Fruit tree management after spring (fruit tree management before winter)

According to Chen, director of Plant Protection Institute of Zhengzhou Fruit Research Institute of China Academy of Agric

Fruit tree management after spring (fruit tree management before winter)

According to Chen, director of Plant Protection Institute of Zhengzhou Fruit Research Institute of China Academy of Agricultural Sciences, it is a good time to scrape off old bark and eliminate pests and diseases in apple orchards after spring and before the fruit trees bloom. Scrape off some rough skin on the tree first, because germs, especially the tumor of ring rot, are still in these rough skin. Scrape off these rough skins thoroughly with a scraper. After scraping, apply 50 times of 50% carbendazim wettable powder to some places where the tumor is concentrated. It's best to collect these rough skins and burn them outside the orchard, because there may be germs in these rough skins, and if they are left in the ground, they will produce new ones.

Another job of apple orchard management in spring is to remove the dead leaves from the orchard. Because there are a lot of germs hidden in the fallen leaves, such as Lepidoptera scarab and red spider. These pests overwinter in fallen leaves. Now, after removal, the insect source can be reduced, and early defoliation diseases such as brown spot and mottled defoliation all overwinter in deciduous leaves. After cleaning up the fallen leaves, you can dig a ditch around the crown and bury it. After burying, you can chase some human excrement or urea for 30 times, and then cover it with soil, which can accelerate the decomposition of fallen leaves.

During the period from scraping the bark to the germination and whitening of flower buds, that is, from March 20 to 25, the whole orchard should be sprayed with organic fungicides, using 50% carbendazim 100 times solution or 5% bacterial toxin 50 times solution, mainly to eradicate ring rot, dry rot and rot. In addition, for orchards with moldy heart disease, spray 500 times of Apple Yiwei when inflorescence turns red, spray 0.5% borax at flowering stage, and spray Apple Yiwei again.

The key to the benefit of fruit trees lies in management, because only with good management can the output of orchards be improved and the quality of fruits be improved. This requires the majority of fruit farmers to carefully manage fruit trees according to the characteristics of fruit trees in different periods.