How to control the shell insect of plum tree?
How to control the shell insect of plum tree? Please introduce the plum tree shell insect control methods: 1. Do a good job of winter pruning and garden cleaning to reduce the insect population density in the following year, and spray 5-degree stone sulfur mixture before budding. 2. Trunk smearing prevention and cure: the washing powder sold in ① market is 5 times as liquid and smeared evenly on the killed tree trunk. 5 parts of kerosene, 1 part of washing powder and 6 parts of water sold in ② were evenly smeared on the injured tree trunk. 5 parts of crude diesel oil and 1 part of washing powder and 6 parts of washing powder sold in ③ were evenly smeared on the trunk of the killed tree, and the control effect was very good. 3. Chemical control: choose the insecticides to kill scale insects and control the hatching period of the first generation of young scale insects in time (generally in the flowering stage of Sophora japonica in Beijing). Choose 40% speed scale or speed culling 1200 times liquid. 4. Biological control: do not spray chemical pesticides, protect natural enemies, such as black edge red ladybug, red lip ladybug, etc., to control the occurrence of pests. Click to get more plum tree planting techniques click to get more fruit planting techniques
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How to plant plum trees in greenhouse?
How to plant plum trees in greenhouse? How to manage planting plum trees in greenhouse? Please give guidance for greenhouse planting plum trees can be managed with reference to the following methods: first, greenhouse construction and production procedures greenhouse selection of ordinary winter warm vegetable greenhouse reconstruction, varieties for 3-year-old early beauty plum and Molteni plum, row spacing.
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How to apply the base fertilizer of plum tree?
How to apply the base fertilizer of plum tree? When is the best time to apply base fertilizer to plum trees? At present, the organic matter of most plum orchards is less than 1%, and some plum orchards are even less than 0.5%, which is far below the requirements of high-quality and high-yield orchards, so it is necessary to increase the amount of base fertilizer. If we consider both the growth of trees and the improvement of soil.
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