STUDIES ON INSECT-PESTS OF WILD MELON, Cucumis melo subsp. agrestis (Naudin) Pangalo

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dc.contributor.advisorKOTIKAL, Y. K.
dc.contributor.authorS. G., SUNIL
dc.contributor.otherVENKATESHALU
dc.contributor.otherGANIGER, V. M.
dc.contributor.otherG, BHUVANESHWARI
dc.date.accessioned2020-09-29T06:49:01Z
dc.date.available2020-09-29T06:49:01Z
dc.date.issued2018-07
dc.description.abstractThe present investigation entitled, “Studies on insect-pests of wild melon, Cucumis melo L. subsp. agrestis (Naudin) Pangalo” was carried out during the kharif 2016 at Main Horticultural and Research and Extension centre of University of Horticultural Sciences, Bagalkot (Karnataka). The wild melon was found to be attacked by 24 species of insect pests and 11 species of natural enemies. Among the insect pests, nine species were defoliators, thirteen sucking pests and two tissue feeders. The effect of weather parameters on pest population was studied. The population of leaf miner, pumpkin beetle and thrips did not show any significant association with any of the weather parameters but in the case of fruit fly, the relative humidity was found to be negatively correlated. The studies on screening of twenty-four wild melon genotypes against major pests, indicated that leaf miner infestation was least on genotypes, HUB-2, HUB-3, HUB-14 and HUB-13. Whereas, genotypes HUB- 2, HUB-3 and HUB-14 recorded significantly lowest pumpkin beetle while, the lowest per cent fruit fly infestation was found in genotypes, HUB-22, HUB-15, HUB-2 and HUB-16. Correlation studies on biophysical and biochemical traits of fruit with fruit fly infestation showed that fruit toughness, number of trichomes, total phenols and tannins had negative influence on fruit fly damage. Studies were also conducted to know the bio-efficacy of different insecticides against major insect pests. Among all the treatments, T2 (Imidacloprid 17.8% SL @ 0.25 ml/l-Emamectin benzoate 5% SG @ 0.2 g/l) was found to be the most effective for reducing thrips and pumpkin beetles. While the lowest fruit fly infestation of 7.53 per cent was recorded in treatment T5 (Diafenthiuron 50% WP @ 1.25 g/l- Azadirachtin 10000 ppm, @ 1 ml/l-cue-lure trap @ 20/ha) which recorded highest yield (14.17 t/ha) and highest benefit cost ratio (3.65) being significantly superior over other treatments.en_US
dc.identifier.issnUHS15PGM597
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810152041
dc.keywordsWILD MELON, T461en_US
dc.language.isoEnglishen_US
dc.pages137en_US
dc.publisherUniversity of Horticultural Sciences, Bagalkoten_US
dc.research.problemThesisen_US
dc.subEntomologyen_US
dc.themeSTUDIES ON INSECT-PESTS OF WILD MELON, Cucumis melo subsp. agrestis (Naudin) Pangaloen_US
dc.these.typeM.Scen_US
dc.titleSTUDIES ON INSECT-PESTS OF WILD MELON, Cucumis melo subsp. agrestis (Naudin) Pangaloen_US
dc.typeThesisen_US
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