endoparasitoids, Encarsia sp. and Eretmocerus sp. and entomopathogenic fungi for the suppression of greenhouse whitefly
    (2010) REECHA; CHAUHAN, USHA
    ABSTRACT The present study entitled “Exploitation of aphelinid endoparasitoids, Encarsia sp. and Eretmocerus sp. and entomopathogenic fungi for the suppression of greenhouse whitefly” was carried out during 2008 and 2009 at Nauni, Solan, H.P. Two endoparasitoids viz. Encarsia sophia (Griault and Dadd) and Encarsia inaron (Walker) and one ecto-endoparasitoid, Eretmocerus delhiensis Mani. were identified and found parasitising the greenhouse whitefly infesting different ornamental plants (fuchsia, rose, sunflower, chrysanthemum, petunia and alstromeria), vegetable crops (tomato, cucumber, egg plant, French bean and pumpkin), strawberry, ashwagandha and milkweed. The mean parasitisation of E. sophia was maximum (3.02%) followed by Er. delhiensis (1.27%) and E. inaron (0.74%) from May to September on all the vegetable crops. The developmental biology of E. sophia was minimum on whitefly infesting fuchsia (13.73 days) and maximum on tomato (19.53 days) plants while that of E. inaron was minimum on tomato (17.90 days) and maximum on French bean (19.00 days). In Er. delhiensis, the duration of the development period was minimum on French bean (13.68 days) and maximum on fuchsia (15.30 days). The true intrinsic rate of increase (rm) of E. sophia was found to be higher on whitefly infesting fuchsia (0.183) than on French bean (0.171). This value for E. inaron on tomato was 0.111 while for Er. delhiensis on French bean it was 0.157. On comparing the efficacy of fungus under laboratory conditions, Verticillium lecanii gave maximum mortality (60.00 %) at 109 spore/ml on 15th day, whereas comparatively low mortality (31.25%) was observed with Paecilomyces fumosoroseus. The combination of V. lecanii with E. sophia was found to be effective and gave maximum mortality (78.33%) on 15th day when E. sophia was released after 3rd day of V. lecanii application.
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    ThesisItemOpen Access
    SCREENING OF Apis mellifera L. COLONIES FOR Varroa TOLERANCE AND EVALUATION OF COLONY PERFORMANCE OF SELECTED STOCK
    (2010) SHARMA, RITESH; GUPTA, J.K.
    ABSTRACT The present studies were carried out for screening out Apis mellifera colonies tolerant to Varroa mites from different apiaries and to evaluate the performance of the selected stock and the colonies raised from it. In the present studies, after screening of honey bee colonies from apiary at Nauni, Solan it was found that the colonies C3, C11, C13 and C14 had lower infestation of mites and were Varroa tolerant. These colonies also removed significantly higher percentage (more than 93.33) of pin killed brood than other colonies and also had higher percentage (58.33) of damaged mites. The maximum type of damage which was found in mites was that of damaged legs (24.71%). The data on screening of colonies from other apiaries revealed that the colony M10 was the best performing colony from migratory group, B9 from colonies at Bhota and Colony K18 was best performing colony from Karnal apiary. Amongst all the colonies at different apiaries the colony K18 was found to have no infestation on adult bees and brood and was, therefore, selected as drone mother colony for mating of second generation queens. The colony C3 from the apiary at Nauni, Solan was selected for raising first generation queens because it was found to be more superior than other selected varroa tolerant colonies. The raised colonies were open mated under Nauni conditions and were further evaluated under Nauni and migratory conditions. The results obtained revealed that daughter colonies were superior than general stock colonies both in terms of colony performance and Varroa tolerance. Post capping duration of the daughter colonies was also found to be shorter (269.78 to 272.89 h) than the general stock colonies (275.22 to 277.78h). Based on the performance of the first generation daughter queens, the colony C3D2 was selected for raising second generation queens. The raised queens were subjected to mating with drones of colony K18 in an isolated mating yard and another set of queens, with drones of unknown parentage under open conditions. It was found that second generation queens irrespective of mating conditions, were equally good in maintaining lower mite infestation, however, the colonies mated under isolation were superior with respect to other parameters related to colony performance.