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

20141
Reset filters
Subject: Entomology × Author: AVINASH, T G × End date: 2019 × Start date: 2000 × Type: Thesis ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    EFFICACY OF SELECTED INSECTICIDES AGAINST TERMITES
    (University of Agricultural Sciences GKVK, Bangalore, 2014-07-07) AVINASH, T G; KUMAR, N G
    Present investigation was carried out at the botanical garden, University of Agricultural Sciences, GKVK, Bangalore during 2013-14. The insecticides viz., clothianidin 7.5 CS, fipronil 5 SC and bifenthrin 8 EC were evaluated against termites by different methods viz., modified ground board method (MGBM), petri dish method, glass tube test method and wood treatment. The impact of these insecticides on non-target soil biota was also assessed. In MGBM, clothianidin @ 0.1, 0.075 and bifenthrin @ 0.05% protected the wood bait up to 11 months. LT50 values for Odontotermes horni workers was lowest in bifenthrin @ 0.05% (3.69 h) followed by clothianidin @ 0.1% (4.99 h), clothianidin @ 0.075% (5.61 h), fipronil @ 0.075% (6.37 h), clothianidin @ 0.05% (7.23 h) and clothianidin @ 0.025% (7.66 h) at 1 MAT in petridish (Bioassay) method. Lower penetration and higher mortality of termites was noticed in soil treated with clothianidin @ 0.075%, 0.1% and bifenthrin @ 0.05% in glass tube test method. The wood stakes treated with the insecticide solutions were effective in repelling the termites up to 11 MAT. The toxicity of chlorpyriphos on total soil invertebrates was more and was on par with imidacloprid. Soil application of chlorpyriphos was found to be significantly more toxic to collembolans. Imidacloprid treated soil showed significantly higher toxicity to cryptostigmata. On the other hand, propargite found more toxic to other acari. Other invertebrates were more susceptible to the chlorpyriphos and was on par with fipronil, imidacloprid and buprofezin. Relative abundance of soil invertebrates also documented.