Never buy or plant Japanese knotweed. The Environment Agency advocate the use of Knotweed Management Plans (KMP) where ever possible on development sites where Japanese knotweed is present. Research is needed to expand available information of the role of Japanese Knotweed in riparian areas, and also how to control the species. We offer a service both commercially and privately that aims to tackle Japanese Knotweed from the root, applying years of expertise and experience in this sector. Knotweed seeds are dark and glossy, and may be dispersed by wind, water, birds and insects. We are Property Care Association accredited and will quickly identify and confirm the extent and type of the infestation at your property so you can obtain the documentation you require to fit your purpose. idverde Management and Treatment of Knotweed. Stems are round, smooth and hollow with reddish-brown blotches. The stems have a fine white coating that rubs off easily. Both knotweeds grow in tall, dense stands that shade out other vegetation. Japanese knotweed is an upright, shrublike, herbaceous perennial that can grow to over 10 feet in height. For knotweeds, the control phase takes at least two seasons, and often includes at least two treatments in year one, followed by at least one treatment in year two. Chemical control plans should always include three phases: 1) control, 2) maintenance, and 3) ecological restoration. Japanese knotweed management - The challenge Put simply, Japanese knotweed knotweed is very difficult to get rid of! Japanese knotweed is an herbaceous perennial that forms large colonies of erect, arching stems (resembling bamboo). Japanese knotweed can tolerate a variety of adverse conditions including full shade, high temperatures, high salinity, and drought. The flowers are arranged in spikes near the end of the stems that are small, numerous and creamy white in color. Bohemian knotweed (figures 4 and 5) is a hybrid of Japanese knotweed and giant knotweed and has Giant knotweed (figure 3) is taller than Japanese knotweed. The scientific names of Polygonum cuspidatum or Reynoutria japonica are also used. “In nearly all cases where a property has a knotweed infestation, a mortgage will only be available if you put in place a professional Knotweed Management Plan provided by an approved contractor – i.e. It starts with a knotweed survey, to establish the extent of the knotweed infestation and gives the Japanese knotweed treatment solutions available to control, monitor and eradicate the knotweed. PHASED APPROACH. They are all glyphosate-based herbicides and will kill the troublesome weed. It has hollow stalks that are persistent through the winter and look similar to bamboo. DO NOT strim, flail or mow Japanese knotweed. The PCA Invasive Weed Group was formed for exactly this reason, to give confidence to homeowners and lenders that when they use a qualified, professional surveyor/contractor they can have confidence that this pernicious weed will not return! Plants reach up to 10’ and the dead stalks remain standing through the winter. Before applying any herbicide product, make sure to thoroughly read and follow the label instructions. ECS’s experienced Japanese Knotweed consultants can provide a personal and practical service throughout the UK, for both residential & commercial clients. We are Invasive Plant Management, industry experts in the delivery of successful, effective solutions for the control and eradication of Japanese Knotweed and other invasive plant species. This project gathers infromation on Japanese knotweed in order to expand available information and understanding. Roundup, Gallup, Landmaster, Pondmaster, Ranger, Rodeo, and Touchdown are all herbicides recommended to kill Japanese Knotweed. Stay on designated trails and keep pets on a leash. Japanese Knotweed Management Company is a subsidary Company of Asbestos Management Company Ltd. Why you need to control your weeds Landowners do not have to control Japanese knotweed and other invasive knotweeds on their land. ... Management Options. However, The Coastal ISC has partnered with other regional weed committees throughout BC to bring you these fun and educational resources to help you defend your property from Knotweed. The effort and the intent behind these two projects put them more in line with gardening than with what is typical for maintaining minimally managed landscapes such as roadsides, bike path corridors, or reservations. Japanese knotweed leaves are generally 4 to 6 inches long by 3 to 4 inches wide, hybrid Bohemian knotweed leaves are 7 to 9 inches long, and giant knotweed leaves often exceed 12 inches across, twice the size of Japanese knotweed leaves. Japanese knotweed for any other plant in PA except for its close kin, giant knotweed (Polygonum sachalinense). The primary rhizome is shown extending A strictly regulatory response to violations is not the most effective way to manage for Japanese knotweed. Do not move soil that may contain knotweed rhizome fragments to uninfested areas. Knotweed Management Plan (KMP) A Knotweed Management Plan provides the options on how we recommend your Japanese knotweed problem is solved. It is found near water sources, in low-lying areas, waste places, and utility rights of way. It poses a significant threat to riparian areas, where it can survive severe floods. Each project is managed by a dedicated member of our Operations Team, who will be on hand to assist with the eradication of your Japanese Knotweed problems & help with any additional information needed. Established in 2014 and based in Coleraine, the Knotweed Management Company provides proven solutions to remove and treat the triple threat of Japanese Knotweed, Himalayan Balsam, and Giant Hogweed. In the UK, Japanese knotweed is a single female clone. Learn more about Japanese knotweed management. The guide to Best Management Practices for Japanese knotweed describes the most effective and environmentally safe control practices for this species. As with all members of this family, the base of the stem above each joint is surrounded by a membranous sheath. The root of the problem - the rhizomatous crown of Japanese knotweed. Herbicides and will kill the troublesome Weed are not effective methods for controlling Japanese! 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