000 02942nam a2200253Ia 4500
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040 _cCPGS
082 _a632.76
100 _aDebbarma, Jash Paul
_9672
245 _aStudies on the biology of Callosobruchus chinensis(Linn.) on different pulses and its management at medium altitude hills of Meghalaya /
_cby Jash Paul Debbarma.
260 _aUmiam :
_bCPGS, CAU,
_cc2010
300 _a[10], 99p.:
_bill., some col.;
440 _a[Entomology, School of Crop Protection]
_9747
501 _aAbstract: An investigation was carried out on the biology of Callosobruchus chlnensis (Linnaeus) on different pulses and its management in the laboratory of the Division of Entomology. ICAR Research Complex for North Eastern Hill (NEH) Region. Umlam. Meghalaya. The growth and development of C.chinensis was studied on nine different pulses and it was observed that there was highly significant difference between egg laying and adult emergence. longevity of the offspring and developmental period indicating difference in the suitability of differen pulses on the growth and population build lip of pulse beetle The most suitable hosts were found to be pigeon pea cowpea green gram and Kabuli chana where the adult emergence was higher compared to other pulses. French bean was found to be totally unsuitable for the growth as there was no adult emergellce observed. The management of with different plant leaf powders revealed that among neem. lantana. mella. eupatorium and ageratum leaf powders. neem powder was found to be most effective in reducing egg laying, adult emergence and percent weight loss treated at the rate of 50g/kg green gram seeds. Lantana and eupatorium leaf powders were least effective. Among the oils. neem. mustard. sunflower and safflower oils at the rate of 5. ml/kg seed was found to be most effective in the management of C.chtnensis on green gram where no adult emergence was observed. Whereas adult emergence was observed in coconut. soybean and groundnut oil treated seeds at same rate of application Neem oil was found effective even at the lower dosage of 25ml/kg.Therefore. for the management of C chinensis, oils were more effective than the botanical powders. Any of the above mentioned oils could be used at the rate of 5m/1kg except neem oil which could be used even at 2.5 ml/kg But oils are costlier than the powders and they are easily available. Therefore, powders of neem melia and ageratum leaves also could be used for the management of this beetle.
504 _aIncludes bibliographical references.
650 _aC.chinensis-biology
_9674
650 _aEntomology
_9675
650 _aPulse beetle
_9676
700 _aThakur, N.S.Azad
_eMajor Advisor.
_9677
856 _uhttps://drive.google.com/file/d/1mz5HLSFlVcSri8NQIYcLpQSjtm4eUbrO/view?usp=sharing
942 _2ddc
_cTH
999 _c3981
_d3981