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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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Subject: Entomology × End date: 2018 ×
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Now showing 1 - 9 of 390
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    ThesisItemOpen Access
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    ThesisItemOpen Access
    EVALUATION OF WILD CHERRY PRUNUS PUDDUM ROXB. AS A HONEY PLANT
    (COLLEGE OF AGRICULTURE,SOLAN, 1985) REDDY, CHANDRA MOHAN; GUPTA, JITENDER KUMAR
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    ThesisItemOpen Access
    STUDIES ON THE BIOLOGY AND ENDOCRINOLOGY OF THE HONEYBEES,APIS SPP.
    (COLLEGE OF AGRICULTURE,SOLAN, 1978) MISHRA, R.C.; DOGRA, G.S.
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    ThesisItemOpen Access
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    ThesisItemOpen Access
    STUDIES ON CROP ROTATION FOR MANAGEMENT OF Meloidogyne incognita (Kofoid and White) CHITWOOD IN VEGETABLE CROPS UNDER PROTECTED CULTIVATION
    (UHF, NAUNI, 2018-12) SANGMA, HANSA NORA K; SINGH, MOHINDER
    ABSTRACT The research investigation entitled “Studies on crop rotation for management of Meloidogyne incognita (Kofoid and White) Chitwood in vegetable crops under protected cultivation” were undertaken to record the reproduction of M. incognita on ten selected vegetable crops under pot conditions and to study the possible effect of different cropping modules for three consecutive seasons as a potential suppressants of the root-knot nematode under polyhouse conditions. In pot experiment, 500 Juveniles were inoculated per pot and the highest juvenile penetration per root system was recorded in tomato with 40.2 juveniles with per cent penetration of 8.04. Cauliflower had the least juvenile penetration of only 10.0. Similarly, the highest reproductive factor was found in tomato (7.36) and cucumber (7.04). Cauliflower had the minimum RF of 1.08. Lettuce, chinese cabbage, spinach, bell pepper and coriander showed RF>1 but <3 and can be listed as moderate hosts of root-knot nematode. In the polyhouse experiment, tomato and cucumber had the maximum gall indices of >4, whereas cauliflower, coriander and spinach had gall indices near to 1. The nematode damage adversely affected the yield of the vegetable crops grown under study. While working on the benefit cost ratio, Module 7 (tomato-cauliflower-spinach) showed the highest BC ratio of 4.45:1 followed by Module 4 (tomato-cabbage-chinese cabbage). The BC ratio was found least in Module 6 (capsicum-cauliflowercoriander). Cucumber-cabbage-Chinese cabbage (Module 5) was found to have a maximum suppressing effect against M. incognita population whereas, tomato-pea (Module 1) and bell pepper-pea (Module 2) cropping sequences were found to enhance the nematode population. Cabbage, cauliflower in rotation decreased rootknot nematode population, while tomato, cucumber and pea supported higher nematode multiplication as compared to moderate hosts like lettuce, spinach, coriander, bell pepper and Chinese cabbage. The crop rotation of tomato and cucumber with cabbage and cauliflower has been suggested for nematode management under protected cultivation.
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    ThesisItemOpen Access
    SPATIAL DISTRIBUTION AND SEQUENTIAL SAMPLING PLAN FOR Tuta absoluta (Meyrick) AND ITS NATURAL ENEMIES IN TOMATO
    (UHF, NAUNI, 2018-11) CHOUDHARY, KHUSHI RAM; SHARMA, P L
    ABSTRACT Tuta absoluta (Meyrick) is one of the most destructive pests of tomato throughout the world. Present study deals with the spatial distribution and sequential sampling plan for this pest and the associated predatory bug, Nesidiocoris tenuis (Reuter). The pest and the predator existed throughout the growing season both in open fields and polyhouse with larval density varying from 1.01 to 5.44 under open fields and 0.57 to 10.71 under polyhouse conditions, respectively. In both the situations the pest as well as the predator followed aggregated distribution and the data fitted well the Taylor’s power law and Iwao patchiness regression. Within plant T. absoluta larvae were distributed on all the three plant strata with slight preference to the middle stratum (open field: 33.5-46.8%; polyhouse: 30.3-43.2%) than the bottom (open field: 22-36.4%; polyhouse: 28.8-36.9%) or the top (open field: 21.7-36.2%; polyhouse: 21.8 to 34.4%). Mine count was reliably used to estimate larval density and to predict the possible fruit damage on week later. The optimum sample size decreased with the increase in density and decrease in precision and vice-versa. Control decision lines for T. absoluta were developed on the basis of larval and mine density separately for open field and polyhouse conditions in the presence and absence of N. tenuis. The maximum numbers of sampling units in case of sequential sampling were less as compared to stratified random sampling and the presence of the predator pushed the decision lines up in each case. Present study provides useful information for effective monitoring and taking suitable pest management decision for the pest.
