SURVEY AND BIOECOLOGY OF TOMATO LEAFMINER, Tuta absoluta MEYRICK (LEPIDOPTERA: GELECHIIDAE) IN NORTH EASTERN KARNATAKA

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dc.contributor.advisorARUNKUMAR HOSAMANI
dc.contributor.authorMANOJ KURANE
dc.date.accessioned2020-05-27T09:50:03Z
dc.date.available2020-05-27T09:50:03Z
dc.date.issued2016-06-30
dc.description.abstractStudies on survey and surveillance, monitoring and biology of tomato leafminer, Tuta absoluta (Meyrick) were carried out at Main Agricultural Research Station (MARS), University of Agricultural Sciences, Raichur, during 2015-16. Roving survey conducted in six districts of North Eastern Karnataka viz., Bidar, Kalaburagi, Yadgir, Raichur, Ballari and Koppal indicated that maximum numbers of larvae were noticed in Kalaburagi district. The associated predator of tomato leafminer population was high in Raichur, while it was low in Koppal district. Maximum parasitoids (Habrobracon sp. and N. formosa,) were noticed in Raichur district. Per cent leaf and fruit damage was high in Kalaburagi district during vegetative and fruiting stage. In MARS, Raichur both maximum and minimum temperatures had positive and significant correlation (r = 0.67 and 0.72) on the population of tomato leafminer, whereas negative and significant relationship was established between population and morning and evening relative humidity (r = -0.80 and -0.61). Correlation studies on light trap catches of moths with maximum and minimum temperatures showed negative and significant correlation (r = -0.50 and -0.60). On contrary, both maximum and minimum temperature had no influence on pheromone trap catches of moths (r = 0.06 and -0.43). However, evening relative humidity had positive and significant correlation (r = 0.52). Studies on biology of tomato leafminer conducted at laboratory revealed that the incubation period of T. absoluta eggs lasted for 4.08 ± 0.55 days. The total larval period required 10.59 ± 2.06 days to complete its development. The pupal period occupied 7.62 ± 1.07 days. Adult females laid 165.05 ± 6.22 eggs per female. The longevity of male moths varied with 7.50 ± 1.20 days, while that of female 15.01 ± 1.47 days. The percentage hatchability of 90.67 per cent was recorded. Fecundity was observed from first to thirteenth day, wherein the highest fecundity was recorded on second day with 40.70en_US
dc.identifier.citation200en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810146561
dc.language.isoenen_US
dc.pages125en_US
dc.publisherUNIVERSITY OF AGRICULTURAL SCIENCES, RAICHURen_US
dc.research.problemSURVEY AND BIOECOLOGY OF TOMATO LEAFMINER, Tuta absoluta MEYRICK (LEPIDOPTERA: GELECHIIDAE) IN NORTH EASTERN KARNATAKAen_US
dc.subAgricultural Entomologyen_US
dc.themeSURVEY AND BIOECOLOGY OF TOMATO LEAFMINER, Tuta absoluta MEYRICK (LEPIDOPTERA: GELECHIIDAE) IN NORTH EASTERN KARNATAKAen_US
dc.these.typeM.Scen_US
dc.titleSURVEY AND BIOECOLOGY OF TOMATO LEAFMINER, Tuta absoluta MEYRICK (LEPIDOPTERA: GELECHIIDAE) IN NORTH EASTERN KARNATAKAen_US
dc.typeThesisen_US
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