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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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Subject: Entomology × Author: Ahad, Abdul × Start date: 2006 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    POPULATION BUILD UP AND MANAGEMENT OF PADDY BLACK BEETLE, HETERONYCHUS LIODERES REDT.
    (CSKHPKV, Palampur, 2019-07-22) Ahad, Abdul; Srivastava, Ajai
    The present study entitled “Population build up and management of paddy black beetle, Heteronychus lioderes Redt.” was conducted at Rice and Wheat Research Centre of CSK HPKV Malan during kharif, 2018. Population build up studies on paddy black beetle were carried out by employing different methods viz., pit method, per cent tiller infestation, light trap catches. The incidence of black beetle started appearing during3rd week of July at farmer’s field (Tikkri). Black beetle reached the peak population during first week of August with 48.4 per cent tiller infestation. The peak population of beetle was during 1st week of August with 3.8 adults in five pits. Black beetle started appearing in 3rd week of July as recorded through light trap and the pest remained active up to 3rd week of October. The relationship of population build up parameters of black beetle with abiotic factors of environment revealed significant positive correlation of light trap population with minimum temperature relative humidity and rainfall while a non significant positive correlation was observed with maximum temperature. In pit method minimum temperature and relative humidity (morning) were significantly positive correlated but maximum temperature and rainfall had non significant positive correlation. For screening of rice genotype against black beetle, sixty entries were raised at farmer’s field, Tikkri and assessed in terms of per cent tiller infestation caused by paddy black beetle and converted to 0-9 scale. The results revealed that the no germplasm recorded damage score of 0 to 1. The entries namely T-23, Vallabh Basmati-24 recorded damage score of 3 and were designated as moderately resistant.The application of various insecticides and botanicals proved promising in checking black beetle infestation as compared to untreated control. In black beetle chlorpyriphos 20 EC (2.0 L ha-1) was the most effective treatment followed by carboufuran 3G (33 kg ha-1) and clothianidin 50 WDG (12 g ha-1) which were statistically similar. Among botanicals, Eupatorium 5% (2.5 L ha-1) recorded maximum tiller infestation and was found at par with eucalyptus oil (1 L ha-1). The grain yield in protected plots was maximum in chlorpyriphos 20 EC (35.33 q ha-1) and minimum in Eupatorium 5% (25.75 qha-1). Benefit: cost ratio (12.23:1) was maxiumum in chlorpyriphos treated plots.