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Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur

Himachal Pradesh Krishi Vishvavidyalaya (renamed as Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya in June, 2001) was established on 1st November, 1978.The College of Agriculture (established in May, 1966) formed the nucleus of the new farm University. It is ICAR accredited and ISO 9001:2015 certified institution. The Indian Council of Agricultural Research has ranked this University at eleventh place among all farm universities of the country. The University has been given the mandate for making provision for imparting education in agriculture and other allied branches of learning, furthering the advancement of learning and prosecution of research and undertaking extension of such sciences, especially to the rural people of Himachal Pradesh. Over the years, this University has contributed significantly in transforming the farm scenario of Himachal Pradesh. It has developed human resources, varieties and technologies and transferred these to farming community enabling the State to receive the “Krishikarman award” of Govt. of India four times in row for food grain production among small states of the country. Today, the State has earned its name for hill agricultural diversification and the farming community has imposed its faith in the University.

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20192
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Subject: Entomology × Author: Chowdary, Namburi Mounica × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    BIOEFFICACY OF NEWER INSECTICIDES AGAINST LEPIDOPTERAN PESTS AND THEIR RESIDUE DYNAMICS ON CABBAGE
    (CSK HPKV, Palampur, 2019-06-18) Chowdary, Namburi Mounica; Sharma, Prem Chand
    Field experiment was conducted at Experimental Research Farm of Department of Entomology, CSKHPKV, Palampur during the rabi season 2018-19 to determine the bioefficacy of insecticides against Plutella xylostella and their residue dynamics on cabbage, variety Pusa Cabbage-1. The bioefficacy of insecticides comprising chlorantraniliprole, cypermethrin, diafenthiuron, emamectin benzoate, indoxacarb, novaluron, azadirachtin, spinosad and Bacillus thuringiensis was determined. After two sprays, chlorantraniliprole @ 10g a.i./ha recorded minimum larval population with 1.21 larvae/plant followed by spinosad @ 15 g a.i./ha (1.43) and indoxacarb @ 40 g a.i./ha (1.6). The treatments with high larval population were azadirachtin (5.56 larvae/plant) followed by Bt (5.47). The per cent reduction of larval population over untreated check was highest in chlorantraniliprole (81.02%), followed by spinosad (78.13%) and indoxacarb (78.02%). The lowest per cent reduction was found in the plots treated with Bt (45.14%) and azadirachtin (45.52%). Incremental cost benefit ratio was maximum (1:18.44) in chlorantraniliprole followed by spinosad (1:16.33) and diafenthiuron (1:13.96). The lowest incremental cost benefit ratio was found with novaluron (1:2.48). The initial deposits of diafenthiuron, indoxacarb and novaluron on cabbage heads were found to be 0.604, 0.309 and 0.218 mg/kg, respectively which were below the quantification limits on 7th day after spray. The half-life values were calculated to be 1.05, 1.73 and 1.14 days, the safety intervals were found to be 0.77, 0.13 and 1.91 days, for diafenthiuron, indoxacarb and novaluron, respectively.
  • Thumbnail Image
    ThesisItemOpen Access
    BIOEFFICACY OF NEWER INSECTICIDES AGAINST LEPIDOPTERAN PESTS AND THEIR RESIDUE DYNAMICS ON CABBAGE
    (CSKHPKV, Palampur, 2019-06-18) Chowdary, Namburi Mounica; Sharma, Prem Chand
    Field experiment was conducted at Experimental Research Farm of Department of Entomology, CSKHPKV, Palampur during the rabi season 2018-19 to determine the bioefficacy of insecticides against Plutella xylostella and their residue dynamics on cabbage, variety Pusa Cabbage-1. The bioefficacy of insecticides comprising chlorantraniliprole, cypermethrin, diafenthiuron, emamectin benzoate, indoxacarb, novaluron, azadirachtin, spinosad and Bacillus thuringiensis was determined. After two sprays, chlorantraniliprole @ 10g a.i./ha recorded minimum larval population with 1.21 larvae/plant followed by spinosad @ 15 g a.i./ha (1.43) and indoxacarb @ 40 g a.i./ha (1.6). The treatments with high larval population were azadirachtin (5.56 larvae/plant) followed by Bt (5.47). The per cent reduction of larval population over untreated check was highest in chlorantraniliprole (81.02%), followed by spinosad (78.13%) and indoxacarb (78.02%). The lowest per cent reduction was found in the plots treated with Bt (45.14%) and azadirachtin (45.52%). Incremental cost benefit ratio was maximum (1:18.44) in chlorantraniliprole followed by spinosad (1:16.33) and diafenthiuron (1:13.96). The lowest incremental cost benefit ratio was found with novaluron (1:2.48). The initial deposits of diafenthiuron, indoxacarb and novaluron on cabbage heads were found to be 0.604, 0.309 and 0.218 mg/kg, respectively which were below the quantification limits on 7th day after spray. The half-life values were calculated to be 1.05, 1.73 and 1.14 days, the safety intervals were found to be 0.77, 0.13 and 1.91 days, for diafenthiuron, indoxacarb and novaluron, respectively.