Severity and status of chilli powdery mildew in North Eastern Karnataka

SHEETAL .; D.S. ASWATHANARAYANA; M.R. GOVINDAPPA; K. MALLIKARJUN; A.G. SREENIVAS

doi:10.61475/jfm.v34i03.350

SHEETAL . Department of Plant Pathology,University of Agricultural Sciences, Raichur - 584 104, Karnataka, India
D.S. ASWATHANARAYANA Department of Plant Pathology,University of Agricultural Sciences, Raichur - 584 104, Karnataka, India
M.R. GOVINDAPPA Department of Plant Pathology,University of Agricultural Sciences, Raichur - 584 104, Karnataka, India
K. MALLIKARJUN Department of Plant Pathology,University of Agricultural Sciences, Raichur - 584 104, Karnataka, India
A.G. SREENIVAS Department of Agricultural Entomology, College of Agriculture, Raichur,University of Agricultural Sciences, Raichur - 584 104, Karnataka, India

DOI: https://doi.org/10.61475/jfm.v34i03.350

Keywords: Chilli, Disease, Powdery mildew, Weather parameter

Abstract

An intensive roving survey was carried out to know the present status of powdery mildew of chilli in chilli growing districts of North Eastern Karnataka viz., Yadgir, Koppal, Raichur, Ballari, Haveri and Gadag districts during rabi 2019-20. The results revealed that, the average disease severity was found more in Ballari district (64.56 PDI) followed by Raichur (47.67 PDI) and least in Gadag (30.37 PDI). The variation of disease severity at various locations is mainly attributed to the prevailing climatic factors like temperature, relative humidity, distribution of rainfall followed by varieties grown, cultural practices like sanitation and other suitable management practices. The other factors like age of the crop, cool nights and dry weather situation were also favourable for the severity of powdery mildew. Ballari and Raichur districts are considered as hotspots for powdery mildew of chilli.