In the process of planting radish, radish anthracnose often occurs, which seriously affects the yield of radish. So, how should radish anthracnose be prevented?
Radish anthracnose control Linyi Fertilizer Network Copyright
Occurrence of anthracnose radish Linyi fertilizer Copyright
The disease is caused by the infection of Fusarium oxysporum, a fungus of the fungus. The pathogen is left in the field with the mycelium and the disease remains in the winter and summer. It is also possible to lurk the mycelium in the seed coat and the conidia are attached to the surface of the seed for wintering and summering. Linyi Fertilizer Network Copyright
When the conditions are suitable, the mycelium produces conidia, which is splashed by the rainwater to the host. The spores sprout to produce the germ tube, directly invade from the host epidermis, and after 3 to 5 days of incubation, lesions appear in the affected part. Conidia are produced and reinfected several times to aggravate the hazard. Linyi Fertilizer Network Copyright
The pathogens prefer high temperature and humidity, and can grow and develop between 13 and 38 °C, but it is optimal at 26-30 °C. Therefore, early in the autumn, in the case of rainy weather, favorable diseases occur; spring disease often occurs lighter. Linyi Fertilizer Network Copyright
How should radish anthracnose be prevented? Linyi Fertilizer Network Copyright
1 Use disease-free seeds or seed treatment: It is best to harvest seeds from disease-free seed plants, or use 50 °C warm soup for 20 minutes and then immediately transfer to cold water to cool; or 50% carbendazim 600 times liquid or 50% Fumei Soak the seeds with 200 times of liquid for 20 minutes, rinse the liquid, and dry and sow. Linyi Fertilizer Network Copyright
2 rounds: Rotating with non-cruciferous vegetables every other year to reduce the source of pathogens in the field. Linyi Fertilizer Network Copyright
3 Strengthen field management: rational close planting and rational fertilization. Remove the diseased body in time after harvest, deepen the soil, and accelerate the decomposition of the diseased body. The severely ill area is suitable for late sowing, avoiding the hot and rainy season, and the suburbs of Hangzhou should be planted at the end of August and early September. Linyi Fertilizer Network Copyright
4 chemical control: the agent is selected from 25% Shi Baoke EC 3000-4000 times liquid, or 70% product dry suspension agent 600-800 times liquid, or 50% Tsuibei dry suspension agent 3000-4000 times liquid, or 25% Amishida Suspension 1000 - 1500 times solution, or 25% Green emulsifiable concentrate 1500 times solution, or 25% Prochloraz emulsifiable concentrate 1500 times solution, or 80% Dasheng M-45 WP 600 - 800 Double liquid, or spray wettable powder 600-800 times liquid, or 70% methyl thiophanate wettable powder 1000 times liquid, or 50% carbendazim wettable powder 800 times liquid, or 75% chlorothalonil Wet powder 600 times solution, or 80% anthrax Fame WP 800 times solution. Linyi Fertilizer Network Copyright
Spraying at the beginning of the disease, spraying once every 10 days, a total of 2 - 3 times. Linyi Fertilizer Network Copyright
Radish anthracnose control Linyi Fertilizer Network Copyright
The above is the prevention and control method of radish anthracnose that Xiaobian gives to everyone. I hope that everyone can seriously understand and apply what they have learned, do a good job in the prevention and control of radish pests and diseases, and make an effort for their own agricultural production. Linyi Fertilizer Network Copyright
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