September-December Pear Disease and Pest Control
I. Fruit harvesting period (from September to October)
1. Pest control. The main control objects include pear hibiscus, yellow peony, and leafhopper. The prevention measures are as follows:
(1) See pear hibiscus, yellow peony root, spray yi pear smash, wolfberry without trace, carbazole salt + avermectin + gold brake.
(2) In mid-October, the middle or late August was tied to a tree to trap the grass or rags of wintering adults, larvae, and green leaf aphids, and burn them together.
(3) Amur leafhoppers began to spawn in mid-September. Most of the adults were clustered in the weeds. Two insecticides were sprayed in intervals of 3 to 5 days in mid-September. Chlorpyrifos, Pyramid, Acetochlor, and Parathion could be used. , Baifazhong, Dichlorvos, etc., before 9 o'clock in the morning. Once the Oviductus spawns eggs on the tree, it is necessary to promptly press the egg pieces and apply the agent for preventing rot on the wound, and then wrap the wound with plastic cloth.
2, disease prevention and treatment. The main prevention and control targets are early defoliation and rot diseases. The prevention and control measures are as follows:
(1) spray farmers heart care, broken black, methyl ether tricyclazole, Dasheng M-45.
(2) In September, the rot must be promptly scraped and the drug applied.
3, control of physical diseases caused by deficiency.
Base fertilizer, method and dosage are the same as from January to April (without applying nitrogen fertilizer) Pay attention to watering after fertilization.
Second, off-fat period (from November to December)
At this stage, we must pay attention to the prevention of freezing injury, daily burning and other diseases. The following measures can be taken:
(1) In the early November, the whole garden was sprayed and sprayed (to sterilize the whole garden). Pharmacy has Bo doctor 783, lime sulfur, Jing Yuan bacteria.
(2) trunk white: whitening agent. The proportion of preparation: 15 kg of white ash, 2.5 kg of sulfur, 1 kg of soybean milk, 0.5 kg of soybean oil, and 9 kg of water.
(3) Spray antifreeze once in early November. The whole garden was to be sprayed under the tree.
Disposable Video Laryngoscope,Intubation Video Laryngoscope,Glidescope Video Laryngoscope,Hugemed Video Laryngoscope
Jiangsu Yongle Medical Technology Co., Ltd. , https://www.jsylmedical.com