Management Techniques for a Jujube Orchard in Late Autumn and Early Winter (Part 2)
The second step is plowing and turning the jujube orchard: in jujube forests where jujube-grain intercropping is practiced, deeply plow the soil between the plants and under the tree canopy; where jujube-grain intercropping is not practiced, plow and turn the entire orchard, and in particular the soil within the projected area under the tree canopy must be deeply plowed. The closer to the trunk, the shallower the plowing should be; the farther from the trunk, the deeper the plowing, generally 15-30 cm is appropriate. This can turn overwintering insect pupae and eggs in the soil up to the surface to freeze to death. This management measure can reduce the damage caused by many pests such as the jujube looper, jujube slug moth, jujube gall midge, weevil, red spider mite, scarab beetle and peach fruit borer.