Zaoyuan winter ploughing, especially the soil within the projection area under the canopy must be deep ploughed. The closer to the trunk, the shallower the ploughing, and the further away from the trunk, the deeper the ploughing, generally 15-30 cm is appropriate. In this way, the overwintering maggots and eggs in the soil can be turned out and frozen to death. This management measure can reduce the harm of various pests, such as jujube ruler, jujube spine moth, jujube mosquito, elephant beetle, red spider, scarab and peach heartworm. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone Microscope Camera and Scopepad Microscope Camera And Scopepad,Industrial Camera,Industry Digital Microscope Camera,Usb Microscope Electronic Eyepiece NINGBO VANCO INSTRUMENT CO.,LTD , https://www.vancoscope.com