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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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200631
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Subject: Agricultural Entomology × End date: 2006 × Start date: 2006 ×
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Now showing 1 - 9 of 31
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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, 2006-12-30) GANAPATHI, K.; SHASHIDHAR, VIRAKTAMATH
    Studies on the impact of bee attracts on bee activity and yield parameters of Bt cotton were carried out during kharif season of 2004 at two locations viz., Main Agricultural Research Station, University of Agricultural Sciences, Dharwad (Location-I) and farmer's field, Maradagi (Location-ll), Honeybees and other pollinators constituted 89.10 and 83.77 per cent, and 10.90 and 16.23 per cent of the total pollinators at Location-I and Location-ll. Peak activity of A. dorsata, A. meilifera, A. cerana, A. florea (2.62, 2-33, 1.82 and 1.95, bees/10 flowers/min, respectively) and other pollinators (1.01 pollinators/10 flowers/min) was observed at 1200 h. Fruit boost spray at both the concentrations attracted significantly more number of A. dorsata, A. meilifera and A. florea upto fifth day after spray during first and second spray and upto third day during third spray. Bee-Q spray was the second best in attracting significantly higher number of bees upto third day during first and second spray and upto one day during third spray. Sugar solution and tuberose scented water were able to entice significantly higher number of bees only on first day after spray.
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    ThesisItemOpen Access
    ROLE OF ORGANICS AND INDIGENOUS COMPONENTS AGAINST Spodoptera litura (Fab.) IN GROUNDNUT AND SOYBEAN
    (University of Agricultural Sciences GKVK, Banglore, 2006-12-30) BHARATI, S. M.; R. K. PATIL
    Role of organics and Indigenous components for the management of Spodoptera litura (F.) in groundnut and soybean ecosystem were studied during 2003-04 at Main Agriculture Research Station, UAS, Dharwad. In groundnut ecosystem, organic treatment recorded significantly less number of aphids (8.55/cm twig), thrips (3.57/leaflet), leaf hoppers (1.72/sweep) and S. iitura (2.40 / m.row) compared to integrated nutrient management and inorganic treatment. Similarly in soybean ecosystem also significantly less number of thrips (4.40/leaflet), leaf hoppers (2.90/sweep), S. litura (3.12/m.row) and T. orchalcea (1.88/m.row) were observed in organic treatment compared to INM and RPP. Organically treated groundnut spared the predators by recording significantly higher number of coccinellid beetles (3.71/plant) followed by INM (2.61/plant) and RPP (1.50/plant). Syrphids population (1.11 maggot / m.row) and N. rileyi incidence (1.09 mycosed/ m. row) was found significantly higher in organic treatment. Whereas, statistically at par in INM and RPP.
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    ThesisItemOpen Access
    ROLE OF ORGANICS AND INDIGENOUS COMPONENTS AGAINST Spodoptera litura (Fab.) IN GROUNDNUT AND SOYBEAN
    (University of Agricultural Sciences GKVK, Banglore, 2006-12-30) BHARATI, S. M.; R. K. PATIL
    Role of organics and Indigenous components for the management of Spodoptera litura (F.) in groundnut and soybean ecosystem were studied during 2003-04 at Main Agriculture Research Station, UAS, Dharwad. In groundnut ecosystem, organic treatment recorded significantly less number of aphids (8.55/cm twig), thrips (3.57/leaflet), leaf hoppers (1.72/sweep) and S. iitura (2.40 / m.row) compared to integrated nutrient management and inorganic treatment. Similarly in soybean ecosystem also significantly less number of thrips (4.40/leaflet), leaf hoppers (2.90/sweep), S. litura (3.12/m.row) and T. orchalcea (1.88/m.row) were observed in organic treatment compared to INM and RPP. Organically treated groundnut spared the predators by recording significantly higher number of coccinellid beetles (3.71/plant) followed by INM (2.61/plant) and RPP (1.50/plant). Syrphids population (1.11 maggot / m.row) and N. rileyi incidence (1.09 mycosed/ m. row) was found significantly higher in organic treatment. Whereas, statistically at par in INM and RPP.
