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Acharya N G Ranga Agricultural University, Guntur

The Andhra Pradesh Agricultural University (APAU) was established on 12th June 1964 at Hyderabad. The University was formally inaugurated on 20th March 1965 by Late Shri. Lal Bahadur Shastri, the then Hon`ble Prime Minister of India. Another significant milestone was the inauguration of the building programme of the university by Late Smt. Indira Gandhi,the then Hon`ble Prime Minister of India on 23rd June 1966. The University was renamed as Acharya N. G. Ranga Agricultural University on 7th November 1996 in honour and memory of an outstanding parliamentarian Acharya Nayukulu Gogineni Ranga, who rendered remarkable selfless service for the cause of farmers and is regarded as an outstanding educationist, kisan leader and freedom fighter. HISTORICAL MILESTONE Acharya N. G. Ranga Agricultural University (ANGRAU) was established under the name of Andhra Pradesh Agricultural University (APAU) on the 12th of June 1964 through the APAU Act 1963. Later, it was renamed as Acharya N. G. Ranga Agricultural University on the 7th of November, 1996 in honour and memory of the noted Parliamentarian and Kisan Leader, Acharya N. G. Ranga. At the verge of completion of Golden Jubilee Year of the ANGRAU, it has given birth to a new State Agricultural University namely Prof. Jayashankar Telangana State Agricultural University with the bifurcation of the state of Andhra Pradesh as per the Andhra Pradesh Reorganization Act 2014. The ANGRAU at LAM, Guntur is serving the students and the farmers of 13 districts of new State of Andhra Pradesh with renewed interest and dedication. Genesis of ANGRAU in service of the farmers 1926: The Royal Commission emphasized the need for a strong research base for agricultural development in the country... 1949: The Radhakrishnan Commission (1949) on University Education led to the establishment of Rural Universities for the overall development of agriculture and rural life in the country... 1955: First Joint Indo-American Team studied the status and future needs of agricultural education in the country... 1960: Second Joint Indo-American Team (1960) headed by Dr. M. S. Randhawa, the then Vice-President of Indian Council of Agricultural Research recommended specifically the establishment of Farm Universities and spelt out the basic objectives of these Universities as Institutional Autonomy, inclusion of Agriculture, Veterinary / Animal Husbandry and Home Science, Integration of Teaching, Research and Extension... 1963: The Andhra Pradesh Agricultural University (APAU) Act enacted... June 12th 1964: Andhra Pradesh Agricultural University (APAU) was established at Hyderabad with Shri. O. Pulla Reddi, I.C.S. (Retired) was the first founder Vice-Chancellor of the University... June 1964: Re-affilitation of Colleges of Agriculture and Veterinary Science, Hyderabad (estt. in 1961, affiliated to Osmania University), Agricultural College, Bapatla (estt. in 1945, affiliated to Andhra University), Sri Venkateswara Agricultural College, Tirupati and Andhra Veterinary College, Tirupati (estt. in 1961, affiliated to Sri Venkateswara University)... 20th March 1965: Formal inauguration of APAU by Late Shri. Lal Bahadur Shastri, the then Hon`ble Prime Minister of India... 1964-66: The report of the Second National Education Commission headed by Dr. D.S. Kothari, Chairman of the University Grants Commission stressed the need for establishing at least one Agricultural University in each Indian State... 23, June 1966: Inauguration of the Administrative building of the university by Late Smt. Indira Gandhi, the then Hon`ble Prime Minister of India... July, 1966: Transfer of 41 Agricultural Research Stations, functioning under the Department of Agriculture... May, 1967: Transfer of Four Research Stations of the Animal Husbandry Department... 7th November 1996: Renaming of University as Acharya N. G. Ranga Agricultural University in honour and memory of an outstanding parliamentarian Acharya Nayukulu Gogineni Ranga... 15th July 2005: Establishment of Sri Venkateswara Veterinary University (SVVU) bifurcating ANGRAU by Act 18 of 2005... 26th June 2007: Establishment of Andhra Pradesh Horticultural University (APHU) bifurcating ANGRAU by the Act 30 of 2007... 2nd June 2014 As per the Andhra Pradesh Reorganization Act 2014, ANGRAU is now... serving the students and the farmers of 13 districts of new State of Andhra Pradesh with renewed interest and dedication...

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Subject: Entomology × Author: ABHIJITH, . N × Start date: 2017 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    INSECTICIDE RESISTANCE IN DIAMONDBACK MOTH Plutella xylostella (L.) AND ASSESSMENT OF INSECTICIDE RESIDUES IN CAULIFLOWER
    (ACHARYA N G RANGA AGRICULTURAL UNIVERSITY, 2021-11-29) ABHIJITH, . N; MURALI KRISHNA, Dr. T.
