Bacteria from the Pseudomonas genus cause diseases on a variety of plants, symptoms include leaf and stem spots, cankers, blisters on fruits, soft rot, and galls.
Signs of damage:
Common, Persian, Chinese, and Japanese lilac leaves develop round to irregularly shaped brown spots with yellow halos. These spots enlarge and blight entire leaves. Succulent twigs are girdled, killed, and turn black.
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