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    ThesisItemOpen Access
    MANAGEMENT OF THE COCONUT PERIANTH MITE, Aceria guerreronis Keifer USING SPRAYERS AND NEEM PRODUCTS ALONG WITH SOIL AMENDMENTSMANAGEMENT OF THE COCONUT PERIANTH MITE, Aceria guerreronis Keifer USING SPRAYERS AND NEEM PRODUCTS ALONG WITH SOIL AMENDMENTS
    (University of Agricultural Sciences GKVK, Banglore, 2006-12-30) GIRISHA, R. C.; B. S. NANDIHALLI
    Investigations on coconut perianth mite, Aceria guerreronis Keifer, with respect to surveillance, screening of varieties, different types of sprayers and efficacy of neem products along with soil amendments in the management were carried at the new orchard. Department of Horticulture, UAS, Dharwad and farmers' field near Dharwad during 2004- 05. Surveillance of eriophyid mite on coconut palms indicated that the mite population occurred throughout the year with variation during different seasons of the year. The mite population was high during April-May, 2005. It started declining with the onset of rains during first fortnight of July-2005. The extent of damage due to mite was more than 54% falling in the damage grade of III. Among the different varieties, Gangabondam recorded least numbers of mites and eggs population and also least damage grade and percentage of damaged nuts with highest percentage of healthy nuts. Among different types of sprayers, hand sprayer, foot sprayer provided with trigger valve at proximal part of DHP and supported with bamboo stick and foot sprayer provided with only bamboo stick to DHP were the most effective in reducing mite population and recorded relatively less damaged nuts and damage grade. Foot sprayer provided with trigger valve at proximal part of DHP and supported with bamboo stick and foot sprayer provided with only bamboo stick supported to DHP require less time with minimum labour requirement and cost of dicofol and labour charges.
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    ThesisItemOpen Access
    PHENOTYPIC AND MOLECULAR ANALYSIS OF Helicoverpa armigera (Hubner) ON SELECTED HOSTS
    (University of Agricultural Sciences GKVK, Banglore, 2006-12-30) SUVARNA, PATIL; K. BASAVA, GOWDA
    Investigations on the phenotypic and molecular analysis of Helicoverpa armigera (Hubner) on selected host plants were undertaken at the Institute of Agricultural Biotechnology and in Department of Agricultural Entomology, Dharwad during 2004-2005 revealed significant variation between the populations from ten different host plants. Totally, ten different body colour morphs were encountered across different host plants, with an average numbers of 6.1. Greenish (24.8%) and dark green (16.5%) colour morphs were found to be dominant over other colour morphs. Significantly maximum individuals with no pigmentation (54.40%) on the lateral bands followed by continuous (27.90%) and discontinuous bands (17.70%) were noticed. Mean frequency of pigmentation on thorax and abdomen indicated an average of 6.4, 26.6 respectively across the populations. Mean intensity of pigmentation on thorax was 1.18 and on abdomen it was 1.67. The populations from chickpea, pigeonpea and cotton were found to possess significantly higher phenotypic attributes. WhUe, population from niger and sorghum recorded least morphometric traits. Based on simple matching coefficients, a genetic similarity matrix was constructed to assess the genetic relatedness. Similarity coefficients ranged from 0.25 to 0.82 among populations. The minimum genetic similarity was 0.19 between groundnut and sunflower populations. The highest genetic similarity of 0.72 was evident between the populations of safQower. Overall, it was evident that majority of the H. armigera from crops viz., niger, safflower, greengram, abutilon and lagasca clustered together. Successful pest management requires, early cypermethrin insecticide resistance, such as RAPD-PCR techniques, for that H. armigera was collected from three hosts viz., cotton, chickpea, pigeonpea and screened across two cypermethrin resistance DNA specific marker Le., GFOPAT05300 and GFABO4500, Overall, all population for GFOPATOSaoo marker showed 100 per cent fidelity in all the three crops, and for GFABO4500 marker, cotton, pigeonpea showed and chickpea showed 89.47, 100.0 and 90.9 per cent fidelity.
