The first flowering period and fruit enlargement period are the second prone period for vegetable diseases. At this time, it is a volcanic day and a rainy season. The humidity in the field is large, and the disease easily occurs. It has a great impact on the yield and is the key to the prevention and control of vegetable diseases. Period of time. The cause of the disease is the transfer of vegetables from vegetative growth to reproductive growth, resulting in a decrease in nutrients and resistant substances in the leaves, creating favorable conditions for the invasion of bacteria. At the same time, the closed plants in the field, poor ventilation and light transmission, and rain after rain are all conducive to disease. For the prevention and treatment of diseases at the early flowering stage and fruit enlargement stage, the following work should be done: cultivate robust plants, enhance stress resistance, promote high-riding cultivation patterns; do a good job in field management, scientifically apply biological fertilizers and high-quality foliar fertilizers, and activate plant immune systems. , to improve disease resistance and yield; to prevent disease-based, supplemented by treatment, prevention and control of the principle, in the absence of disease can be used 25% Amisida Suspension and other protection for prevention, for the disease, downy mildew, anthrax Diseases, such as diseases, are usually sprayed once every 7 to 10 days, and the disease can be controlled by spraying 3 to 4 times.
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