Himalayan balsam is a fairly common and widespread weed nowadays! The following herbicide approaches can be taken throughout The seeds are highly viable and germinate early in the growing season. Small infestations of Himalayan balsam can be controlled by hand-pulling the whole plant, including roots, in April and any new growth in September; or by regular grazing, strimming or the application of herbicides. Fax: 01580 212513. The dangers of Knotweed . Chemical control - you must only spray during the growing season when there is green leafy material present and most of … - Wide spectrum of weeds controlled - especially tough and invasive weeds. It should also be noted that mesotrione reduced the Himalayan balsam weed population by 50% (Figure 6 – overleaf), when applied pre-harvest at bud break. Each plant has the ability to spread over 7 metres every season, making it difficult to eradicate without a coordinated approach, particularly around rivers and water courses. It is the tallest annual plant found in the British Isles, growing to more than 2-3 metres in height. Residual Herbicides; Total Herbicides; Hard Surfaces; Moss Control; Railway Lines; Scrub Clearance; Invaisive. If the Himalayan Balsam is near a water-course the use of chemical control may be impossible. Himalayan balsam can stand low light levels and it also creates shade over other plants, so gradually destroying habitats by killing off other vegetation that is in its way. - Virtually no odour. Himalayan balsam will be listed on the revised Schedule 9 of the Wildlife (Northern Ireland) Order 1985 and therefore it will be an offence to plant or cause it to grow in the wild, upon its inclusion. Herbicide use should only be considered if manual control techniques are not possible. 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. Management of invasive weeds in or close to water and other vegetation. Where Himalayan balsam is a problem, metribuzin now has an approval to help growers control the weed in new plantations. - Very low amounts of active ingredient but still effective. Japanese Knotweed is one of the most common and problematic invasive weeds in the UK today due to its resilience, rapid growth rate and difficulty to fully remove. Chemical:9 Glyphosate and 2,4-D Amine has been effective on young plants.4 Sprayed flow-ering plants are still able to produce viable seed.2 7 Herbicide use in riparian areas is restricted to Poorly targeted herbicide application can also worsen the problem by creating areas of bare ground. Stamford RiverCare has been waging war on Himalayan Balsam (Impatiens glandulifer), an invasive plant species found on the banks of the River Welland in Stamford. If you've ever wandered along a riverbank, pond or lake, we guarantee you will have seen it at least once! Grazing and trampling by cattle and sheep. First introduced to the UK in 1839, its rapid growth and attractive flower made it a favourite with gardeners and the seeds were happily shared and traded. 1.11 Alternatively, herbicide spot spraying treatment of all Himalayan balsam can be carried out during May of each year, again before plants seed. Destroying footpaths across Britain and frustrating gardeners – probably the plant species which causes the most damage to infrastructure and gardens (Mares Tail). Himalayan balsam plants are easily hand pulled due to the shallow root system. Where Himalayan Balsam is present, excavation, ditch digging and ploughing should be avoided. Himalayan Balsam has been added to Schedule 9 by The Wildlife and Countryside Act 1981 (Variation of Schedule 9) (England and Wales) Order 2010: this means that it is illegal to plant or otherwise cause to grow Himalayan Balsam in the wild. Himalayan Balsam. Herbicides. Control of invasive non-native species - Himalayan balsam Eradication may be possible in two to three years unless your site is being colonised by seeds from further upstream. Knotweed, Himalayan Balsam, Giant Hogweed and Skunk Cabbage TECHNICAL NOTE TN697 July 2018 • ELEC Summary • It is important to be able to identify invasive species that occur within the local area. However it may be easier to leave them until the end of June, start of July, when the plants have flowered, as they will be easier to spot. For large, riverside infestations, a specialist invasive species control company should be consulted. Horsetail. Himalayan Knotweed. Like other balsam flowers, the plant reproduces by seed, and it will put out up to 800 of them every year.These seeds can travel a short distance through the air or miles and miles if they get caught up in a river or stream. Investigation into spraying herbicide proved too costly for the type of land and distribution of Himalayan balsam. - Soluble concentrate selective herbicide for the control of weeds (such as Japanese knotweed, Himalayan balsam, buddleia and bramble) in non-crop situations. Using herbicides is an extremely effective method to control