What kind of vegetable is Cigu? What are the prevention and treatment methods for zebra disease?

Sagittarius is a vegetable with a long history, as early as the Tang Dynasty there are their appearance. Sagittarius can not only eat, but also has a certain medicinal value, for cooling blood to stop bleeding, cough Tonglin, Sanjie detoxification, and stomach thick intestine and so on have a certain role. China is mainly planted in the provinces south of the Yangtze River. What are the prevention and control methods for the occurrence of stripe disease in the growth process of Sagittarius?

What kind of vegetable is Sagittarius?

Sagittarius is a unique vegetable in China, suitable for water growth, rooted in the south of the Yangtze River, Jiangsu and Zhejiang areas for the main production areas, varieties have "Suzhou yellow","Baoying purple circle", etc., Pearl River Basin, Yunnan and other places also produce Sagittarius, varieties and my township have different. The arrowhead mushroom grows in the pond, graceful and graceful, its leaves resemble cut taro leaves, so I have always understood it as taro in water, and for viewing.

The best way to cook sagittarius is to cook sagittarius meat. Sagittarius meat, pay attention to, the smaller the better, the smaller the more delicious children.

2. What are the prevention and treatment methods of Sagittarius striata?

1. Symptoms of Sagittarius mottle disease

Sagittarius fleck disease is also a fungal disease, it is mainly harmful to the leaves of Sagittarius, but also has a certain harm to the petioles of Sagittarius. When the stripe disease occurs, there will be grayish brown spots on the leaves, oval, polygonal, but irregular.

The pathogen overwinters in the form of mycelium and conidia left in the soil with the diseased body, or overwinters in the form of mycelium attached to the diseased plant of arrowhead and weeds of the same family, and the seed ball can also carry the fungus. Conidiospores are produced when the weather turns warm in the next year, which are transmitted by airflow and rain and invade plants to harm them. Conidiospores were produced continuously to re-infect the disease, which made the disease spread and aggravate continuously.

Continuous cropping, partial application of nitrogen fertilizer, application of undecomposed organic fertilizer, excessive lotus plant density, poor ventilation and light transmission performance of the field serious disease. High temperature and rain, continuous rain, insufficient sunshine or frequent storms are easy to induce the disease; plant growth is weak, field water temperature is higher than 35℃ easy to occur.

2. What are the prevention methods of arrowhead stripe disease?

(1)Breeding and planting disease-resistant varieties according to local conditions.

(2)Strengthen cultivation management. Formulate fertilization, avoid partial over-application of nitrogen fertilizer; manage water layer according to different growth stages, especially pay attention to timely water change during bulb formation and expansion period, and avoid long-term deep irrigation. Reasonable close planting, clearing weeds in the field, and clearing diseased tissues in the field after harvest. The application of soil testing and formula fertilization technology, proper increase of phosphorus and potassium fertilizer, strengthening field management, cultivation of strong seedlings, strengthening plant disease resistance, are beneficial to reduce diseases.

(3)Seed ball treatment. Select disease-free field to keep seeds, and before planting chemical treatment, can be 40% triadimefon carbendazim 1000 times solution immersion for 2 hours.

(4)Before winter, plant residues and surrounding weeds in the arrowhead field were removed, deep ploughing and harrowing were carried out, and quicklime 1500kg/hm or chemical sterilization was applied.

(5)The diseased plant remains should be thoroughly removed and burned or buried in a centralized manner.