STUDIES ON BIOECOLOGY AND LIFE FERTILITY TABLES OF TOBACCO CATERPILLAR, Spodoptera litura Fab. (Lepidoptera: Noctuidae) ON DIFFERENT HOST PLANTS

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dc.contributor.advisorSHARMA, K C
dc.contributor.authorBOPARAI, INDERPREET K
dc.date.accessioned2019-08-03T06:14:34Z
dc.date.available2019-08-03T06:14:34Z
dc.date.issued2019-07
dc.description.abstractABSTRACT The present investigation on “Studies on bioecology and life fertility tables of tobacco caterpillar, Spodoptera litura (Fab.) (Lepidoptera: Noctuidae) on different host plants” was carried out during 2016-2017 in the Department of Entomology, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan. Three different host plants (castor, capsicum and tomato) were selected to study the bioecology and life fertility tables of the tobacco caterpillar at different constant temperatures (20, 25, 30 and 35°C) under laboratory condition. The incubation period was maximum on capsicum and tomato (7 days each) at 20°C, whereas it was minimum (1 day) on castor at 35°C. The larval, pupal and total development periods were maximum (26.05, 18.71 and 51.76 days, respectively) on capsicum at 20°C and minimum (7.18, 3.84 and 12.02 days, respectively) on castor at 35°C. The male and female longevity was maximum (17.42 and 18.8 days, respectively) on castor at 20°C and minimum (5.2 and 6.2 days, respectively) on capsicum at 35°C. Fecundity was highest (1754 eggs per female) on castor at 25°C and lowest (450 eggs per female) on capsicum at 35°C. Temperature and host had a significant effect on the duration of different stages and fecundity of S.litura, whereas interaction of host and temperature had a significant effect only on larval and pupal period and longevity of male and female. Life fertility tables were also constructed on castor, capsicum and tomato at all four constant temperatures (20, 25, 30 and 35°C). The highest value of the true intrinsic rate of natural increase (rm) was observed on castor (0.4632 females per female per day) at 35°C and was lowest (0.1008 females per female per day) on capsicum at 20°C. Overall studies thus revealed that castor is the most favourable host ofS.litura.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810118887
dc.keywordsbioecology and life fertilitY, tobacco caterpilla, host plantsen_US
dc.language.isoenen_US
dc.pages101en_US
dc.publisherUHF,NAUNIen_US
dc.subEntomologyen_US
dc.subjectnullen_US
dc.themebioecology and life fertilitY, tobacco caterpilla, host plantsen_US
dc.these.typePh.Den_US
dc.titleSTUDIES ON BIOECOLOGY AND LIFE FERTILITY TABLES OF TOBACCO CATERPILLAR, Spodoptera litura Fab. (Lepidoptera: Noctuidae) ON DIFFERENT HOST PLANTSen_US
dc.typeThesisen_US
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