Apple deciduous fallen fruit suffering from spotted deciduous disease

There is no reason why there is an apple orchard in Hujiazhuang Village, Zhongzhuang Town, Ziyuan County, Zibo City, Shandong Province.

Apple drop fruit is actually a disease of spotted leaf disease

"The fruit trees should have spotted deciduous disease." Mr. Wei graduated from the fruit tree major at Shandong Agricultural University to use his professional knowledge to help fruit farmers answer some of the questions. Symptoms of spotted deciduous disease usually begin with new leaves, appear brown irregular round spots, and then appear off, fruit trees grow worse, the fruit also will stop growing, in serious cases, the fruit will appear round spots, let it Development is falling leaves and fruit. According to Mr. Wei, spotted defoliation disease is a fungal fruit tree disease, which is caused by the entry of fungi into the stomata of the leaves of fruit trees, which leads to the infection of fruit trees.

Causes of fruit trees

Apple trees generally begin to use pesticides from the beginning of spring, but if there is effective precipitation within 72 hours after the pesticide is sprayed, it will need to be re-sprayed. Effective precipitation does not mean drizzle. If precipitation is large and there is a flushing effect on the leaves, it will affect the effectiveness of pesticides. As to why there are several families in the village, the orchard is not sick. Mr. Wei estimates: “It may happen that the rainy season just missed the rainy season, or after the rain, the farmer once again sprayed pesticides.” Mr. Wei suggested that if the farmers concerned about the quality of pesticides Problems can be carried with residual pesticides, to the Zibo City Academy of Agricultural Sciences and other professional departments for inspection, through the test results to determine whether there is a problem with the quality of pesticides.

Scientific cultivation is the key

Mr. Wei said that fruit trees have fallen from the fruit trees this year. Losses have already been produced. The possibility of recovery is relatively small. It is imperative to deeply bury or burn the fallen leaves and fruits, and not to stack them in the field to prevent the infection of other healthy fruit trees. It is also not conducive to the restoration and growth of fruit trees the following year. In late autumn of this year, fruit growers should implement deep plowing around 30cm in the orchard, plow the line one by one, and then apply farmhouse manure. In the third year, the orchards may undergo normal maintenance. By the third year, the fruit trees will have a large area of ​​flowering. By then, the fruit growers should deal with the orchards by “splitting flowers and thinning fruit”. Do not be greedy and keep the output at ordinary annual output. Below, do not exceed 3,000 pounds per mu.

Mr. Wei reminded the broad masses of fruit growers that fruit trees must be grown without size and size. Otherwise, not only the quality of the fruit will be affected, but also the fruit's grade cannot be improved. The cultivation of orchards is a very labor-intensive activity. The fruit growers must do what they can, and must not be greedy. If the conditions are not met, do not contract large-scale orchards.

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