I. Hanging branches: The pear branches are soft. When there are a lot of results in the fruiting period, most of the fruit branches sag and grow, and they are easy to split when the result is excessive. You can tie the long scorpion in the middle and hang the pear tree branch on the raft to prevent chapping. It is also possible to use a long wooden pole with a hoe to prop up the pear in the middle to prevent lychee due to excessive results.
Second, pest control: In the autumn according to the occurrence of pests and diseases, spray 1 or 2 times a month, 50% dichlorvos plus 40% hirudin, can control aphids, red spiders, pear star caterpillars, pear small heartworm, peach small heartworm And various leaf curlers. Every 15 to 20 days, a 50% carbendazim WP 500-600 times solution or 70% methyl thiophanate 800 times solution is sprayed on the pear orchard, black spot disease, and mildew disease to control the disease.
Third, topdressing and watering: Since the new shoots of pears have only one growth peak in a year, the new shoots stopped growing in July, so there is no control phenomenon in the growth of pear shoots. In order to promote the expansion of the fruit and the improvement of the degree of flower bud differentiation, a quick-acting fertilizer can be applied in the rapid growth period of the fruit. Each plant is applied with 0.3-1.5 kg of nitrogen, phosphorus and potassium compound fertilizer according to the size of the tree, and 0.3% of the root is applied. Potassium dihydrogen phosphate 1 to 2 times. Watering in time after topdressing to accelerate the conversion of fertilizer and promote the absorption and utilization of fertilizer. Applying the base fertilizer in time after picking the fruit, supplementing the nutrients consumed by the tree due to a large number of results, can apply 50~250 kg of organic fertilizer per plant according to the size of the tree, 5-10 kg of superphosphate, 1-2 kg of ammonium nitrate, fertilization The depth should be less than 25 cm. Before the soil is frozen after the defoliation, the whole garden is filled with winter water to facilitate the safe wintering of the tree.
Fourth, scraping the old skin: pear bark is a wintering place for a variety of pests and diseases, the main pests in the bark crack winter are: pear care insectivore, pear star caterpillar, pear tart, pear flower net, pear figurine and pear hibiscus Wait. The various pests and diseases that are concealed here are the source of the next year's pests and diseases, and at the same time, due to the lack of lateness of the pear skin, the tree grows thickly. Therefore, in the autumn, the old skin should be scraped off, and the wintering base of pests and diseases should be reduced to lay a good foundation for pest control in the coming year.
5. Qingyuan: After the fallen leaves, it is necessary to clean the leaves of the orchard in time, remove the dead branches, remove the dead fruits, remove the weeds around the orchard, and burn them intensively. For the hanging rope and the top branch rod should be burned in time after use, and the insecticide basket should be sprayed on the fruit basket and fruit box.
6. Plowing and turning: Before the soil is frozen, the whole garden should be deep-turned to a depth of 30 cm or more to mature the soil and promote root growth.
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