Rough Leaf Spot Of Sorghum
In the initial stage of the infection, small reddish spots appear on the leaves. Black pustules develop on the upper or lower surface of these spots, which break off easily and leave white craters with black surroundings. As the disease progresses, the spots enlarge and may turn dark red to purple with tanned center. These spots merge into one another and form larger lesions. At a final stage, leaves may die off.
The fungus spreads via spores. High humidity favors the infection. The fungus may survive on crop residues.
Sorry, we don't know of any alternative treatment against Ascochyta sorghi . Please get in touch with us in case you know of something that might help to fight this disease. Looking forward hearing from you.
Spray Bordeaux mixture (copper). Note that this can also cause a toxic reaction in the plants.
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