Pea Anthracnose

Symptoms The disease mainly affects stems, leaves, and pods. Stem lesions are nearly spindle-shaped or elliptical, with a light brown center and slightly dark brown edges. Leaf lesions are spotted round or oval in shape, 2-4 mm in diameter, dark brown on the edges, dark green or light brown in the middle, dense black spots on them, ie conidiospores of pathogenic bacteria, severe disease, lesions caused by fusion of leaves . The lesions are round or near-circular, with a size of 2-5mm. The lesions are light green in the middle, dark green on the edges, and dense black spots. When the humidity is high, the disease minister produces pink mucilage, which is different from brown spot. And brown streaks.

The pathogen Colletotrichum pisi Pato Patouilard called pea anthrax, a fungus belonging to the fungus Subgenie fungus. The conidia were buried at the beginning of the plate, and then they broke through the epidermis. The conidium plate had dark brown bristles. The top was pale and slightly pointed. The conidiophores were diametrically drilled, colorless; the conidia were sickle-shaped or spindle-shaped. The unit cells are colorless and are 9-233-5 (μm) in size. The growth of pathogenic bacteria is suitable for a temperature of 20-30°C. In addition, C. lindemuthianum (Sacc. et Magn,) Bri.et Cav. is also the cause of the disease.

Transmission Pathways and Pathogenic Conditions Pathogens use mycelia to survive in the body or lurk in seeds. When conditions in late spring are suitable, conidia spread through rain splashes and carry out initial infestation and reinfestation. The disease mainly occurs in the high-temperature and rainy periods of spring and summer, and it expands with the continuous rainy days, low-lying land, poor drainage, and weak growth of plants.

Control methods (1) Rotate seriously with non-legume crops. (2) Selection of disease-resistant varieties such as Shi Ying Da and Nei Lu No. 1. (3) Remove the diseased body promptly after harvesting, deepen it in time, reduce the source of bacteria; rationally apply fertilizer and increase potassium fertilizer; pay attention to drainage in the rainy season and reduce the humidity in the field. (4) Spray 50% pheniryl WP 1500 times or 50% thiophanate-methyl WP 500 times, 50% carbendazim WP 500-600 times, 70% DES Manganese zinc wettable powder 400 to 500 times, 75% chlorothalonil wettable powder 600 to 700 times, 80% anthrax Fumei WP 800 times, 80% New Wansheng WP 500 to 600 times, 25% carbon tetrachloride wettable powder 500 times. Every 7-10 days, continuous control 2-3 times.

There are many folk names for Chinese wolfberry, such as Gouqizi, wolfberry red fruit, beet, western wolfberry, dog milk, red green pepper, wolfberry hoof, wolfberry fruit, ground bone, wolfberry eggplant, red eardrop, blood wolfberry, wolfberry bud, wolfberry bean, blood wolfberry, wolfberry. In the main producing area of Lycium barbarum in Ningxia, in Zhongning County of Ningxia Province, farmers are used to call Lycium barbarum as "tz", which is terrestrial Tribulus terrestris. This is because the wild wolfberry is similar to the Tribulus terrestris, often mixed for firewood, in the folk "Ci" as the common name of wolfberry.

Epimedium brevicornu Maxim.) is a perennial herb with 20-60 cm height, short rhizome, dark brown, double-triple basal and stem-forming leaves, long petioles, small leaves, papery or thick paper, prickly-toothed margins, white or yellowish flowers, flowering period from May to June, and fruit period from June to August.

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