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Dr. Rajendra Prasad Central Agricultural University, Pusa

In the imperial Gazetteer of India 1878, Pusa was recorded as a government estate of about 1350 acres in Darbhanba. It was acquired by East India Company for running a stud farm to supply better breed of horses mainly for the army. Frequent incidence of glanders disease (swelling of glands), mostly affecting the valuable imported bloodstock made the civil veterinary department to shift the entire stock out of Pusa. A British tobacco concern Beg Sutherland & co. got the estate on lease but it also left in 1897 abandoning the government estate of Pusa. Lord Mayo, The Viceroy and Governor General, had been repeatedly trying to get through his proposal for setting up a directorate general of Agriculture that would take care of the soil and its productivity, formulate newer techniques of cultivation, improve the quality of seeds and livestock and also arrange for imparting agricultural education. The government of India had invited a British expert. Dr. J. A. Voelcker who had submitted as report on the development of Indian agriculture. As a follow-up action, three experts in different fields were appointed for the first time during 1885 to 1895 namely, agricultural chemist (Dr. J. W. Leafer), cryptogamic botanist (Dr. R. A. Butler) and entomologist (Dr. H. Maxwell Lefroy) with headquarters at Dehradun (U.P.) in the forest Research Institute complex. Surprisingly, until now Pusa, which was destined to become the centre of agricultural revolution in the country, was lying as before an abandoned government estate. In 1898. Lord Curzon took over as the viceroy. A widely traveled person and an administrator, he salvaged out the earlier proposal and got London’s approval for the appointment of the inspector General of Agriculture to which the first incumbent Mr. J. Mollison (Dy. Director of Agriculture, Bombay) joined in 1901 with headquarters at Nagpur The then government of Bengal had mooted in 1902 a proposal to the centre for setting up a model cattle farm for improving the dilapidated condition of the livestock at Pusa estate where plenty of land, water and feed would be available, and with Mr. Mollison’s support this was accepted in principle. Around Pusa, there were many British planters and also an indigo research centre Dalsing Sarai (near Pusa). Mr. Mollison’s visits to this mini British kingdom and his strong recommendations. In favour of Pusa as the most ideal place for the Bengal government project obviously caught the attention for the viceroy.

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Subject: Entomology × Author: Gupta, Surya Prakash × End date: 2020 × Start date: 2013 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Bio-efficacy of Some Newer Insecticides against Brinjal Shoot and Fruit Borer, Leucinodes orbonalis (Guen) and their residues in/on brinjal fruits.
    (Rajendra Agricultural University, Pusa (Samastipur), 2013) Gupta, Surya Prakash; Singh, S. P.
    Bio-efficacy of six newer insecticides – emamectin benzoate (15 g a.i. ha-1), imidacloprid (20 g a.i. ha-1), indoxacarb (50 g a.i. ha-1) lambda – cyhalothrin (15 g a.i. ha-1) and spinosad (50 g a.i. ha-1) along with quinalphos (250 g a.i. ha-1) was evaluated against shoot and fruit borer (Leucinodes orbonalis Guen.) in brinjal (Solanum melongena Linn) at Rajendra Agricultural University, Pusa, Bihar during Rabi 2012-13. Spinosad treatment was significantly superior to others and at par with emamectin benzoate in reducing the shoot and fruit borer damage. Spinosad at 50 g a.i. ha-1 recorded the maximum fruit yield (280.42 q ha-1). It was followed by emamectin benzoate at15 g a.i. ha-1 (267.74 q ha-1) and indoxacarb at 50 g a.i. ha-1 (262.58 q ha-1). Lambda - cyhalothrin 15 g a.i. ha-1 treatment recorded maximum cost - benefit ratio of 1: 4.23 closely followed by imidacloprid 20 g and quinalphos 250 g a.i. ha-1 with ICBR of 1: 3.71 and 1: 3.43, respectively. Residues of imidacloprid at 20 g a.i. ha-1 and lambda – cyhalothrin at 15 g a.i. ha-1 were estimated quantitatively by HPLC/GLC in/on brinjal fruits. Initial deposits of insecticides were higher in imidacloprid than lambda – cyhalothrin. Initial deposits of 0.652 mg kg-1 of imidacloprid dissipated to 93.17 per cent on 10th day. In lambda – cyhalothrin the initial deposits were 0.138 mg kg-1 which dissipated to 92.75 per cent on 10th day. The degradation of imidacloprid was relatively higher as compared to lambda – cyhalothrin. Both imidacloprid and lambda – cyhalothrin had half – life values of 1.92 and 2.65 days, respectively on brinjal fruits. The safe waiting period for imidacloprid was found 4.70 days. In lambda - cyhalothrin, no waiting period is required after its application as the initial deposits were less than its MRL (0.3 mg kg-1). Simple washing of treated brinjal fruits with tap water removed insecticide residue in significant amount. The per cent removal of insecticide residues were to the extent of 25.23 – 36.20 per cent in imidacloprid and in lambda – cyhalothrin, the reduction in residue was 28.57 – 42.75 per cent.