Incidence of the law: the pathogen is a sub-genus of the genus, anthrax of strawberry hairy genus. The pathogens overwinter in the soil with the affected debris. The conidia usually occur in the high-temperature season from July to September, and spread by wind and rain. The incidence of continuous disease is heavy, the old and the residual leaves are more, the plants are too long, the plants are too dense, and the ventilation is easy to cause disease. Control methods: 1 Select disease-resistant varieties such as Xinxing Star, Daxel Lake, and Baojiao Zaoxian. Lihong, Fangyu and other varieties are susceptible; 2 nursery nursery and artificial garden nursery rotation, and strengthen plant and stolon management during nursery. Remove diseased leaves, diseased stems, dead old leaves and other diseased bodies in time; 3 Spray with 2% Wuyimycin in the early stage of disease, concentration 5 ml/-Yl-, spray once every 7-10 days, even spray 2 ~ 3 times, there is a good control effect; 3 chemical control. In the growth stage of stolons can be sprayed 75% chlorothalonil 600 times, or 2% agricultural anti-120 water agent 200 times, or 50% captan Dan 500 to 800 times the liquid for prevention and treatment. Or 80% of anthrax Fumei 500 ~ 600 times liquid and so on. Convenience Food
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The prevention and cure of strawberry anthracnose
Symptoms of damage: The disease mainly damages stolons and leaves, flowers and fruits can also be infected, and the suitable temperature for disease is about 30°C, which is a typical high-temperature disease. Symptoms can be divided into local lesions and wilting of the whole plant. When the stolons and petioles develop, near-black oval lesions occur. The lesions are ulcers and depressions. When the humidity is high, brucella is produced on the lesions. In the early stages of the disease, the whole wilt-type diseased plant had only 1-2 young leaves that drooped during the day and recovered in the evening, but died after a few days. The disease-free new leaf remained green and not deformed. The stem of the dead plant gradually changed from outside to inside. Brown, only the vascular bundle does not change color.