Thumbnail Image

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.

Browse

20091
Reset filters
Subject: Microbiology × End date: 2009 × Start date: 2000 ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    MICROBIAL CONTROL OF TOMATO FRUIT BORER, Helicoverpa armigera (Hubner) BY ENTOMOPATHOGENIC FUNGAL AGENTS
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2009-07-10) PESAL, SAVITHA; SHIVAPRAKASH, M K
    The investigations on “Microbial control of tomato fruit borer, Helicoverpa armigera (Hubner) by entomopathogenic fungal agents” were carried out during 2008-2009 at the Bio-Control Research Laboratories (BCRL), Pest Control (India) Pvt. Ltd., located at Sriramanahalli, Doddaballapur road, Bangalore. Dose mortality response between Helicoverpa armigera and Beauveria bassiana, Metarhizium anisopliae, Nomuraea rileyi and Verticillium lecanii in the laboratory indicated that mortality of larvae increased with increase in concentration and exposure period. Younger larvae found to be more susceptible to fungal species than older ones. N. rileyi (Nr1) proved superior to B. bassiana (Bb1, Bb2, Bb3) and M. anisopliae (Ma1, Ma2, Ma3). Whereas, V. lecanii (Vl1, Vl2, Vl3) failed to cause disease in H. armigera larvae. N. rileyi (Nr1) was used for further studies. Among the storage conditions, Nomuraea rileyi conidia in wettable powder formulation and oil based formulation recorded highest per cent germination in refrigerated conditions (40C) than at room temperature (27OC). The wettable powder formulation of Nomuraea rileyi viz., Bentonite + glucose (7:1) and Bentonite recorded 71 and 69 per cent mortality, respectively and the oil based formulations viz., sunflower oil, sesame oil and ground nut oil recorded 82, 77 and 77 per cent mortality respectively against 3rd instar larvae of H. armigera under laboratory conditions. In the field experiment, Nomuraea rileyi in sunflower oil formulation (15.43 t/ac) and Bentonite formulation (14.83 t/ac) were proved better. Significantly higher yield was noticed in chemical control (17.28 t/ac).