Japan

แสดงบทความที่มีป้ายกำกับ knotweed แสดงบทความทั้งหมด
แสดงบทความที่มีป้ายกำกับ knotweed แสดงบทความทั้งหมด

วันจันทร์ที่ 28 กรกฎาคม พ.ศ. 2551

Japanese knotweed removal

Japanese knotweed removal

Development and construction industries face a huge problem with the Japanese knotweed invasion. Eradication is such a large issue and, also, it is one where relatively little is known by many so-called experts; the advice given for Japanese knotweed removal can be confusing. However, the problem of Japanese weed removal is a clear one.

It is now thought that Japanese knotweed affects an area roughly the size of London. DEFRA has placed a conservative total cost of Japanese knotweed removal at £1.56bn. The Victorians obviously admired its imposing height and soft, green, smooth, heart-shaped leaves, purple streaked bamboo-like stems and small, white flowers in late summer. Little did they know how destructive the invasive weed would become.

For now developers must be ruing the day that the Victorian botanical enthusiasts introduced the knotweed, an invasive weed, as an ornamental plant. As a hardy fast-growing invasive plant, the weed enjoys the climate and conditions in the UK as easily as its original habitats in Japan and China. Consequently, this means that in the UK Japanese knotweed can completely swamp native vegetation. It grows voraciously in harsh, disturbed conditions, and can regenerate from very small amounts of growth.

This makes Japanese knotweed removal very difficult and its spread can be rapid. The very real problem with it is the impact it has on buildings. They can easily damage drains, walls, and can even grow through concrete floors; thus meaning the removal of the knotweed is essential before development begins.

In the process of Japanese knotweed eradication it is important to take account of applicable legislation and relevant guidance. The main UK legislation for eradication of this weed to be aware of includes:
The Wildlife and Countryside Act 1981, makes it an offense to spread Japanese knotweed in the wild.
The Environmental protection act 1990, and Duty of care regulations, 1991, make any Japanese knotweed contaminated soil controlled waste.
Third party litigation is also important, where you can be sued for costs and damages if you allow Japanese knotweed to spread from your property.

The Environment Agency also provides useful advice on Japanese knotweed removal in their code of practice. But advice from the Environment Agency is fairly general; they state that during the removal of the invasive weed, the soil around it should be excavated to a 3 metre depth and 7 metre radius. The result of this would be too large an amount of knotweed waste to be handled cost effectively. However, using expert’s advice and professional experience, Japanese knotweed removal services can deal with the infested material and take a much smaller amount of soil offsite, resulting in huge cost savings.

Paul, is the director of the Phlorum. An environmental agency specialised in Japanese Knotweed Removal and Japanese Knotweed Eradication in the UK. A great way for Japanese Knotweed Control.

Article Source: http://www.ArticleBiz.com

Japanese knotweed eradication continues

Japanese knotweed eradication continues

Japanese knotweed is continuing to spread throughout the United Kingdom. Although attempts at Japanese knotweed eradication are quite intensive, weed control is still needed as the knotweed remains a significant problem.

The Victorians saw the first introduction of Japanese knotweed. Control of the invasive weed at that time was not considered necessary. However, after many years of freedom Japanese knotweed removal has become essential. As Japanese knotweed thrives away from its original habitat of volcanic and other harsh conditions, the United Kingdom has a perfect climate; consequently, the control of the plant is becoming more and more important. Japanese knotweed eradication is particularly difficult as the nature of the plant means that it grows quickly and weed control is necessary to stop regeneration as the roots will spread quickly; up to three to four inches a day.

Japanese knotweed removal is essential because the plant is very threatening as it can grow through parts of buildings, damaging foundations, drains, and even walls. Also, without effective Japanese knotweed eradication, the rhizomes (roots) of the Japanese plant can still continue to grow underground and appear elsewhere. Japanese knotweed removal does not always solve the problem. Weed control is also needed even after a site has been treated to maintain a Japanese knotweed free area.

Japanese knotweed spreads entirely by vegetative means. They reproduce through small pieces of stem and root cuttings. Therefore spreading the rhizomes on sites will exacerbate the Japanese knotweed problem, causing the need for further eradication.

As Japanese knotweed is such a virulently invasive plant, knotweed control needs to be applied to more than just the ability for it to spread from small pieces of root material. The plant typically springs up in April, when it begins its determined growth in all directions. Thousands of pounds can be added to site costs for Japanese knotweed eradication, it can grow anywhere on all sites across the United Kingdom. Its original habitat is harsh and the climate in the United Kingdom encourages its development, often enveloping our native vegetation. Leaving the problem of even a small amount of Japanese knotweed unchecked is a mistake as its fast growth and high voracity means it will grow to form a new plant from just a fragment of root. Therefore Japanese knotweed is becoming more and more common on sites that are disturbed by human activity including, in particular, many areas where development has been planned.

Paul, is the director of the Phlorum. An environmental agency specialised in Japanese Knotweed Removal and Japanese Knotweed Eradication in the UK. A great way for Japanese Knotweed Control.

Article Source: http://www.ArticleBiz.com