Efficacy of various antagonistic microflora against chilli powdery mildew caused by Leveillula taurica (Lev.) Arn.
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Author:A. SUDHA AND P. LAKSHMANAN
p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:94, Issue:jan-jun
DOI: https://doi.org/10.29321/MAJ.10.100632
Abstract
Chilli powdery mildew incited by Leveillula taurica is one of the most serious
diseases in Tamil Nadu. Among the antagonistic microflora, maximum reduction in
conidial germination was recorded by the culture filtrates of Trichoderma viride,
T.harzianum and Pseudomonas fluorescens under in vitro condition. These antagonistic
microflora were highly effective in reducing disease severity in the greenhouse and
field. In greenhouse, T.harzianum recorded maximum disease reduction of 66.0 per cent,
followed by T.viride (48.9 per cent) and P.fluorescens (39.9 per cent). Same trend was
observed in field also, where 54.9, 47.8 and 36.1 per cent disease reduction were recorded
respectively
Key words : Chilli, powdery mildew, Leveillula taurica, antagonistic microflora, biocontrol, management