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University of Agricultural Sciences, Bengaluru

University of Agricultural Sciences Bangalore, a premier institution of agricultural education and research in the country, began as a small agricultural research farm in 1899 on 30 acres of land donated by Her Excellency Maharani Kempa Nanjammanni Vani Vilasa Sannidhiyavaru, the Regent of Mysore and appointed Dr. Lehmann, German Scientist to initiate research on soil crop response with a Laboratory in the Directorate of Agriculture. Later under the initiative of the Dewan of Mysore Sir M. Vishweshwaraiah, the Mysore Agriculture Residential School was established in 1913 at Hebbal which offered Licentiate in Agriculture and later offered a diploma programme in agriculture during 1920. The School was upgraded to Agriculture Collegein 1946 which offered four year degree programs in Agriculture. The Government of Mysore headed by Sri. S. Nijalingappa, the then Chief Minister, established the University of Agricultural Sciences on the pattern of Land Grant College system of USA and the University of Agricultural Sciences Act No. 22 was passed in Legislative Assembly in 1963. Dr. Zakir Hussain, the Vice President of India inaugurated the University on 21st August 1964.

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Subject: Agricultural Entomology × End date: 2007 × Start date: 2007 × Type: Thesis ×
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Now showing 1 - 9 of 53
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    ThesisItemOpen Access
    STUDIES ON SYRPHID PREDATORS OF SUGARCANE WOOLLY APHID (Ceratovacuna lanigera Zehntner)
    (University of Agricultural Sciences GKVK, Banglore, 2007-09-01) LIKHIL E. K.; C. P. MALLAPUR
    The role played by syrphids in the management of Sugarcane Woolly Aphid were studied under both laboratory and field conditions during 2005- 06 at Department of Agricultural Entomology, College of Agriculture, Dharwad and at farmer's fields. The syrphid species associated with SWA comprised of two species viz., Eupeodes con/rater and Dideopsis aegrota and E. coiifrater was the major species occurring in all the locations (62.58 to 100%). Two groups of natural enemies on syrphids were identified, one larvalpupal parasitioid belonging to family Ichneumonidae [Diplazon laetatorius) and three species of bacterial pathog'iiis viz., Citrobactor sp., Aeromonas sp. and Bacillus sp. The breeding of E. con/rater was not possible in caged condition. The predator completed three larval instars with a total larval period of 12.12+0.31 (10-14) days. Pupal period ranged from 7 to 9 days v/ith a mean of 8.30+0.26 days. The longevity of male and female was recorded at 13.27+0.89 (10-20) days and 17.6+1.52 (10-22) days, respectively. A single larva of E. confrater consumed 442.74 sugarcane woolly aphids in its total larval period at a rate of 36.53 aphids/individual/day. The instarwise consumption was 45.83, 133.52 and 263.39 aphids during first, second and third instar, respectively. In the absence of food, Eupeodes late instar larvae fed on eggs, early and late instars of Micromus and early instars of Diphcu Intum, the late instar Dipha larvae consumed early instar Eupeodes larvae. In the field study, molasses and fruit fly diet attractants recorded comparatively more syrphid larval population (1.13 and 0.92 larvae/leaf) and registered lower mean aphid grades. All the tested chemical insecticides viz., thiamethoxam, chlorpyriphos and malathion were found highly toxic to syrphids. However, the safest treatment was vitex + neem + lantana which recorded least reduction of syrphid population in treated plots (3.72 and 6,13%) as well as under laboratory condition (23.01% mortality).
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    ThesisItemOpen Access
    BEE POLLINATION AND ITS IMPACT ON RIDGE GOURD {Lufa acuiangula (L.) Roxb.) YIELD
    (University of Agricultural Sciences GKVK, Banglore, 2007-01-20) SHANKARA, MURTHI, J.; H.N. SATTIGI
    Studies were made on pollinator fauna, foraging behaviour, influence of attractants in attracting the bees and effect of bee pollination on qualitative and quantitative parameters of ridgegourd at Narendra near to MARS, University of Agricultural Sciences, DhanA/ad, during kharif season of 2003. Among 8 species of pollinators. Apis fiorea F. was the most predominant constituting 41.00 per cent of the total pollinators followed by A. cerana (22.00%), A. dorsata (16.00%) and other pollinators (21.00%). Peak foraging activity of all the pollinators was observed at 1600 h of the day, while foraging activity was minimum during 1200 and 1400 h of the day. Foraging activity of all the pollinators was maximum during 3"^ and 4"^ week after flowering.
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    ThesisItemOpen Access
    ESTIMATION OF CROP LOSS, DETERMINATION OF ECONOMIC INJORY lEUEl AND MANAGEMENT OF CAPSOLE DORERS, Helicompaarmigera{MMet) AND Heliothispeltigerai^zWX) IN SAFFLOWER
    (University of Agricultural Sciences GKVK, Banglore, 2007-01-20) A. VENKATA, RAJESH; K. BASAVANA, GOUD
    Incidence of capsule borers In four districts of northern Karnataka revealed that the pest was present in all the four districts and the capsule damage varied from 26.92 to 37.90 per cent. More than 31 per cent capsule damage was observed in Dharwad and Gadag districts; while it was less than 28 per cent in Belgaum and Haveri districts. In different cropping systems, minimum capsule damage (20.00%) was noticed on safflower when Intercropped with jowar, whereas it was maximum (40.20%) when intercropped with chickpea. Highest mean number of capsule borers {H. armigera and H. peltigera) (4.75), Spodoptera litura (Hub.) (0.70), Perigia capensis (Walkar) (0.77) and Thysanoplusia orichalcea (Fab.) (0.80) were recorded in Gadag district.
