International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 6, Issue:10, October, 2017

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(10): 314-321

Bio-Efficacy and Phyto-Toxicty of Azoxystrobin 23% SC against Powdery Mildew (Oidium mangiferae) and Anthracnose (Colletotrichum loeosporioides) Diseases in Mango
M.R. Ravikumar1*, Vithal Navi2, Yashaswini Sharma3 and Tippesh Chavhan4
1Department of Plant Pathology, 2Department of Agricultural Microbiology, 3Department of Horticulture, College of Agriculture, Hanumanamatti, Haveri, Karnataka-581115, India
4Institute of Organic Farming, University of Agricultural Sciences, Dharwad, Karnataka, India
*Corresponding author

Mango (Mangifera indica L.) is one of the best fruit in the world market affected by two fungal diseases, powdery mildew and anthracnose causing up to 90 per cent crop loss. Hence, an investigation was initiated to study the bio-efficacy of different standard and new fungicides against powdery mildew and anthracnose disease. The experiment was conducted at humid tropical regions of Karnataka, India during 2012-14 with six treatments of different fungicides, viz., Azoxystrobin 23% SC @ 1ml/L of water, Azoxystrobin 23% SC @ 2ml/L of water, Standard Azoxystrobin 250 SC (market Sample) @ 1ml/L of water, Standard Hexaconazole 5% SC @ 2ml/L of water, Standard Copper oxy chloride 50% WG @ 2.4g/ L of water along with one untreated Control. Two sprays were taken up at 20 days interval during flowering stage. Among the different treatments, Azoxystrobin 23% SC @ 2ml/L of water recorded significantly lower per cent disease index of powdery mildew on leaves, inflorescence and fruits (17.75, 17.24 and 16.64, respectively) than control (53.53, 51.94 and 50.10 per cent disease index on leaves, inflorescence and fruits, respectively). The same treatment recorded minimum incidence of anthracnose (6.94) and maximum productivity (28.63 t/ha) as compared to control (14.85 and 12.85 t/ha, respectively). There were no visual symptoms of phyto-toxicty noticed in terms of leaf tips and surface injury, wilting, necrosis, epinasty and hyponasty on mango crop by Azoxystrobin 23% SC treatment even at 4ml/L concentration.

Keywords: Mango,Powdery mildew, anthracnose, Azoxystrobin, Phyto-toxicity.

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How to cite this article:

Ravikumar, M.R., Vithal Navi, Yashaswini Sharma and Tippesh Chavhan. 2017. Bio- Efficacy and Phyto-Toxicty of Azoxystrobin 23% SC against Powdery Mildew (Oidium mangiferae) and Anthracnose (Colletotrichum gloeosporioides) Diseases in Mango.Int.J.Curr.Microbiol.App.Sci. 6(10): 314-321. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.