LINKING DEMOGRAPHY AND FOOD CONSUMPTION TO PROJECT POPULATION GROWTH AND DAMAGE POTENTIAL OF Spodoptera frugiperda (J. E. Smith)

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dc.contributor.advisorSHARMA, P L
dc.contributor.authorSHARMA, SHUBHAM
dc.date.accessioned2023-01-03T07:36:23Z
dc.date.available2023-01-03T07:36:23Z
dc.date.issued2022-11
dc.description.abstractAbstract The present study entitled “Linking demography and food consumption to project population growth and damage potential of Spodoptera frugiperda (J. E. Smith)” was carried out in the Biocontrol Research Laboratory of the Department of Entomology, Dr YS Parmar University and Forestry, Nauni, Solan (HP), during 2021-22. Spodoptera frugiperda, identified as an invasive pest worldwide, has severely threatened the agricultural production and food security in India. To formulate ecofriendly IPM strategies for S. frugiperda in its new invasive habitat, the basic knowledge about demographic parameters and damage potential of this pest is crucial. The effect of six host crops maize, popcorn, sweet corn, sorghum, soybean and pea on the development and food consumption of S. frugiperda were examined. S. frugiperda successfully completed its developments on all the tested host plants. The pre-adult development of S. frugiperda was fastest on popcorn (26.02 days), maize (28.04 days) and sweetcorn (28.31 days) but slowest on pea (36.43 days). The fecundity was highest in females reared on popcorn (1405.67 eggs/female) followed by sweetcorn (1381.11 eggs/female) and maize (1348.20 eggs/female). The highest net reproductive rate, intrinsic rate of increase and finite rate of increase were observed on maize. The feeding potential of S. frugiperda was also higher on maize. The maximum consumption of sixth larval instar was observed on maize (19470.47 mm2) and lowest on pea (8985.78 mm2). Population projection curves based on life table and consumption rates were drawn on different hosts. In the simulation period of 90 days, fastest growth of S. frugiperda was expected on maize, popcorn and sweetcorn while slowest on pea. Higher larval and pupal survival recorded on non-maize hosts (soybean and pea) reflects that FAW could be an obstacle in their production as well as in the success of maize-soybean and maize-pea intercropping system. Moreover, co-occurrence of different crops in the agro-ecosystem (sorghum and soybean) can stimulate new feeding preferences in the non-existence of main hosten_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810191046
dc.keywordsfood consumption,Spodoptera frugiperda,Biocontrol,damage potential ,Linking demographyen_US
dc.language.isoEnglishen_US
dc.pages102en_US
dc.publisherUHF,NAUNIen_US
dc.subEntomologyen_US
dc.themefood consumption,Spodoptera frugiperda,Biocontrol,damage potential ,Linking demographyen_US
dc.these.typeM.Scen_US
dc.titleLINKING DEMOGRAPHY AND FOOD CONSUMPTION TO PROJECT POPULATION GROWTH AND DAMAGE POTENTIAL OF Spodoptera frugiperda (J. E. Smith)en_US
dc.typeThesisen_US
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