Mancheng County is the “Hometown of Chinese Mopan Persimmon†named by the Ministry of Forestry. Its Mopan persimmon is well-known at home and abroad. The fruit of the persimmon persimmon is orange-yellow and the fruit is sweet. It has been praised by people since ancient times. It has the reputation of “color wins gold, sweet and over jade liquidâ€. However, pests and diseases reduce the quality of the Mopan persimmon and also reduce the yield. Therefore, the price of the Mopan persimmon is greatly reduced. This problem has always plagued people. Today, China's pesticide network Xiaobian will solve this problem for everyone and teach you how to prevent pests and diseases.
Pest Control Techniques The main pests on persimmon trees include persimmon, persimmon, grass mites, caterpillars, and moths. Common diseases on persimmon trees include persimmon plaque, round spot disease, anthracnose, and leaf blight. The pests are usually sewed in the old wing bark, and the trees are left in the hidden places such as persimmons or underground soil seams and stones. In the second year, the trees are harmed; the pathogens are also overwintering on the remaining persimmons and diseased leaves. Infested in June-August in the second year. In September and October, the degree of deciduous fruit drop was closely related to the rainfall situation in that year.
First, we must adopt the method of agricultural control, first remove the residual persimmon, dead branches, leaves, scrape the old bark on the trunk and the big branches and destroy them centrally; the autumn trunks bind the grass, trap the wintering pests, and the second year pests Removed and burned in front of the tree; deep tree trays in early spring can not only warm and protect the worms, but also expose wintering pests; the plastic skirt in early spring blocks the pests on the trees.
Secondly, the use of pesticides for prevention and control, after pruning, the whole tree sprayed 5 waves of sulphur sulphur mixture once, the whole park for comprehensive disinfection, insecticide and sterilization. If the grasshoppers and persimmons in the orchard are severe, they will be sprayed 600-800 times before the germination. After the persimmon flower falls, in the middle of June, 50% carbendazim 600 times solution or 70% methyl thiophanate 800-1000 times solution is used, and the interval is 10-20 days, and the drug is used 2-3 times. In the rainy season, pesticide manufacturers recommend using Bordeaux liquid (1:5:500) that is resistant to rain and has a longer protection period, or 600 times to 800 times that of green, and it is better to use it alternately with the systemic fungicide.
The above is the method and skill to prevent and cure the perennial pests and diseases of the persimmon. The pesticide net Xiaobian hopes to restore the reputation of the previous "Xinsheng Jinyi, Ganduyuye".
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