Vol. 8, Issue 1 (2020)
Climate change and its impact on insect-pest incidence of dry land crops in the scarcity zone of Maharashtra state
Author(s): VB Akashe, KC Ombase, BN Najan, SV Khadtare and HN Aiwale
Abstract: The recent impact of climate change influencing insect-pest incidence in important dry land crops revealed that incidence of insect-pests during last decade viz., sorghum shoot fly (5-13% dead hearts), stem borer (2-10% dead hearts), delphacids (4-5 to 12-15 Nos./ shoot/plant) increased, respectively. Sunflower bud necrosis was increased from 4-5% to 9-10% whereas on safflower the occurrence of three new emerging pests viz., leaf eating caterpillar, stem borer and stem fly was also noticed to the extent of 15-18% infestation. Castor semi-looper and capsule borer were increased respectively @ 3-6 larvae/leaf/plant to 9-10 larvae/leaf/plant and 8-10% capsule damage to 12-15% capsule damage. The congenial climate condition required for the survival and development of sorghum shoot fly is min. 22 0C and max. 37 0C temp., RH-I 44% and RH-II 93%, stem borer min. 19 0C and max. 36 0C temp., RH-I 38% and RH-II 94%, delphacids min. 18 0C and max. 30 0C temp., RH-I 35% and RH-II 75%, safflower aphid min. 10 0C and max. 28 0C temp., RH-I 40% and RH-II 60%, safflower caterpillar min. 19 0C and max. 33 0C temp., RH-I 50% and RH-II 80%, chickpea pod borer min. 20 0C and max. 35 0C temp. with cloudy and hot weather, sunflower bihar hairy caterpillar min. 22 0C and max. 34 0C temp, pigeon pea pod borer min. 30 0C and max. 33 0C temp. and castor semi-looper min. 22 0C and max. 35 0C temp., RH-I 50% and RH-II 73%.
DOI: 10.22271/chemi.2020.v8.i1ad.8561
Pages: 2012-2015 | 452 Views 83 Downloads
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How to cite this article:
VB Akashe, KC Ombase, BN Najan, SV Khadtare, HN Aiwale. Climate change and its impact on insect-pest incidence of dry land crops in the scarcity zone of Maharashtra state. Int J Chem Stud 2020;8(1):2012-2015. DOI: 10.22271/chemi.2020.v8.i1ad.8561
