What causes celery heart rot? Detailed explanation of causes and control methods
What is celery fusarium wilt and how should it be controlled? 1. Use disease-free seeds or disinfect the seeds. When selecting mother plants for seed production, care should be taken to choose plants with disease-free petioles and stems and leaves, so as to avoid carrying the pathogen. Using old seeds more than 2 years old has a certain disease-prevention effect. If using new seeds from the previous year, the seeds must be disinfected; you can use 48-4...
What causes celery heart rot? How to control it? Celery heart rot: if it turns brown and develops dry rot, it should be caused by calcium deficiency. Control methods: First, be careful not to restrict water excessively; keep the soil moist. Second, supplement calcium. That is, when it first occurs, spray calcium fertilizer on the leaves. Calcium fertilizers commonly used for calcium supplementation include: Greenfenwei No. 3 or calcium chloride. Because calcium has poor mobility, some naphthaleneacetic acid should be added when using calcium chloride. The specific method is: first prepare naphthaleneacetic acid into a 5/ppm solution, use it as water, and prepare calcium chloride into a 0.3% aqueous solution. If the place selling the product has other similar calcium fertilizers suitable for foliar spraying, they can also be used.
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