How to prevent and cure snake eye disease of Auricularia auricula

Auricularia auricula (scientific name: Gynura cusimbua), also known as babbling, sunflower, tofu, purple horn leaves, chrysanthemum Panax notoginseng, perennial tall herbs, 1.5-2 meters high. Flowering and fruiting period is from September to October. Auricularia auricula vegetables are fed by seedlings, tender shoots or tender leaves, with tender and smooth texture and high nutritional value. Can be used for soup, stir-fry, hot food, cold, etc., its taste is fragrant, chewing like eating fungus generally crisp and refreshing, hence the name agaric dish. It is widely cultivated in the south and north, perennial cultivation in the tropical areas of the south, and annual cultivation in the north.

Edible value of Auricularia vegetable

Leaves contain a variety of vitamins and calcium, iron, can be used as cultivated vegetables, but also ornamental. The whole herb is used as a laxative and has the effect of slippery intestines, heat dissipation, defecation and defecation; flower juice has the effect of clearing blood and detoxification, can detoxify acne, external application to treat carbuncle and nipple rupture. Fruit juice can be used as a harmless food colorant.

Ornamental value of Auricularia auricula

Agaric vegetable is a vine-type vegetable with many branches and vines. People can make use of this feature to afforest the courtyard balcony. Its leaves are broad and thick, smooth and shiny. Rice-like flowers red and white, scattered in the leaves, dazzling, very charming; from green to purple and then black flesh and fruit interspersed with it, very interesting. Whether urban or rural, if some are planted on the balcony and courtyard, it can not only be eaten by the whole family, but also beautify the living environment.

Agaric vegetable snake eye disease how to prevent and cure?

What is snake eye disease?

Snake eye disease, whether protected or open-field Auricularia auricula, is common and serious, and it is an important disease of agaric.

Symptom recognition of serpent eye disease with auricularia auricula

The disease is mainly harmful leaves, the disease spot is purple-brown at first, and then the disease spot develops into a round or nearly round spot, the central part is grayish brown or yellowish brown, the edge is purplish brown, a little depression, into a film, because the quality is thin, it is easy to rupture and perforate at last, there are not obvious small black spots on the disease spot, and when serious, the whole leaf is covered with disease spot, lost its commercial value and cannot be eaten. Identification points: the edge of the spot is purplish brown, the middle is grayish brown or yellowish brown, showing a membrane, easy to rupture in the later stage, and there are not obvious small black spots on the spot.

The incidence regularity of auricularia auricula serpent eye disease

1. The pathogen Auricularia auricula vegetable snake eye disease is caused by the infection of Cercospora sp. The conidiophores are light brown, thick and short, and the conidia are linear, colorless or light.

2. the pathogen overwintered on the soil surface with mycelium or conidia (in the warm areas of the south, there is no overwintering problem). When the environmental conditions were suitable in the second year, the hyphae produced conidia or conidia for primary infection. After the disease, a large number of conidia were produced in the disease part, which were transmitted by airflow or Rain Water and irrigation water for re-infection.

Prevention and treatment of snake eye disease in Auricularia auricula

1. Agricultural control

1) rotation with melons, eggplant fruits, legumes, cruciferous buckles, lilies and other vegetables for more than 2 years.

2) the planting density of reasonable close planting and scientific watering should not be too large, and the watering should be sunny and not excessive, so as to prevent flood irrigation, timely drainage after rain in the rainy season, strengthening ventilation and reducing humidity after watering the protected field, and loosening the soil in time after rain in the open field.

3) apply sufficient fertilizer, fully mature manure, and increase phosphorus and potassium fertilizer to improve the disease resistance of vegetable plants.

4) the diseased leaves in the clean countryside should be removed in time. In addition, the fallen leaves of the diseased body should be removed thoroughly after harvest and taken out of the field for deep burial or burning.

2. At the initial stage of biological control, 2% Wuyimycin (agricultural anti-BO-10) water agent or 2% antimycin (agricultural anti-120) water agent can be sprayed once every 6 days for 4 times in a row.

3. At the initial stage of the prevention and treatment of pollution-free pesticides, 45% Teketo suspension can be sprayed; agaric vegetables planted in protected areas can use 3.3% Teke multi-smoke agent, 250g every 666.7 square meters, fumigated once every 7 days, for 3 consecutive times.