According to the China Pesticide Network , cucumber powdery mildew, also known as "white hair" disease, is prone to yin. The disease occurs mostly in the middle and late stages of the plant, mainly affecting the leaves. In severe cases, it can extend to the petioles, stems and tendrils, but the fruits are usually less affected. At the beginning of the disease, small white spots appeared on the front and back of the leaves, which were enlarged and contiguous, and covered with a layer of white mildew. The edge of the white mold is not neat, and then becomes grayish white. The leaves are yellow, crisp and dry. Generally, starting from the bottom leaf, it gradually develops upward. In the later stages of the disease, in a bad environment, piles of yellowish brown to black small particles are produced in the white powder layer or on the surface of the aging leaves. Once the greenhouse is vaccinated, it develops rapidly. When it is serious, it can cause the leaves to dry up and even pull up early, which has a great impact on cucumber yield. In addition to harming cucumbers, it can also harm zucchini, melon, pumpkin, watermelon, melon, loofah and so on.
The pathogens are overwintered on the diseased body or the greenhouse with melons and closed capsules; the bacteria prefer high temperature and high humidity, but are resistant to drying, at a temperature of 20 to 25 ° C and a relative humidity of 70% to 85%. Most beneficial to the disease. In particular, the spring greenhouse cucumber is in a period of vigorous growth, which is also the peak period of fertilizer demand. Therefore, the agricultural conditions of the large fertilizer cause the environmental conditions in the shed to be suitable for the occurrence of powdery mildew, so even if various pesticides are used The control effect is not obvious.
Prevention and treatment methods: prevention and control of cucumber powdery mildew, prevention is the most important, farmers must be based on the situation, disease, disease, develop the habit of spraying protective fungicides, in order to ensure a good harvest.
(1) The use of fungicides, bacteriostatic agents, smoke treatment. (2) At the beginning of the disease, 2% agricultural anti-120 or Wuyimycin water 200 times solution, 10% Shigao 1500 times solution, 40% DuPont Fuxing 5000 times solution; 47% Jiaruinong 600-80O times solution can be sprayed. The medicine is used interchangeably, once every 7 to 10 days, and even sprayed 3 to 4 times.
The present invention provides a multifunctional pull faucet, comprising: a faucet body, a drawing part is provided at the water outlet port thereof, and the drawing part is connected to a main channel, wherein at least three are provided in the faucet body A branch channel, and the three branch channels are all connected to the main channel. A multifunctional pull faucet provided by the present invention, wherein the hot water channel, the cold water channel and the water purification channel (pure water channel) are all connected to the main channel , And the main channel is connected with the drawing part on the main body of the faucet, so that the drawing part can obtain the water quality (hot water, cold water, purified water or pure water) required by different users, thereby improving the user experience, and , By integrating the hot water channel, cold water channel and pure water channel (pure water channel) into the main channel, the internal structure of the faucet is simplified, and the production cost of the faucet is reduced.
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Yuyao Zelin Sanitary Ware Co., Ltd , https://www.kitchen-sinkfaucet.com