What is the dead cherry tree

Wang Xinrui, from Nijiazhuang Village, Chengguan Street, Lintong County, sent a WeChat message to the column group, saying that there was a phenomenon of dead trees in the family's cherry, and there were two or thirty trees when they died. After receiving a WeChat message from Wang Xinrui, the reporter contacted Zhang Chuanyi, a researcher at the Weifang Academy of Agricultural Sciences, and rushed to Nijiazhuang Village, Chengguan Street, Lintong County.

Under the guidance of Wang Xinrui, the reporter came to the cherry shed in her house. As soon as she entered the shed, the reporter saw a cherry tree with yellow leaves. Many dead branches were piled on the ground. Many cherry trees were also cut and shaved. Come out and fall to the ground.

Wang Xinrui said that a total of 132 trees were planted in her shed. The trees are all 13 to 4 years old. Now it is the fruitful period. One tree can bring her more than 1,000 yuan in income every year. These 20 trees The direct loss was nearly 30,000 yuan.

After listening to the introduction, Zhang Chuanyi observed these dead cherry trees and let them plan one on the spot. After observing several trees, Zhang Chuanyi reached a conclusion.

"These trees have a disease called white streak disease. There are obviously some white mycelia on the roots of the trees, and these mycelia have caused the rotten roots of the cherry trees." Zhang Chuanyi said.

After speaking of white streaked feather disease, Zhang Chuanyi found another disease on another tree. He said, "This tree's dead tree is caused by a nodule. This is called root cancer. Root cancer is a bacterial disease. After the tumor grows, the root absorbs nutrients poorly, the weak tree leads to yellow leaves, and eventually the entire tree dies. "

After reading the condition, Zhang Chuanyi gave a solution: root cancer is a bacterial disease, it is best to use bactericidal drugs, such as streptomycin sulfate, killable, DT or copper thibacteria, for root irrigation .

For the prevention and treatment of white streaked feathers, Zhang Chuanyi said, use 43% of tebuconazole 2000 times, plus 50% of methanonium 500 times, or add 50% of bacteriostat 250-300 times, and add a rooting agent To irrigate roots together, it can prevent and cure white streaks.

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