What to do if hollow vegetable suffers from white rust
① selected disease-free seeds or mixed seeds with 0.3% seed weight of Manganese Zinc. ② the disease is only limited to infect Convolvulaceae vegetables. After 2-3 years of rotation, the disease control effect is good. ③ should pay attention to the discharge of stains in the field and ventilation of sparse plants. At the initial stage of the disease, ④ was sprayed with 48% metalaxyl manganese zinc wettable powder, 40% methyl cream copper wettable powder, or 64% disinfectant alum wettable powder 600x liquid, 72.2% Procrylic water agent 800x liquid, once every 7 to 10 days, continuous prevention and treatment for 3 times.
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Asparagus and its cultivation points
Ipomoea aquatica, also known as Ipomoea aquatica, Ipomoea angustifolia and Ipomoea aquatica, is an annual or perennial vine of the family Spirulaceae. Asparagus is eaten with tender stems and leaves. Asparagus has a long harvest time and is a leaf vegetable growing in summer, which can make up for the market structure of less-leaf vegetables and more fruit vegetables in summer in Liaoning Province. The branching ability of spinach to extract tender shoots from leaf axils.
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Brown spot of Chinese cabbage
The symptoms were yellow-brown dots at first, and then expanded into round to oval, or irregular black-brown spots with a diameter of 4mm and obvious edges. When the disease is serious, the disease spots are connected to each other, and the diseased leaves wither and die. The disease occurs easily in rainy and humid weather or out-of-season cultivation. The method of prevention and control.
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