Bacterial speckCaused by: Pseudomonas syringae
Problem Category: Bacterial Disease
Symptoms: Dark specks appear on the leaves, often associated with a yellow halo; foliar symptoms of bacterial speck are very difficult to distinguish from bacterial spot but can be differentiated by symptoms on the fruit; lesions on fruit are much smaller than those caused by bacterial spot; lesions on fruit are raised and scaly.
Comments: Disease emergence favors cool, moist weather.
Management: Do not plant in same area in successive years; use only high quality, disease-free seed and transplants; protective sprays of copper can help to reduce incidence of the disease.