What are the management methods after the Ya pear fruits set?
How should Ya pear be managed after the fruits set? Please give some guidance. After the Ya pear fruits set, you can refer to the following methods for management: 1. Fertilizer and water management. This period is the stage of complete flower bud differentiation, and the demand for fertilizer is relatively urgent, so promptly apply a topdressing of quick-acting fertilizer. According to the size of the tree and the number of fruits set, apply per tree a high-nitrogen, low-phosphorus...
How should Ya pear be managed after the fruits set? Please give some guidance.
After the Ya pear fruits set, you can refer to the following methods for management:
1. Fertilizer and water management. This period is the stage of complete flower bud differentiation, and the demand for fertilizer is relatively urgent, so promptly apply a topdressing of quick-acting fertilizer. According to the size of the tree and the number of fruits set, apply per tree 1.5-3.5 kg of a three-element compound fertilizer with high nitrogen, low phosphorus, and high potassium, and spray the leaves with a 0.3% potassium dihydrogen phosphate solution, or 500 times diluted Yongye Life Element 1-2 times, to promote fruit expansion and increase the sugar content of the fruit. During the rainy season, rainfall is heavy, so pay attention to draining standing water in time to avoid root suffocation.
2. Hanging and propping branches. Fruit expansion increases pressure on the fruit-bearing branches of the tree. To prevent the fruit branches from splitting and breaking, promptly hang the fruit branches with straw rope, or prop up the fruit branches with forked wooden poles.
3. Pest and disease control. It is currently the rainy season, and high temperature and high humidity are conducive to the occurrence and spread of diseases, so great attention should be paid.
1. Black spot disease. It is a devastating disease of Ya pear, and great effort must be made to strictly control it. Spray before rain for prevention and after rain for control; spray heavily after heavy rain, and spray whenever it rains. The main chemicals used are 40% DuPont Fuxing 10000 times, or Keshade Sanqian 2000 times, or 10% difenoconazole 3000 times.
2. Ring rot disease. Use 80% tebuconazole 5000 times, or 68.75% DuPont Yibao 1200-1500 times, or 60% yi-duo 1000 times.
3. Yellow mealworm. Use 10% imidacloprid 2000 times, or 5% acetamiprid 1500 times plus 4.5% beta-cypermethrin 2500 times.
4. Comstock mealybug. Use 48% chlorpyrifos 1000-1500 times plus 2.5% kungfu 2000 times.
5. Fruit borers. Use diflubenzuron 1000 times plus 4.5% beta-cypermethrin 1500 times.
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