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    ThesisItemOpen Access
    ROLE OF HONEY BEES ON SEED PRODUCTION OF RADISH
    (University of Agricultural Sciences GKVK, Banglore, 2006-12-30) G. S. CHANDRASHEKAR; H. N. SATTIGl
    Studies conducted to evaluate the role of honey bees on seed production of radish was carried out at Marewada village nearer to University of Agricultural Sciences, Dharwad during rabi season of 2004-05. Total of 16 insect species were recorded as pollinator fauna of radish amongst which Apis florea F. was the predominant pollinator constituting 42.20 per cent of the total followed by A. cerana P. (27.60%), A. dorsata F. (14.62%) and other pollinators (15.57%). Foraging activity of different honey bee species varied however, peak foraging activity of A. florea, A. cerana and A. dorsata were observed at 1000 hr to 1400 hr. Whereas, other pollinators were active at 0600 hr to 1000 hr and 1600 hr to 1600 hr of the day. Spraying of cacambe (10%) and jaggery solution (10%) had enticed more number of pollinators and thereby enhancing the number of seeds per siliqua (7.40 seeds/siliqua Vs 4.00 and 3.00 seeds/siliqua in crop without any spray and caged plot without bees, respectively).
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    ThesisItemOpen Access
    EFFECT OF DIFFERENT FORMULATIONS OF Nomurdea rileyi (Farlow) Samson AND SPRAY EQUIPMENTS IN THE MANAGEMENT OF TOBACCO CATERPILLAR IN GROUNDNUT AND POD BORER IN CHICKPEA
    (University of Agricultural Sciences GKVK, Banglore, 2006-12-30) S. D., NAGARAJA; PATIL, R.K
    The effect of different formulations of Nomuraea rileyi (Farlow) Samson and spray equipments in the management of tobacco caterpillar in groundnut and pod borer in chickpea was studied during kharif and rabi season during 2002-03 at the Main Agricultural Research Station, University of Agricultural Sciences, Dharwad. Different formulations of N. rileyi viz., oil based, wettable powder and crude I formulation were evaluated against third instar larvae of Spodoptera litura and Helicoverpa armigera. The results indicated in vitro that mortality of S. litura and H. armigera reached 95.00 and 93.20 per cent, respectively after 10 DAT with oil based formulation of N. rileyi @ 2 x 10® conidia per ml followed by wettable powder formulation and crude formulation. In groundnut crop ecosystem, different formulations of N. rileyi and spray equipments were evaluated, the results indicated that oil based formulation of N. riieyi with knapsack sprayer recorded significantly higher mycosis (47.43%), followed by wettable powder and crude formulation. With respect to cost economics concerned oil based formulation of N. rileyi @ 2 x 10^^ conidia per ha recorded net returns of Rs. 17,360 with B;C ratio of 2.8, which is next best to RPP. In chickpea ecosystem, among different formulations of N. rileyi and spray equipments, oil based formulation of N. rileyi with knapsack sprayer recorded significantly higher mycosis (42.96%) with lowest per cent pod damage (26.43%). With respect to cost economics concerned oil based formulation of N. rileyi with knapsack sprayer recorded net returns of Rs. 11,952 with B:C ratio of 2.9, which is next best to RPP. The highest persistent toxicity (PT) value was recorded in oil based formulation of N. rileyi by recording 0.9 x 10^ CPU (colony forming unit) per 5 leaves followed by wettable powder and crude formulation.
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    ThesisItemOpen Access
    INVESTIGATIONS ON NUCLEOPOLYHEDROSIS VIRUS OF RED-HEADED HAIRY CATERPILLAR, AMSACTA ALBISTRIGA (WALKER) (LEPIDOPTERA: ARCTHDAE)
    (University of Agricultural Sciences GKVK, Banglore, 2006-12-30) BASANTH, , Y.S.; V.T. SANNAVEERAPPANAVAR
    No Abstract
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    ThesisItemOpen Access
    INVESTIGATIONS ON INSECTICIDE RESISTANCE IN DIAMONDBACK MOTH, PLUTELLA XYLOSTELLA L. (LEPIDOPTERA: YPONOMEUTIDAE)
    (University of Agricultural Sciences GKVK, Banglore, 2006-12-19) SHANKARA, MURTHY, M.; V.T. SANNAVEERAPPANAVAR
    No Abstract