Composite chemical for preventing and treating bark rot of tree

Abstract

A composite chemical for preventing and treating bark rot of tree is composed of chemical A for coating it on the bark of tree and chemical B for burying it in soil around the tree root. The said chemical A is prepared from oriental wormwood 15-25 wt%, platycodon root 20-25 wt% and stemona root 50-65 wt.% through proportioal decocting. The said chemical B is prepared from 9 Chinese-medicinal materials including mint 5-15 wt%, liquorice root 5-25 wt%, ledebouriella root 0-10%, etc. through crushing, parching and mixing. Its advantages are high effect and no environmental pollution.

Description

Technical field: [0001] The present invention relates to a comprehensive agent for preventing and treating tree rot, in particular to a combination of two medicaments which are directly sprayed on the diseased part of the tree and buried in the soil around the roots to treat tree rot. Comprehensive medicine. Background technique: [0002] In recent years, due to changes in climatic conditions and ecological environment, a large area of ​​rotten skin disease (scientific name: dirty black rotten skin) broke out in willows, poplars, and fruit trees in the Northeast. Rarely, under normal circumstances, the bacteria that cause skin rot are weak parasitic bacteria, which can only infect plants with poor growth and weak tree vigor, and are not easy to cause complete death of plants, but the plants lack good maintenance for a long time or due to Changes in objective conditions such as climate, soil, hydrology, and air pollution exceed a certain critical value, leading to the disord...

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to changes in climatic conditions and ecological environment, a large area of ​​rotten skin disease (scientific name: dirty black rotten skin) broke out in willows, poplars, and fruit trees in the Northeast. Rarely, under normal circumstances, the bacteria that cause skin rot are weak parasitic bacteria, which can only infect plants with poor growth and weak tree vigor, and are not easy to cause complete death of plants, but the plants lack good maintenance for a long time or due to Changes in objective conditions such as climate, soil, hydrology, and air pollution exceed a certain critical value, leading to the disorder of the tree's immune system itself, which can induce abnormal outbreaks of various diseases. According to traditional techniques such as Chinese garden plant protection (Xia Baochi, Shen Baiyan) Edited, Jiangsu Science and Technology Publishing House, August 1992, pages 485-486) ​​pointed out in the book that the method of preventing and treating poplar (willow, pagoda tree) rotten skin disease, in addition to selecting disease-resistant varieties, improving disease resistance and preventive ability In addition to non-active methods such as non-active methods, the main treatment drugs are body surface agents such as Bordeaux serum, chlorothalonil, carbendazim, thiram, thiophanate-methyl mercury, tuzet, etc. The long-term use of these drugs makes the drug effect gradually It tends to become smaller, and causes the killing of natural enemies, causing pests to develop resistance, and causing diseases to become more rampant. New types of diseases continue to appear, and various types of plant diseases and insect pests are facing more and more frequent and serious outbreaks. Negative effects such as diseases and insect pests are still hard to prevent