2012年1月9日星期一

Japanese Knotweed - Choosing The Right Treatment Option

Japanese knotweed is an herbaceous perennial Wholesale Women Clothing plant that is extremely invasive. It is listed by the World Conservation Union in the top 100 worst invasive species and that's not surprising when you consider that the root system and rhizomes or underground stems can reach three meters underground and it can damage roads, paving, foundations, retaining walls, buildings, flood defences and gardens.Because of the Flip Cell Phone depth of its roots and its ability to withstand freezing temperatures, it is very difficult to remove by excavation. Applying herbicides can be effective and is the least costly treatment method, but it has restrictions due to timeframe, Laptops and the results are not always certain. To eradicate the weed, it takes at least four spray treatments during its growing season that must be applied at very specific times.The herbicides must be approved by the Department for Environmental, Food and Rural Affairs (DEFRA) and applied in accordance with the legal requirements of the Environmental Protection Act 1990, COSHH Regulations, Wildlife and Countryside Act 1981 and Control of Pesticides Regulations. For this reason, and because it is so difficult to completely get rid of knotweed, it is best to ask a professional weed removal company to do the job. They will know the laws and how to comply with them as well as have high safety standards.Professionals need an intact stem and root system to achieve the right results, so it is best to let the weed grow and not cut, trample or disturb it in any way prior to calling a professional weed removal company.The herbicides used will also kill other weeds and non-target plants, trees and shrubs. The professionals must know which plants need protection because it will determine the type of herbicide they choose. In spite of every care taken, sometimes non-target plants do get damaged.Another way to remove knotweed is to inject the stems with a strong solution of the herbicide. The solution needs to be approximately 10 times stronger than the concentration used for spraying. The solution is injected into the hollow stems. It is good to cut the stems to about eight inches from the ground. The solution can be poured into the hollow stems up to two to three cm deep. After this application there will be re-growth, but this can be handled by spraying.Eradication by physically removing the infected soil is not easy and sometimes underground obstructions such as sewage lines, roots of large trees and groundwater block progress. This is considered a last resort for removing knotweed and should be done by a professional who knows the laws about removal and dumping of knotweed as well as how to take only the infected soil and not the healthy soil.Treatments for removing Japanese knotweed are successful, and it is possible to enjoy a knotweed-free environment.

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