Jujube spring garden is an important task in the management of jujube trees. It can effectively eliminate overwintering eggs, pests and various germs, and reduce the damage of jujube trees.
1. Scrape the bark. The main purpose of scraping the bark is to control various pathogens and pests that overwinter in the bark seam. The main insect pests controlled by this method include jujube tree spider mites, nail beetles, date wax turtles, jujube mealybugs and red edge beetles. The main diseases to be controlled by this method include ringworm disease and anthracnose disease. At the same time scraping bark can also promote the metabolism of the tree, which is conducive to the normal development of the jujube tree.
The time for scraping the bark is better when the spring temperature starts to rise, generally from February to early March. When the bark is scraped, the main skin and the main branch are mainly scraped off by the rough skin and the curling skin. The scraping is too light to function. The scraping is too heavy to easily affect and destroy the xylem and the formation layer of the tree. Generally, the trunk is not grasped. Lubai is appropriate. Remember to bring all scraped skins out of the park or centrally destroy them.
2. Pick up pests and fruits and destroy them centrally. Most of the bad dates left on the ground are pests and jujubes, which contain a large number of pests (eggs) and germs. Ground defoliation is also the disease leaf (date rust, etc.). If there is no pick in the fall, these pests, fruits and pests should be promptly removed in the early spring and brought out of the ground to be destroyed to prevent the re-infestation of pathogens or eggs.
3. Spray the medicament. Spraying lime sulfur before jujube germination can eliminate some of the wintering pests and pathogens; spraying 30% dragon light Fulian suspension 400 to 600 times, or 77% Daning wettable powder 300 to 400 times, or 60% Wet powder 300 to 400 times the liquid, while adding 20% ​​faster Ling 1000 times, eradicate the tree winter fungus and wintering pests, the better.
This device is used to delivery supplemental oxygen to a patient or person in need of extra oxygen.
Nasal oxygen cannula is made from medical grade PVC, consists of connector (universal connector is available), oxygen tubing (usually the length is 2M), nose tip, Y-shape connecting tube.
Features:
1. Green color and white transparent color are both available;
2. Transparent clear tube is helpful for inspection of gas delivery;
3. DEHP Free PVC is available;
4. Softer nose tip can be chosen;
5. Available of three basic sizes, adult, pediatric and infant, and if needed, neonate size is available;
BPAP HF,Niv Mechanical Ventilation,Non Mechanical Ventilation,Non Invasive Pressure Ventilation
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