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    ThesisItemOpen Access
    STUDIES ON PREDATORY FAUNA OF COTTON APHID, Aphis gossypii GLOVER (HEMIPTERA: APHIDIDAE) IN CUCUMBER
    (UHF, NAUNI, 2018-10) KUMARI, DEEKSHA; VERMA, S C
    ABSTRACT The present investigations entitled “Studies on Predatory Fauna of Cotton Aphid, Aphis gossypii Glover (Hemiptera: Aphididae) in,r” were conducted during the year 2017 at Y.S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh. During the course of study, 11 species of predators viz. Coccinella septempunctata Linnaeus, Hippodamia variegata (Goeze), Harmonia dimidiata (Fabricius), Oenopia kirbyi Mulsant, Oenopia sauzetii Mulsant, Oenopia sexareata (Mulsant), Scymnus nubilus (Mulsant), Cheilomenes sexmaculata (Fabricius), Chrysoperla zastrowi sillemi (Esben-Peterson), Mallada sp. and Episyrphus balteatus (DeGeer) were found associated with A. gossypii. Among different predators, C. septempunctata was the most abundant contributing 38.12 per cent of the total predator community The average incubation, larval, pre pupal and pupal period of C. septempunctata was 3.2, 13.34, 1.90 and 3.90 days, respectively. The female and male longevity of C. septempunctata was 43.84 and 35.80 days, respectively, whereas, mean fecundity was 189.60 eggs/ female. Incubation, total larval, pre pupal and pupal period of O. kirbyi was 3.40, 15.26, 1.30 and 4.80 days, respectively. Female and male longevity of adult beetles of O. kirbyi was 38.50 and 31.38 days, respectively, whereas, female laid 177.60 eggs/ female. Average incubation, larval, pre pupal and pupal period of C. zastrowi sillemi was 2.60, 11.62, 1.10 and 8.30 days, respectively. Male longevity was 26.80 days, whereas, female laid on an average of 398.90 eggs/ female in their life span of 37.60 days. Incubation, larval, pre pupal and pupal period of Mallada sp. was 2.90, 12.68, 1.40 and 9.10 days, respectively. Female and male longevity of Mallada sp. was 46.28 and 27.36 days, respectively, whereas, the female laid on an average 128.58 eggs/ females. Total larval consumption of C. septempunctata, O. kirbyi, C. zastrowi sillemi and Mallada sp. was 579.92, 535.90, 431.06 and 398.50 aphids, respectively. Adult females of C. septempunctata and O. kirbyi consumed 3376.94 and 2634.78 aphids, whereas, adult males of C. septempunctata and O. kirbyi consumed 2457.84 and 2012.52 aphids, respectively. All the predatory species i.e. C. septempunctata, O. kirbyi, C. zastrowi sillemi and Mallada sp. showed a Type II functional response and the attack rate for all the predators increased and handling time decreased with the advancement in developmental stages. Hence, among coccinellids C. septempunctata is the most abundant predator and feeding potential was higher than O. kirbyi, whereas, among chrysopids C. zastrowi sillemi was most abundant and feeding potential was higher than Mallada sp. Thus, C. septempunctata and C. zastrowi sillemi can be utilized as a component of integrated pest management programme for the m
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    ThesisItemOpen Access
    BIOLOGY AND MANAGEMENT OF CABBAGE BUTTERFLY (Pieris brassicae L.) ON CAULIFLOWER CROP
    (UHF, NAUNI, 2018-10) THIND, DILRAJPREET SINGH; SHARMA, KRISHAN CHANDER
    ABSTRACT The present studies on “Biology and management of cabbage butterfly (Pieris brassicae L.) on cauliflower crop.” was carried out in the Department of Entomology, College of Horticulture on cauliflower crop. The indices of cabbage butterfly under field conditions revealed that the eggs were first recorded on February 8 during 2018, the peak egg count of 28.4/10 plants was found on February 16, whereas no eggs were recorded after 24 April, 2018. However, the larvae were first recorded on February 12 during 2018, the peak larval count of 26.2 larvae/10 plants were recrded on February 20, whereas no larva was found after the 28 April, 2018. Studies on biology of the P. brassicae revealed that the pest passed through 4 stages viz., egg, larva, pupa and adult. Eggs hatched in 3-7 days with an average duration of 4.40±0.37 days. It had five larval instars. The mean duration of the first, second, third, fourth and fifth larval instar was 3.20±0.20 days, 3.50±0.17 days, 4.00±0.30 days, 4.40±0.16 days and 4.00±0.26 days respectively. The mean pupal period and the total development period (from egg to adult emergence) was 12.20±0.25 days and 35.90±1.07 days, respectively. Life fertility table was constructed on cauliflower and different fertility parameters were calculated, which revealed that the values of the gross reproductive rate (GRR) and the net reproductive rate (Ro) of P. brassicae were 120.38 and 67.87 female eggs/female, respectively. The approximate generation time (Tc) was 39.05 days and the innate capacity of natural increase (rc) was 0.1080 female/female/day. The arbitrary value of rc was used to determine the true intrinsic rate of increase (rm) graphically which was found to be 0.1082. The finite rate of increase (λ) was 1.11 females/day, while the true generation time (T) was 38.98 days. The doubling time of P. brassicae on cauliflower was 6.41 days and the weekly multiplication rate was found to be 2.13 days. Six pesticides viz., Malathion, Bacillus thuringiensis (Bt.), Beauveria bassiana, neem seed kernel extract, drake seed extract and jeevamrit were evaluated for their efficacy against the larvae of the cabbage butterfly on cauliflower crop under field conditions. The order of effectiveness of treatments based on mortality of the larvae was Malathion (0.1%) > Malathion (0.05%) > Bacillus thuringensis (0.2%) > Bacillus thuringensis (0.1%) > Beauveria bassiana (2.0%) > Neem seed kernel extract (8.0%) > Beauveria bassiana (1.0%) > Neem seed kernel extract (4.0%) > Drake seed extract (10%) > Jeevamrit (20%), Drake seed extract (5.0%) > Jeevamrit (10%), respectively.
