Vol. 7, Issue 2 (2019)
Integrated disease management of Alternaria leaf blight in bottle gourd under Semi arid conditions in Rajasthan
Author(s): RK Bagri, VS Yadav, J Singh, SK Goyal, Nitin Chawla, RS Sharma and JS Maheria
Abstract: Bottle gourd [Lagenaria siceraria (Mol.) Standl] is a commonly grown vegetable crop in India, which is also grown in Ethiopia, Africa, Central America and other warmer regions of the world. It is widely grown on open fields as well as in river beds throughout the year. It is also suitable for cultivation in hot dry areas. The fruits can be used for juice, as a vegetable or for making sweets. As a vegetable, it is easily digestible, even by patients. Alternaria leaf blight found to cause serious losses in bottle guard crop throughout Rajasthan and other states. Characteristic symptoms first appear as small; circular and light to reddish brown spots, which latter enlarge in a concentric manner. Lesions often coalesce to form larger necrotic areas and in the centre of the spot, olivaceous sporulation occurs. The field trial was conducted during Kharif season of 2015 and 2016 at RARI, Durgapura for the integrated disease management of Alternaria leaf blight in bottle gourd through different means and combinations among seven treatments. The minimum disease incidence (10.9%) and maximum yield (337.9 q/ha) were observed in treatment T5 (T0+ Seed treatment with carbendazim 12%+ mancozeb 63% @ 3 g/kg and drenching of Captan 70% +Hexaconazole 5% WP @ 0.1% 15 days after germination followed by spraying of Tebuconazole 50% + Trifloxystrobin 25% @1g/l + spray with (Imidacloprid 17.8 SL @ 7.5 ml/ 15 l + Neem oil 0.2%) followed by Fosetyl-Al @ 0.1% followed by spraying of Tebuconazole 50% + Trifloxystrobin 25% @1g/l + spray with (Imidacloprid 17.8 SL @ 7.5 ml/ 15 l + Neem oil 0.2%) followed by Fosetyl-Al @ 0.1% at 10 days interval) while maximum disease incidence (34.57%)and minimum yield (235.9 q/ha)were observed in treatment T7(Control).
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How to cite this article:
RK Bagri, VS Yadav, J Singh, SK Goyal, Nitin Chawla, RS Sharma, JS Maheria. Integrated disease management of Alternaria leaf blight in bottle gourd under Semi arid conditions in Rajasthan. Int J Chem Stud 2019;7(2):915-917.
