Cutting earlier than this will promote greater seed production from plants that re-grow. enquiries@environment-agency.gov.uk or visit our website www.environment-agency.gov.uk incident hotline 0800 80 70 60 ... Himalayan balsam and water primrose are colourful and attractive, they often become so prolific that they displace native plants. In 2003, the UK Environment Agency estimated that it would cost £300 million to eradicate Himalayan balsam completely (Environment Agency, Correspondence: C A Ellison, CABI, Bakeham Lane, Egham, Surrey TW20 9TY, UK. The Police, Environment Agency and Local Authorities are not obliged to control Himalayan balsam on behalf of a landowner. Non-Chemical Control. The formulation is the safest to use near water and carries no irritant symbol on the can, so is safe to operators, animals and the environment. The formulation is safe to use near water but, as with all aquatic approved products, needs Environment Agency approval prior to application. Donors In 2006 CABI was asked by Environment Agency, Defra and the Scottish Government to find a reliable and effective natural enemy to help control Himalayan balsam. This website and any 0843 telephone numbers therein are operated by e-Call Connect Ltd and is not affiliated with, or operated by, … Environment Agency (EA) - The EA is under no obligation to remove Himalayan Balsam. A lack of natural enemies allows it to successfully compete with native plants for space, light, nutrients and pollinators, reducing biodiversity and contributing to erosion. Landowners and occupiers are responsible for preventing the spread of 5 injurious weeds so they do not cause injury. April and May are regarded as the optimum time to treat Himalayan Balsam. However, it does have some redeeming features and whilst I can understand the reasons for it being much despised I feel somebody has to speak up in support of this controversial but defenceless and, even though invidious of me to say it, invaluable plant! The plants grow densely and stop the growth of other plants and grasses. We are asking local landowners and other inter-ested parties to help us in this task. Himalayan balsam control by Lizzie Wilberforce. Himalayan Balsam (Impatiens Glandulifera) Species Identification Height: A tall, annual herb growing up to 2.5m Stem : Hollow brittle stems which are light green/ red early in the year, turning pink/red in summer. Traditional control methods are inadequate. It grows rapidly and spreads quickly, smothering other vegetation as it goes. Riparian Landowners – have an obligation to control Himalayan Balsam populations on their land and help prevent the spread of the non-native invasive species. The plant poses a big risk to the environment as it can kill other native plants by taking essential nutrients, light and space. 4th Corner follow the strict Guidance Notes for the use of herbicides near water that are published by the Environment Agency. For maximum effectiveness, the measures detailed further down this page should be carried out before June, which is the start of the flowering stage and before the seed pods are visible. We can forward your call to Environment Agency Now (Calls cost 7ppm your network access charge.) An understanding of the wider area is necessary to determine if eradication or control efforts are likely to be successful. What you should know. Himalayan balsam is Britain’s tallest annual plant with each plant tending to be around 1-2 metres high, although they can reach a height of 2.5 metres in some cases! 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