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    ThesisItemOpen Access
    EFFECT OF NEONICOTINOIDS ON COLONY PERFORMANCE OF Apis mellifera L. IN MUSTARD
    (UHF, NAUNI, 2018-09) RAM, BUDHI; SHARMA, HARISH KUMAR
    ABSTRACT The present study was conducted to assess the effect of neonicotinoids on colony performance of Apis mellifera L. in mustard. The study was conducted under field, semi field and laboratory conditions during 2017-2018. Under field (thiamethoxam @ 0.1g/l) and semi field conditions (thiamethoxam @ 0.1g/l and imidacloprid @ 0.3ml/l) was sprayed on mustard bloom to evaluate the effect on foraging activity, brood area, nectar stores, pollen stores and mortality of foragers. Laboratory studies were conducted to establish the contact and oral toxicity of thiamethoxam and imidacloprid to A. mellifera adults and larvae. Under field conditions, average quantum of bee activity of A. mellifera remained statistically low upto 12th day (3.51 to 8.56 bees/m2/5min) after spray of thiamethoxam on mustard bloom in comparison to pre-count (18.44 bees) and control (17.11 to 19.19 bees). Unlike foraging activity, non significant effect on average nectar, pollen stores and bee strength in thiamethoxam treated plots during the period of observations in comparison to pre-count. The average bee mortality of A. mellifera was significantly higher on 1st (112.5 bees/DBT/day) 2nd (112 bees) and 3rd day (46.33 bees) after spray in comparison to mortality observed in control. In semifield studies, foraging activity of A. mellifera on mustard bloom reduced significantly on 2nd day after spray of thiamethoxam (3.22 bees/m2/5min) and imidacloprid (2.21 bees) as compared to pre-count and control (37.65 bees). Significant recovery was recorded in the activity of A. mellifera on 6th day in thiamethoxam (6.14 bees/m2/5min) and imidacloprid (10.23 bees) after spray. Activity of A. mellifera in both the treatments (thiamethoxam and imidacloprid) remained statistically low upto 8th day after spray, which thereafter became normal and statistically same with pre-count and control by the 10th day after spray. Thiamethoxam and imidacloprid spray in mustard also affected colony parameters of introduced A. mellifera, which leads to significant decrease in brood area (7th to 21st day), nectar stores (7th to 28th day) and pollen stores (7th to 21st day) and increased significantly on 28th day after spray. The mortality of A. mellifera was significantly higher on 1st and 2nd day after spray of thiamethoxam (293 and 231.83 bees/DBT/day) and the same trend was also recorded in imidaclprid (70.17 and 74bees) spray in comparision to control (4.17 and 9.83). The contact toxicity of thiamethoxam and imidacloprid to A. mellifera adults was 0.019 and 0.037 µg/bee, respectively after 24 hours exposure period under laboratory conditions. The oral LD50 was recorded 0.0038 and 0.006µg/bee after ingestion of 2 µl of sugar syrup contaminated with thiamethoxam and imidacloprid, respectively within an exposure period of 24 hours. Thus it has been concluded from the present investigations that foraging activity of A. mellifera was negatively affected in both the fields, colony parameters (only in semi field conditions) and also mortality was higher in treated mustard crop suggesting that neonicotinoids have sublethal and lethal effects on colony performance of A. mellifera at the field relevant doses. Hence, it is suggested that neonicotinoids namely thiamethoxam and imidacloprid should be applied in a restricted manner to conserve the natural biodiversity.