What are the diseases of cucumber flow plastics?

December 09, 2024

Cucumber bacterial wilt occurs mostly in the melon after flowering position, usually close to the melon strips. At the beginning of the disease, white gelatinous substances overflow at the top of the melon strips. The performance is that the melon head shrinks and white, and there is a small black spot attached. . Sclerotinia mostly occurs in the melon head at the end of anthesis with white colloidal particles, and the colloidal particles condense. The diseased part is rotted and decayed. A large number of white hyphae are produced in the humidity-sick area of ​​the shed, and after the dense entanglement of the mycelium, it is formed. A sclerotia like a mouse. Black fungus melons were infected, and the plastic flow began. After the pale yellow rubber particles appeared on the melon strips, they gradually expanded into dark green depression spots. The black mold layer grew on the surface, and the diseased part showed a scab-like appearance, forming a deformed melon. Bacterial keratoses can also cause turbid fluids when invading melon strips. Usually, they occur in the melon ribs. Sometimes they are less obvious and need to be carefully judged. In addition, when the air is too fast, it is easy to produce melon body flow glue, and the concentration of anthers is too high.

Therefore, according to the different parts of the flow of glue and some symptoms to judge, in order to correctly determine what is the cause of flow plastic. The three diseases of bacterial wilt, sclerotia, and scab are more severe in cloudy days and the humidity in the shed is high. Therefore, the temperature and humidity in the shed should be properly controlled, ventilation and ventilation should be increased, and old leaves should be removed in time. Transmittance between large plants to reduce the occurrence of diseases. Sprinkle disease can be sprayed with 25% of 100 times 1000 times solution or 25% Michamine emulsion 1500 times; Sclerotinia can be added with appropriate amount of acetaminophen in anther drugs, or sprayed with 50% ethylene bactericide at the early stage of disease. Or 50% speed Keling 1000-1500 times liquid, when the humidity in the greenhouse can be controlled by bacteriostatic net smoke agent, 200-250 grams per mu; Bacterial diseases can be sprayed with copper preparations, streptomycin, etc. Scabs occur less frequently in the Shouguang area and can be sprayed with 40% fluorosilicon (Fuxing) 4000 times.

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