This is caused by the damage of wood worms, and it is one of the main diseases that have jeopardized fruit tree branches in recent years. The worm has a generation in 2~3 years, which harms the xylem and the medulla. The affected part has a row of manure holes at a certain distance, and red and brown manure is discharged and accumulated on the ground.
Control method: The trichlorfon or dichlorvos can be inserted into the needle tube, and the hole can be sealed with mud to kill the woodworm. You can also use the cotton cockroach pesticide dichlorvos, stuffed into the insect eye, and sealed with mud or tape on the outside, you can kill the wood worm inside. In addition, the fruit growers can also spray the pesticide into the insect hole during the process of giving the orchard an insecticide such as imidacloprid to kill the woodworm.
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Freeze-drying powder process includes: fresh fruit selection - cleaning - cutting - blanching - cooling - drying - grinding beating - gel grinding - sterilization - pre-freezing - vacuum freeze-drying - ultra-fine grinding - weighing packaging - testing - finished product.
Firstly, fresh and mature fruits with good quality were selected in the pre-treatment area of the food lyophilizer, and the leaves were removed to remove impurities. Then, preliminary cleaning and simultaneous sterilization of fruit surface were carried out. After sterilization, the fruits were cleaned and drained again. After the drain, the fruit is sliced and treated by blanching process. After the color preservation, the fruit is treated by pulping, and then pasteurized. The pretreatment process is finished before lyophilization.
The processing core of freeze-drying powder is the equipment area of food freeze-drying machine. After pre-treatment, the fruit enters the equipment of food freeze-drying machine and crystallizes into a solid state at low temperature, and then sublimates and dries in a vacuum environment to obtain freeze-drying products with little water content. Freeze-dried products out of the warehouse into the food freeze-dried post-processing area, ultrafine grinding, and then according to the need to do weighing packaging, after testing the finished products packed into storage.
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