The picture and prevention methods of radish anthracnose disease, today this article introduces the content of radish anthracnose disease, anthrax is widely distributed, and the incidence of the Yangtze River basin is heavier. The average disease rate is 10%-30%, and the seriously ill plot often reaches 50% soil. The radish anthracnose is mainly harmful to the leaves, and can also be harmful to the stems, leaf spotted spots, irregular, dark brown larger spots. After cracking or perforation, the leaves are yellow and dry. The petiole lesions are nearly round to fusiform, with a slightly darker color and depression.

Symptoms of radish anthracnose disease: lesions occur on leaves, stems or pods. A small water-spotted spot with a needle tip size, which is enlarged to a small brown spot of 2 to 3 mm in size. Multiple small spots can be merged into irregular dark brown large lesions. In severe cases, the leaf lesions are cracked or perforated. The leaves are yellow and the lesions on the stem or pod are nearly round or fusiform, slightly concave. When the humidity is high, the diseased part produces a pale red sticky substance.

Seriously ill plots and non-cruciferous vegetables are rotated for more than 2 years. Sowing in time, planting enough fully decomposed organic fertilizer, rationally cooperating with fertilization, increasing the application of phosphorus and potassium fertilizer, rational irrigation, and timely drainage after rain. Clear the field scum in time after harvest. Seed treatment. Seed dressing is carried out with a seed weight of 0.3% to 0.4% of 50% carbendazim WP, 25% bromocarbonitrile wettable powder or 50% prochloraz manganese compound wettable powder.

Strengthening prevention before onset, the following fungicides can be used for prevention and treatment: 25% bromocarbonitrile wettable powder 500 times liquid + 70% Daisen water-dispersible granule 800 times liquid; 40% more · Fu · bromide nitrile wettable powder 800-1000 times liquid; 60% methyl sulfide · iprodione wettable powder 1000-1500 times liquid; 70% Fu · A · sulfur wettable powder 600-800 times liquid; 5% imidazole wettable powder 1000 times liquid +75% chlorothalonil WP 600 times solution; spray, depending on the condition interval 7-10 days control 1 time.

Timely onset and prevention of drug application in the field. When the disease occurs, the following fungicides or formulas can be used for prevention and treatment: 20% pyraclostrobin water dispersible granule 1000-1500 times liquid; 25% prochloraz cream 1000-1500 times liquid + 70 % mancozeb WP 600-800 times solution; 40% nitrile water dispersible granule 4000-6000 times liquid + 70% mancozeb WP 600-800 times solution; spray, depending on the condition interval 5 - Control 1 time in 7 days.

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