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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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19992
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Subject: Entomology × Author: BHARDWAJ, PIAR CHAND × Start date: 1992 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Laboratory Studies on Trichogrammatoidea bactrae Nagaraja as an Egg Parasitoid of Diamondback Moth Piutl/la xylostella (Linnaeus)
    (UHF,NAUNI, 1999) BHARDWAJ, PIAR CHAND; Gupta, Prem Raj
    Laboratory studies on Trichogrammatoidea bactrae Nagaraja as an egg parasitoid of diamondback moth, Piute/la xy/ostel/a (L.), were caaied out at 26±1°C and 50-80. per cent relati\le humidity duril:tg 1998·99 at Nauni, Solan with o't>jectives of detennining pruasitl.7.atlon potential. emergence, sex ratio. fecunditiy, longevity and mortality pattern on P. xylostel/a and its laboratory host Corcyra cephalonica (Stainton) along with suitable storage temperatute for hotding parasitized eggs of C. cephalonfca, lo its laboratory maintained culture, upto 2 adult parasitoids per pardSitized C cephalonica egg emerged with almost equal chan.ces of getting I or 2 parasitoids. Females of 1: baatrae parasitized on an average 6.4 eggs of C ieph.alonica and 4.6 eggs of P. rylostella during its survival of 2.3 and l.7 days. respectively. The fecundity was 9.1 on eggs of C. cepholonico and 6.3 on eggs of P. xylostella but average adult emcrgence'from these parasitized eggs was 6.2 and 3.9. ·(0.97 and 0.85 per egg). respectively. The mean nwnbc.r. of eggs with exit bole was 4.3 and 2.9 for C cephalonita and /'. zylostella. Amongst eggs without adult emergence hole, dead larvae, pupae and. adults were prese.nt; their percentage was 9.2. 60.4 and 30.4 in C. c~phalonica eggs and 8.7, 57.5 and 33.8 in'P. rylo.vtella eggs. respe.c1lvel~·. Tiius, maximum mor1ality occurred In pup:il stage on bOlh l.hese hostS. The female : m11 lc sc." r;il.io wns female biased (2. Is: I n11d L82: l) and perce01age of females was 68.6 and 64.6, respcc1lvcly for these two hosts. For moderate emergence of the parasitoid from eggs stored on cards at low temperature. it was found that the storage after 3 to 7 days of parasitiz,ation for 5 days at to0c resulted in above SO per cen.t adult emergence and eggs could not be stored for more than 7 days. However, at I s0c these could be stored upto 18 days bul with low emergence (H.2%). The effective trealln1'fll proved to be storage of r.richo-<:ards ~ ts0c for s days after S days of parasiti23tion (72.3% eggs witl1 emergence hole}, at ts0c for IO days after 5 days of parasiUzation (69.8%), and at 1s0c for 5 clays after 3 clays of parasiuzation (69.4%). [n view of this, storage combination at 1 s0c for 10 days after 5 day'S of parasilizalion will be a right choice and storage can be made uplo 15 days at tl1ese conditions bul at the cost of reduced adult emergence (40%).
  • Thumbnail Image
    ThesisItemOpen Access
    Laboratory Studies on Trichogrammatoidea bactrae Nagaraja as an Egg Parasitoid of Diamondback Moth Piute/la xylostella (Linnaeus)
    (UHF,NAUNI, 1999) BHARDWAJ, PIAR CHAND; Gupta, Prem Raj
    Laboratory studies on Trichogrammatoidea bactrae Nagaraja as an egg parasitoid of diamondback moth, Piute/la xy/ostel/a (L.), were caaied out at 26±1°C and 50-80. per cent relati\le humidity duril:tg 1998·99 at Nauni, Solan with o't>jectives of detennining pruasitl.7.atlon potential. emergence, sex ratio. fecunditiy, longevity and mortality pattern on P. xylostel/a and its laboratory host Corcyra cephalonica (Stainton) along with suitable storage temperatute for hotding parasitized eggs of C. cephalonfca, lo its laboratory maintained culture, upto 2 adult parasitoids per pardSitized C cephalonica egg emerged with almost equal chan.ces of getting I or 2 parasitoids. Females of 1: baatrae parasitized on an average 6.4 eggs of C ieph.alonica and 4.6 eggs of P. rylostella during its survival of 2.3 and l.7 days. respectively. The fecundity was 9.1 on eggs of C. cepholonico and 6.3 on eggs of P. xylostella but average adult emcrgence'from these parasitized eggs was 6.2 and 3.9. ·(0.97 and 0.85 per egg). respectively. The mean nwnbc.r. of eggs with exit bole was 4.3 and 2.9 for C cephalonita and /'. zylostella. Amongst eggs without adult emergence hole, dead larvae, pupae and. adults were prese.nt; their percentage was 9.2. 60.4 and 30.4 in C. c~phalonica eggs and 8.7, 57.5 and 33.8 in'P. rylo.vtella eggs. respe.c1lvel~·. Tiius, maximum mor1ality occurred In pup:il stage on bOlh l.hese hostS. The female : m11 lc sc." r;il.io wns female biased (2. Is: I n11d L82: l) and perce01age of females was 68.6 and 64.6, respcc1lvcly for these two hosts. For moderate emergence of the parasitoid from eggs stored on cards at low temperature. it was found that the storage after 3 to 7 days of parasitiz,ation for 5 days at to0c resulted in above SO per cen.t adult emergence and eggs could not be stored for more than 7 days. However, at I s0c these could be stored upto 18 days bul with low emergence (H.2%). The effective trealln1'fll proved to be storage of r.richo-<:ards ~ ts0c for s days after S days of parasiti23tion (72.3% eggs witl1 emergence hole}, at ts0c for IO days after 5 days of parasiUzation (69.8%), and at 1s0c for 5 clays after 3 clays of parasiuzation (69.4%). [n view of this, storage combination at 1 s0c for 10 days after 5 day'S of parasilizalion will be a right choice and storage can be made uplo 15 days at tl1ese conditions bul at the cost of reduced adult emergence (40%).