    The research work entitled “Insecticide resistance in diamondback moth, Plutella xylostella (L.) and assessment of insecticide residues in cauliflower” was conducted at Department of Entomology, Pesticide Residue Testing Laboratory, Institute of Frontier Technology (IFT), Regional Agricultural Research Station (RARS), Tirupati and field trials were conducted in the farmer’s field of Narasingapuram village near Chandragiri mandal during rabi, 2017-18 and 2018-19 and dissipation studies of insecticides conducted in S.V. Agricultural college farm, Tirupati during rabi, 2018-19. The results of the survey on incidence of DBM, P. xylostella along with insecticide usage pattern in five cauliflower growing mandals of Chittoor (Kuppam, Ramasamudram, V. Kota, Punganur and Gangavaram) and one mandal of Visakhapatnam (Chintapalle) districts of Andhra Pradesh revealed that, the highest percent incidence of P. xylostella observed in Kuppam (84.00%) and Punganur (83.66%) mandals of Chittoor district and lowest in two villages of Chintapalle mandal (15.50% and 16.50%) of Visakhapatnam district in both the seasons i.e., in rabi, 201718 and 2018-19, respectively. The per cent incidence of P. xylostella and its larval parasitoid was cent per cent in sample farmer fields and the lowest per cent incidence of leaf webber (Crocidolomia binotalis) was noticed with 13.33 and 10.00 per cent incidence in rabi, 2017-18 and 2018-19, respectively. The highest number of insecticide used was recorded in Kuppam (16) followed by Ramasamudram (14), V. Kota (12), Punganur (9) and Gangavaram (8) mandals of Chittoor district and no insecticide usage was recorded in Chintapalle mandal of Visakhapatnam district. Majority of the farmers (51.66%) preferred to spray insecticide once in a week and followed recommendation of dealers or salesman (81.66%), most of the farmers used to mix different formulations of Insecticide + Insecticide + Adjuvant (73.33%) and not followed (71.66%) any recommended precautionary measures while application of insecticides and 84.99 per cent of the farmers disposing the containers of insecticides used in unscientific ways. The experiments on bioassay to detect the resistance level in P. xylostella, revealed that the P. xylostella population from all five mandals of Chittoor district xvi showed high resistance to chlorpyrifos followed by cartap hydrochloride, spinosad, emamectin benzoate and the lowest resistance to chlorantraniliprole. The population of Kuppam mandal showed high resistance ratio of viz., 36.00 and 44.50 to chlorpyrifos, 2.04 and 2.55 to chlorantraniliprole, 12.14 and 33.75 to cartap hydrochloride, 10.50 and 24.00 to spinosad and 5.28 and 10.00 to emamectin benzoate during rabi, 2017-18 and 2018-19, respectively and the lowest resistance ratio was observed in Chintapalle mandal of Visakhapatnam district when compared with baseline susceptible population. The enzymatic activity of carboxylesterase, GST and AChE enzymes were found to be the highest in P. xylostella population of Kuppam mandal followed by Ramasamudram, V. Kota, Punganur and Gangavaram mandals and within the population the enzymatic activity was the highest when treated with chlorpyrifos followed by cartap hydrochloride, spinosad, emamectin benzoate, chlorantraniliprole in all P. xylostella population of Chittoor district. The activity was lowest in Chintapalle mandal of Visakhapatnam district and baseline susceptible population and there was no significant difference between treatments during rabi, 2017-18 and 2018-19. In detection of insecticide residues in cauliflower curd samples from farmgate samples of Chittoor district, all samples of cauliflower curds were detected with residues below MRL of Codex Alimentarius Commission (CAC) except three insecticides viz., chlorpyrifos (seven and nine samples in rabi, 2017-18 and 2018-19, respectively), emamectin benzoate (one sample in rabi, 2017-18) and tolfenpyrad (four samples in rabi, 2018-19). The persistence of nine insecticides in cauliflower curds under field conditions, revealed that the all nine insecticides dissipated followed first order of kinetics and high persistence was noticed in cyantraniliprole and novaluron with detection of residues upto 15 days and reached BDL at 20 days after application of insecticide, next high persistence was noticed in tolfenpyrad, spinosad and spinetoram (reached BDL at 15th day) followed by bifenthrin, chlorantraniliprole and acephate (reached BDL at 10th day) and low persistence was observed in emamectin benzoate which reached BDL at 5th day after application of insecticide. In the field experiments conducted during rabi, 2017-18 and 2018-19 to evaluate the efficacy of nine insecticides against larvae of P. xylostella and leaf damage by P. xylostella, the tolfenpyrad, spinetoram and cyantraniliprole found to be the most effective insecticides against larvae of P. xylostella with efficacy of 91.61, 91.41 and 91.32 per cent, respectively without any significant difference and the mean per cent reduction of cauliflower leaf damage was maximum in the tolfenpyrad (70.70%), cyantraniliprole (70.37%) and spinetoram (69.72%) without any significant difference. The yield data of cauliflower curds revealed that the highest yield was recorded in the plots treated with spinetoram (21.45 tons ha-1), cyantraniliprole (21.32 tons ha-1) and tolfenpyrad (21.19 tons ha-1) without any significant difference between them and the lowest yield was recorded in plots treated with bifenthrin (11.30 tons ha-1), acephate (9.50 tons ha-1) and untreated control (8.19 tons ha