Question: Shortly after the celery is colonized, the base of the stem becomes brown and necrotic, accompanied by odor. What is the disease and how to prevent it?
The root knot description is a celery rot disease. Celery rot disease is also known as celery soft rot. It mainly harms the base and stem of the celery's petioles; it is light brown, water-stained, slightly concave, spindle-shaped, or irregularly shaped. Spots, with the development of the disease, the organization turned black, decayed, accompanied by odor, severe epidermis, dark brown after drying. The main pathogenic temperature of pathogenic bacteria is 25-30°C, and it is prone to morbidity in the case of wet and rainy conditions on the ground. Heavy gingivae, low phlegm, continuous cloudy and rainy days, and farm operations are heavy on rough terrain.
Control methods:
First, after the onset of planting, after the onset of osmotic seedling emergence, 50% Chlorobromoisocyanuric acid or 50% copper-calcium carbendazim can be used. Each 1500-2000 g of water per mu can be watered and prevented from occurring.
Second, 72% of streptomycin can be used for 3000 times or 2% of kasugamycin 1000 times or 5% of endotoxin 1500 times, spraying once every 5-7 days, severe, spraying once every 3-5 days, Can effectively control. Please refer to prevention and treatment.
Wound Dressing,Disposible Wound Dressing,Waterproof Silicone Foam Dressing,Medical Paraffin Dressing
Zhende Medical Co.,Ltd , https://www.zhendemedicals.com