At present, the pear tree is in the young fruit period, and the leaves have not yet fully grown to maturity. They are easily damaged by the green-lipped mites and bite on the leaves, resulting in wormholes and missing trees, affecting photosynthesis and causing the tree vigor to decline, resulting in the shedding of young fruit. And threatening the expansion of young fruit must be promptly controlled to protect the leaves and young fruit.

Specific prevention and control methods: Pay attention to the inspection of the leaves of pear trees, and find that the leaves are damaged by green-letter locusts. There are wormholes and missing trees. Spray 1,500-fold 4.5% cypermethrin solution or 1500-fold 2.5% deltamethrin solution on the leaf surface. Or 1500 times 5% cyhalothrin solution, or 1500 times 5.7% solution of stevia ester to control, evenly spray all the branches inside and outside the canopy, to start dropping drops is appropriate, after spraying 15 - In 20 minutes, the Lumbosacidae died in one fell swoop, killing more than 90%.

Disposable Laryngeal Mask Airway

Disposable Laryngeal Mask Airway

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