Celery rot is primarily caused by a deficiency of boron, which leads to longitudinal cracks at the base of the petioles, eventually resulting in soft rot. Initially, the affected areas on the petioles appear water-soaked. As the disease progresses, the tissue becomes soft and emits a foul odor. The outer leaves of the infected plants begin to wilt and turn yellow, which is a clear sign of the infection.
To manage this issue, it's important to disinfect the soil before planting. Applying 2 to 3 kg of borax per acre as a basal fertilizer can help prevent boron deficiency. During the growing season, spraying a 0.2% borax solution can further support plant health. If the disease has already occurred, you can apply a 50% dithiopyr (DT) solution or use streptomycin, applying it 2 to 3 times for effective control. Regular monitoring and early intervention are key to preventing widespread damage. Ensuring proper drainage and avoiding overwatering can also reduce the risk of this disease. It's recommended to rotate crops and maintain good field hygiene to minimize the chances of recurrence.
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