National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Sunflower (Helianthus annuus L.) is an important oil seed crop belonging to Asteraceae family and ranks third after groundnut and soybean. Powdery mildew of sunflower is caused by Golovinomyces cichoracearum (DC.) V. P. Heluta is one of the most important diseases causing economic yield loss in recent years. To identify hot spots for powdery mildew of sunflower a roving survey was carried out during rabi 2015 in two taluks each from Ballari, Koppal and Raichur districts of North Eastern Karnataka. Among the three districts surveyed, powdery mildew disease was severely observed in Koppal district with maximum mean per cent disease index (PDI) of 62.35 followed by Raichur with mean PDI of 50.65 and minimum mean PDI of 38.32 recorded in Ballari district. Among all the villages surveyed, maximum mean PDI (69.77) recorded in Bisarahalli village of Koppal taluk, whereas least mean PDI (31.54) recorded in Hampasagara-2 village of Hagaribommanahalli taluk.
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