Himalayan balsam. Himalayan balsam is a tall-growing annual and it produces clusters of purplish-pink flowers. It’s important to time your Himalayan balsam control so you don’t inadvertently spread more seeds. When touched, the seed pods shoot the seeds far afield. Himalayan balsam (Impatiens glandulifera) is an invasive terrestrial plant species that was first introduced as an ornamental garden plant and is spread exclusively by seed.Since it was introduced, it has spread to most parts of Ireland. Himalayan balsam likes wet soil and riparian (along streams) areas. Tel: 01580 212519 . Plants produce around 700 to 800 seeds, which can survive in water for two years. Extreme care is needed to ensure all seed pods are disposed of in your domestic rubbish and not composted. Although very attractive in appearance, Himalayan Balsam is a pest and one of the most rapidly spreading Invasive weeds in the UK. This is usually around June. Manual – As Himalayan balsam is a shallow rooted plant it can be easily uprooted by hand. The use of herbi-cides in aquatic environments requires Alberta-specif-ic applicator certification and permits. - Himalayan balsam has a high sap/water content and so when cutting protective clothing is advised in case your skin is sensitive to the sap. This herbicide prevents new Himalayan Balsam from growing, however it is an expert herbicide, and can only be applied to your Himalayan Balsam by a trained, experienced expert. Herbicide treatment for Himalayan balsam is most effective in the spring, before flowering (April – mid June). Himalayan balsam, it is a good idea to establish a new grass sward immediately after the first cut/hand-pull of balsam and then keep the grass mown for 2/3 years until all remaining balsam seeds have germinated. Manual control . Leaf: Finely serrated slender to elliptical leaves, often with a reddish mid-rib. The herbicide used depends largely on the local environment and the timescale required removing the weed. Himalayan Balsam Solutions. The flowers are followed by growing seed pods that open explosively when they are ripe. Japanese Knotweed identification. Himalayan balsam; Rhododendron ponticum; New Zealand pigmyweed (this is banned from sale) You do not have to remove these plants or control them on your land. Himalayan Balsam. Himalayan Balsam. Leatherjackets; Chafer Grubs; Brown Tail Moth; Vine Weevils; Head Office. It is the tallest annual plant (completes its life cycle in one year) in Ireland growing up to 3m high. Chemical: Currently no selective herbicides are reg-istered for use on Himalayan Balsam. Spraying – Using herbicides is an extremely effective method to control Himalayan balsam. Control of Himalayan Balsam should ideally happen when the plants have grown to a good height, but have not yet flowered. As well as harming the environment, Japanese Knotweed is able to grow through the smallest gaps in walls, … Plant debris should be incinerated or bagged and sent to the landfill. The herbicide used depends largely on the local environment and the timescale required removing the weed. - High levels of grass safety. It might look pretty, but it really is a nasty piece of work, as it outcompetes native plant species. Japanese Knotweed; Giant Hogweed; Ragwort; Himalayan Balsam; Buddleia; Insects. Chemical Control: Herbicide treatments can work well for large populations of Giant Hogweed. Himalayan balsam is an annual plant that grows from the previous year’s seeds. Results. The species is particularly frequent along the banks of watercourses, where it often forms continuous stands. Himalayan Balsam; Bamboo; Contact; Japanese Knotweed. 5. Himalayan Balsam colonises areas rapidly and quickly outcompetes the surrounding vegetation and reduces diversity. Because Himalayan balsam is often found near water, herbicide control can be difficult. Weed Management Marshalls Barn Jarmons Lane Collier Street Kent TN12 9PU. The seedpods open in such a way that the seeds are thrown several metres away from the parent plant, helping the species to rapidly spread – often quoted as 20 metres in all directions per season. • Be aware of where these species occur and their harmful effects. Himalayan Balsam is an invasive plant with easily identifiable pink or white heart-shaped flowers, that was introduced to the UK in 1839. The blooms attract bees and other pollinators away from native species. Invasive Species Guide: Himalayan Balsam 4 | P a g e Invasive Species Guide: Giant Hogweed Photos are sourced from GBNNSS, Tom Richards and RPS group Plc. It blooms from July to frost. Spraying: glyphosate based herbicides work effectively on Himalayan balsam. The Till subcatchment has been treated since 2005, using a mixture of hand-pulling and spraying. Control efforts aim to prevent the plant from flowering and setting seed, as the seeds are explosive and can spread viable seed over large areas. 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