Madras Agricultural Journal
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Efficacy of botanicals against chilli powdery mildew caused by Leveillula taurica (Lev.) Arn.

Abstract

Chilli powdery mildew incited by Leveillula taurica (=Oidiopsis taurica) is one of the most serious diseases in Tamil Nadu. The leaf extracts of Azadirachta indica (10 per cent) and bulb extracts of Allium sativum and A.cepa (5 per cent) were highly effective in inhibiting conidial germination of L. taurica under in vitro conditions. The same extracts were also promising in reducing disease intensity under greenhouse and field conditions

Keywords: Chilli powdery mildew, Leveillula taurica, botanicals, management

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