As the weather gets warmer and the temperature rises, the sap flow of the fruit trees is accelerated, and the rot disease pods will expand and accelerate. The powdery mildew and rust disease will be noticeable, and a large number of overwintering pests will continue to develop. In particular, nutrients consumed by fruit trees during the flowering period mainly utilize the tree's previous reserves. In order to reduce the consumption, the fruit grower should perform detailed pre-flower cutting. Cut before flowering Flowers are different There is a lot of work before cutting flowers. First say wipe buds. Wiping up buds means that germination that does not require twigs on the backs, cutting kerfs, etc. is eliminated, and the ineffective consumption of tree nutrients is reduced. After sprouting of flower buds, the fruit grower will be able to look for the flower buds as soon as possible, remove the redundant weak fruit branches on the tree body in time, shrink and cut the slender bunches of flowers, and eliminate some of the long fruit buds, and keep the ratio of flower buds to leaf buds 1:4-5. The appropriate ratio. For branches that show symptoms such as leaflets after freezing germination this winter, retraction is also required. In a tree with a small amount of flowers, the fruit grower should lightly cut a small part of the front end that has germinated in the branch of Wangzhi where it is in a dominant position of production. For varieties with high sprouting force and low branching force, in order to promote long branches and cultivate fruiting branches, the fruit grower should appropriately shorten and suppress the top side. In addition, fruit growers must also spend their time sparsely. Leave a bud of 15 cm to maintain a healthy inflorescence, inflorescence separation period before flowering to retain the center of the flower and 1 to 2 development of good lateral flowers, the excess side flowers and alfalfa inflorescence all thin. Flowering management Irrigation with white bee To cope with climate change, fruit growers can adopt measures such as watering the trees in advance, whitening the trunks, spraying 1% lime water on the canopy, and covering the organic matter on the tree trays to delay the flowering period of the fruit trees and avoid the night frost. If you want to prevent late frost. According to the local weather forecast, the fruit growers can burn leaves, firewood, wheat stubble, etc. around the orchard around 12 o'clock on the night of cooling, and increase the temperature and defrost frost protection. When frost is forecasted, the fruit grower should suspend the inflorescences, spray and protect the polypeptide protein solution, and interval 7-10 days. Spraying twice can significantly reduce the freezing injury and increase the fruit setting rate. The flowering period is to release the labial bee, the horned wall bee, and the bees. The use of insects for pollination and insemination is worth promoting. Before blossoming, a box of bees can be placed in each mu of orchard. For example, horned wall bees have good cold resistance, lower activity temperature than bees, and strong ability to pollinate flowers. The number of daily visits per wall bee can reach more than 4,000, and the amount of bees per acre can be about 300. Of course, fruit growers can also adopt artificial pollination. In addition, in the flowering period, fruit growers can also spray 1-2 times of 0.3% borax as needed, which is good for improving fruit setting. After the flowering season is slightly frozen, it can be sprayed with esculin, Tianda 2116, and Bijing in time; and individual Wangwang, Wangzhi, and circumcising at the early flowering stage can also increase the fruit setting rate. Pest control SaviNET The diseases that Apple needs to prevent and control mainly include fungal heart disease, powdery mildew, rust, brown spot, anthrax, ring rot, spotted deciduous disease, etc. The insect pests mainly include leaf roller moth, leaf leaf moth, aphids, leafhoppers, and Pterodontis. Fruit farmers can trap insects such as chafers by hanging insect traps or sweet and sour liquids. Pest pheromone traps and traps should be promptly inspected and replace vulnerable materials if necessary. When there are few chafers in the flowering period, it can be manually captured. To prevent diseases, the fruit grower should promptly cure and treat rot lesions, apply corrugated spirits, and use enemy rot to spray and rot the damaged parts to promote the healing of rot parts and promote nutrient delivery. After falling, the whole park can spray 2% of Ningnanmycin 600 times + 2.5% Lambda-cyhalothrin 1000 times or 70% Imidacloprid 4,000 times + Polypeptide protein liquid 400 times to control powdery mildew, mold heart disease, rust , brown spot, anthracnose, ring rot, spotted deciduous disease, leaf roller moth, leaf leaf moth, aphid, etc. Orchard lines between grass and tree cover are also a good choice. The fruit growers can plant green manures in shallow groves between trees, dry land with red clover (stronger cold resistance), and irrigated land with white clover, American ryegrass, and rat grass. The best combination of clover and grass greens Species. At the same time, the tree tray covers straw organics or black non-woven fabrics. 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In May, Apple managed more tricks without chaos
Last year, the price of apples was unsatisfactory, and the enthusiasm of the farmers was reduced. Coupled with the cold weather, the fruit trees in some places were frozen in winter... This situation made many farmers unable to work on this year's Apple management. However, in May, it was a crucial period for management. Xu Mingju, an expert member of the fruit innovation team of Shandong Province, head of the fruit and vegetable video network, and a senior agronomist of the Fei County Fruit Industry Administration, believes that the more the fruit growers should take decisive measures, the more , The next effort to follow-up follow-up management, one can take the opportunity to update the old orchard. In terms of management contents, in April and May, fruit growers should pay attention to cutting flowers before flowering, freezing during flowering, promoting fruit setting, reasonable fruit keeping, and pest control.