The disease is caused by a bacterium. Symptoms first appear as tiny, water-soaked lesions. When the leaf is held up against a light source, the lesions are translucent. Over time the lesions begin to form chlorotic halos and resemble leaf scorch and leaf blight. The bacterium is spread by rain and wind.
Control is difficult.
Rotation out of infested fields should be practiced. Consult the label for dosage rates and safety precautions. Virus diseases of strawberries are not well enough distinguished to warrant treating them other than as virus complexes. Neither are the symptoms well enough defined to warrant specific descriptions. Symptom expression can vary from stunted chlorotic plants to just slightly off color and vigor, or perhaps all symptoms are masked.