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Research Article Open access CC BY 4.0

Evaluation of Pre-mix Fungicide, Fluopyram and Trifloxystrobin 250SC against Purple Blotch Disease of Onion in Karnataka

M. R. Ravikumar, D. K. Harish, B. H. Kumara, Amarendra Kumar

Current Journal of Applied Science and Technology · pp. 44–50 · Published 5 May 2020

10.9734/cjast/2020/v39i830591

Abstract

Onion (Allium cepa L.) also known as the bulb onion or is rightly called as Queen of kitchen. It is one of the oldest important vegetable crops grown in India. Among the various fungal diseases, purple blotch caused by Alternaria porri is one of the most serious disease of onion which causes extensive damage to bulbs as well as seed crop. Field experiment was carried out to know the effect of combi-fungicide Luna sensation 500SC (Fluopyram250SC and Trifloxystrobin 250SC) at 400, 500 and 600 ml /ha along with recommended fungicides against purple blotch disease of onion during kharif seasons 2017-18 and 2018-19. A total of eight treatments were taken and among them Luna sensation 500SC (Fluopyram250SC and Trifloxystrobin 250SC) 600 ml / ha proved to be best for management of purple blotch 22.03% diseases index (PDI), which was superior over all other treatments with maximum bulb yield of 24.77 t/ha.

Onion purple blotch Alternaria porri disease fungicide

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