000			03454nam a2200253Ia 4500
003			OSt
005			20240301125604.0
008			130502s9999 xx 000 0 und d
040			_cCPGS
082			_a635.64897
100			_aKharpran, Kitdorlang _9705
245			_aInsect pest complex of Okra and their management at medium altitude hills in Meghalaya / _cby Kitdorlang Kharpran.
260			_aUmiam : _bCPGS, CAU _cc2010
300			_a[26], 118p.: _bill., some col.;
440			_a[Entomology, School of Crop Protection] _9757
501			_aAbstract: Insect pest complex of okra was studied by recording number of insect pests on ten randomly selected plants from each plot during 2008 - '09. The population was counted on a single leaflflower/fruit basis. The insect pests recorded were aphid (Aphis gossypii Glover), jassid (Amrasca biguttula biguttula Ishida), leaf beetle (Monolepta signata Oliv.), leaf roller (Sylepta derogata Fab.), blister beetle (Mylabris pustulata Thnb.) and red cotton bug (Dysdercus koenigii Fab.). During the year 2009 Myllocerus lineatocollis was also recorded along with other pests. The natural enemies recorded were spiders and ladybird beetles. The pests recorded at the seedling , stage were aphid, jassid and leaf beetle, whereas the pests at the vegetative stage were aphid, jassid, leaf beetle and leaf roller. At the flowering stage the pests found were aphid, jassid , leaf beetle and blister beetle, and at the fruiting stage red cotton bug appeared along with aphid, jassid, leaf beetle and blister beetle. The incidence of Myllocerus lineatocollis was recorded during vegetative stage and continued till harvest. Out of these, aphid, jassid, blister beetle and red cotton bug were the major pests whereas leaf beetle, leaf roller and Myllocerus were he minor pests. Amongst the abiotic factors, temperature and relative humidity were found to favour the incidence of jassids, whereas temperature alone favoured the incidence of Myllocerus weevils. Incidence of other pests was independent of the weather factors. The management trials with different pesticides, botanicals and microbials revealed that amongst the synthetic insecticides, imidacloprid (0.004 %) was the most effective in reducing the population of all the pests, followed by thiamethoxam, endosulfan and lambdacyhalothrin in their order of efficacy, whereas amongst the botanicals, karanjin (2 %) was found to be the most effective against aphid, neem oil (5 %) againstjassid and NSKE (5 %) against blister beetle and red cotton bug. Amongst the microbials, Verticillium lecanii (0.16 g/I) was found to be the most effective against aphid, whereas Beauveria bassiana (I mill) was most effective against jassid, blister beetle and red cotton bug. Lambdacyhalothrin and endosulfan were toxic to the natural enemies, whereas, imjdacJoprid and tbiamethoxam were less toxic to the natural enemjes. Both the botanicals and microbials were safe to the natural enemies. Among all the management techniques, midacloprid @ 0.004% was found most effective in controlling the insect pests of okra.
504			_aIncludes bibliographical references.
650			_aEntomology _9706
650			_aOkra _xInsect Pest _zMeghalaya _9707
650			_aOkra _xPest control _9708
700			_aD. Kumar _eMajor Advisor _9709
856			_uhttps://drive.google.com/file/d/1uCUCasgoglH1v9rnh-G9UKwqWhLOCi15/view?usp=sharing
942			_2ddc _cTH
999			_c3982 _d3982