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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(2): 1632-1639
DOI: https://doi.org/10.20546/ijcmas.2019.802.192


In vitro Evaluation of Fungicides Plant Extracts and Bio-agents against Alternaria helianthi causing Leaf Blight of Sunflower
G. Mahadevaswamy1*, G. Vijayalakshmi2 and G. Gangadharanaik1
1Department of Plant Pathology, University of Agricultural and Horticultural Sciences, Shimoga, Karnataka, India – 577 225
2Department of Plant Pathology, University of Agricultural Sciences,
Bengaluru -560065, India
*Corresponding author
Abstract:

Alternaria leaf blight of sunflower caused by Alternaria helianthi is an important disease of sunflower. The study conducted on in vitro evaluation of new molecules of fungicides and plant extracts against Alternaria helianthi, causal agent of Alternaria blight of sunflower. In vitro evaluation of fungicides revealed that, among four systemic fungicides hexaconazole and propiconazole were highly effective in inhibiting the mycelial growth with 100% inhibition among non systemic fungicides the maximum inhibition of mycelial growth was found in captan (86.30%) at 600 ppm concentration followed by copper oxy chloride (84.07%) whereas, among the botanicals neem seed kernel extracts at 10 per cent(43.74%) showed positive effect on inhibition of pathogen mycelium growth followed by neem leaf extracts(25.26%). Trichoderma harzianum shows the best bio agents against Alternaria helianthi with highest per cent inhibition (72.48%).


Keywords: In-vitro evaluation, Fungicides, Plant extracts, Bio agents, Alternaria helianthi
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How to cite this article:

Mahadevaswamy, G., G. Vijayalakshmi and Gangadharanaik, G. 2019. In vitro Evaluation of Fungicides Plant Extracts and Bio-agents against Alternaria helianthi causing Leaf Blight of Sunflower.Int.J.Curr.Microbiol.App.Sci. 8(2): 1632-1639. doi: https://doi.org/10.20546/ijcmas.2019.802.192