Orangery cleaning: dig out dead trees, disinfect the soil with sunburn, and reduce the source of overwintering insects. Combine winter pruning, cut off pests and diseases, damage branches, dense branches, cross branches and weeping branches; remove fallen leaves, fallen fruits, dead branches, rotten fruits and residual fruits; comprehensively remove orchards and nearby parasitic plants; dig or eradicate Dead trees or trunks damaged by resin diseases, burned intensively, destroying wintering pests and diseases and destroying wintering places. After the pruning is completed, the tree guards will be sprayed in time to control the breeding and spread of the gas-borne virus. The tree body self-defense reaction instinct will be protected, the harmful bacteria will be destroyed, the virus will be eliminated, and the virus replication and transmission path will be closed. Improve the plant's own immunity. Preventing the harm of sub-healthy plants from disasters caused by bad weather (frost, explosion, hail, rain).
The garden soil is lightly turned over: the citrus fruit fly larvae are often smashed in the 3~7 cm soil layer after being matured, loosening the garden soil or planting vegetables in winter and spring, destroying the winter flies or phlegm environment of the fruit flies, combined with deep turning and lime, It can neutralize the acidity and alkalinity of the soil, improve the physical and chemical properties of the soil, and kill some larvae and insects in the soil such as wintering buds and fruit flies.
Restoration of tree potential: In order to restore the tree potential, promote flower bud differentiation, and improve the wintering ability of the plants. After harvesting, each plant should apply 20 kg of decomposed ring fertilizer and dispense 1 kg of special fertilizer. Generally, a circular groove of 20 cm deep and 20-30 cm wide is dug under the canopy drip line, and the fertilizer is evenly applied, and then the soil is covered. Fertilization combined with the use of photosynthetic nutrient film fertilizer can help plants absorb a large amount of light fertilizer, light energy, light, compatible with conventional fertilizers, nutrients to supply plant growth and development to the limit, and benefit from one application.
Removal of pests: After cutting off the pests, use a brush to brush off the wintering red wax mites and other mites on the trunk; remove the wintering pteridophyte, leaf-rolling moth and other insects on the tree. The wounds caused by pruning should be applied to the wounded anti-corrosion film in time, anti-freezing, anti-virus intrusion, anti-corrosion disease transmission, anti-winter pests to inhabit, rain-proof pollution, and prevent large wounds from cracking.
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