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    ThesisItemOpen Access
    CROP LOSS ESTIMATION AND MANAGEMENT OF SHOOT BUG, Peregrinus maidis (Ashmead) IN RABI SORGHUM
    (University of Agricultural Sciences GKVK, Banglore, 2007-01-20) RAJU, ANAJI; R. A. BALIKAI
    The investigations were undertaken at the AlCRP on sorghum, RARS, Bijapur during rabi 2004-05 on loss estimation, varietal reaction and management of shoot bug. Natural infestation of shoot bug resulted in the yield loss of 11.16, 21.11 and 2.97% in grain yield, fodder yield and 1000-grain weight across the different dates of sowing. The unprotected plot recorded significantly higher sorghum stripe disease incidence as compared to protected ones (18.72% and 9.51%). Under graded level of infestation, the yield reduction ranged from 7,1 to 51.3% and 9.1 to 49.7% in grain and fodder yield with release of 5 to 30 first instar nymps per plant, respectively. The economic injury level of shoot bug was worked out to be 3.13 bugs per plant. Among the 80 genotypes screened against shoot bug the lines viz., 61611, 61612, CK 608, Swati, and RS 29 were promising by recording lower population (<2 shoot bugs/plant). Other entries recorded shoot bug population between 2 to 10 p
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    ThesisItemOpen Access
    A COMPARATIVE ANALYSIS OF THE PREFERENCE AND PERFORMANCE OF MARKETING ORGANIZATIONS OF FRUITS AND VEGETABLES IN BANGALORE RURAL AND URBAN DISTRICTS
    (University of Agricultural Sciences GKVK, Banglore, 2007-10-05) NETRAVATHL, G.; N.S. SHIVALINGE, GOWDA
    No Abstract
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    ThesisItemOpen Access
    BIOECOLOGY AND INFESTATION BEHAVIOUR OF THE RICE MEAL MOTH, Corcyra cephalonica STAINTON (LEPIDOPTERA: PYRALIDAE) ON FOXTAIL MILLET, Setaria italica (L.)
    (University of Agricultural Sciences GKVK, Banglore, 2007-10-05) NIRMALA, P.; P. S. JAGADISH
    The incubation period of C. cephalonica on Foxtail millet at 25 ± and 71 ± 1.2 per cent relative humidity varied from 4 to 7 days (mean 4.66 days). Freshly hatched larva was creamy white coloured and passed through six instars. The average duration of each larval instar was 4.13, 5.04, 3,73, 3.40, 5.46 and 9.69 days, respectively and total larval duration took 31.26 days and pupal duration was 15.06 days. Developmental period took 41 to 59 days (average 51.95 days). Full grown last instar larva measured 11.02 mm in length. The mating period ranged from 60 to 130 minutes. The preovipositional period ranged from 1 to 2 days. Eggs were laid singly or in groups of 3 to 5 eggs in rare cases. Fecundity ranged from 90 to 150 eggs; oviposition period lasted for 6 to 8 days. Adult females, irrespective of food availabihty, lived longer than the males. The nature of larval development did not differ on Foxtail millet. The larva started forming grain cluster and started feeding inside the grain cluster. Finally each larva makes 3 to 4 such grain cluster and mixed with broken grains excreta and frass. The population stress study showed that a high release of initial moth pairs (12 pairs) resulted in the early operation of crowding effect and marked reduction in the population in subsequent generations. In the studies on the influence of different grain properties on C. cephalonica infestation, the broken grains and flour of Foxtail millet were most preferred for growth and development. Among the different varieties tested, Prasad variety offered maximum resistance to C. cephalonica infestation, which was reflected in terms of lesser adult emergence from this variety. Among varying grain moisture contents tested, 15.53 % was most favourable for pest which reflected in terms of higher survival and shorter developmental period. In host preference study, maize was the most preferred host which showed higher moth emergence and weight loss due to infestation.
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    ThesisItemOpen Access
    BIOLOGY AND MANAGEMENT OF RICE WEEVIL, Sitophilus oryzae L. IN POP SORGHUM
    (University of Agricultural Sciences GKVK, Banglore, 2007-08-29) KAVITHA JADHAV; SHEKHARAPPA
    Investigations on rice weevil, Sitophilus oryzae (L.) with respect to biology, reaction of genotypes, efficacy of grain protectants and organoleptic evaluations were carried out under laboratory condition at Department of Agricultural Entomology, University of Agricultural Sciences, Dharwad during 2005-06. The biology of the rice weevil, S, oryzae on pop sorghum grain variety Talakal-6 revealed the larval and pupal period of 25.8 ± 3.70 and 7.4 + 0.54 days, respectively. Total life cycle from egg to adult completed in 40.2 + 4.69 days. Among the different grain sorghum and pop sorghum varieties screened against S. oryzae, maximum per cent of grain damage, per cent weight loss, population buildup and minimum per cent of germination was observed in Shiggaon local, while Mugad local was proved relatively resistant. DSV-3 was found relatively resistant among grain sorghum varieties.
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    ThesisItemOpen Access
    ROLE OF BIORATIONALS IN THE MANAGEMENT OF DIAMONDBACK MOTH, Plutella xylostella L. IN CABBAGE ECOSYSTEM
    (University of Agricultural Sciences GKVK, Banglore, 2007-08-29) NEELAKANTH, I. SAJJAN; R.K.PATIL
    No Abstract
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    ThesisItemOpen Access
    IMPACT OF BEE ATTRACTANTS ON BEE ACTIVITY AND YIELD PARAMETERS OF Bt COTTON
    (University of Agricultural Sciences GKVK, Banglore, 2007-08-29) GANAPATHI, K.; SHASHIDHAR, VIRAKTAMATH
    No Abstract