It contains 61.6% of triclopyr more than 60.45% of Remedy Ultra(gallon), Garlon 4 Ultra(2.5 gallon). Also effective as a late-season application. FREE Shipping. Add Garlon XRT Herbicide to the required amount of oil in the mixing tank and mix thoroughly. Where you find a competitor's lower price on the same stocked item, we'll beat it by 10 %. Description. + Update your shipping location 7 S 0 P O N S O A R P A 7 E E D-1-1 U J-1 0 F J-1-1. NEW Garlon XRT is the next generation of Garlon. Please ensure you check your items upon delivery. Availability: In stock The industry standard for basal cut-stump, basal bark and dormant stem treatments, delivering excellent broad-spectrum control of woody plants even after other products call it quits for the season. 3.3 out of 5 stars 8. Garlon Ultra is subject to stewardship requirements which will be discussed prior to sale. Consult the label before purchase or use for full details. State restrictions on the sale and use of Garlon 4 Ultra, Garlon XRT and Milestone apply. Active Ingredients: Aminopyralid, Triclopyr. She has degrees from University of North Florida, University of Florida and Florida State University. Kills a broad spectrum of weeds including Japanese knotweed, Always read the label and all enclosed information for, Berthoud Vermorel Sprayer 2000 Pro Comfort. Only 16 left in stock - order soon. Please Note: A typical timeline for a refund to show in your account is up to 10 working days from the date processed, depending on your bank. Garlon 4 Ultra Triclopyr Herbicide contains the active ingredient 60.5% Triclopyr to destroy box elder, buckthorn, locust, and sumac - plus annual and perennial broadleaf weeds in non-crop areas. Garlon ® Ultra is a soluble concentrate containing aminopyralid (present as 23.08 g/litre aminopyralid trisopropanolammonium salt) + 120 g ae/litre triclopyr (present as 167.36 g/litre triclopyr triethylammonium). Garlon 3A quantity. It is designed for selective, direct stem application to woody species. Garlo n Ultr a (PCS No 04473) is a spot treatment used to control a wide range of perennial, herbaceous and wood weeds on amenity grassland. Garlon XRT Herbicides offer flexibility and can be used for site prep, mid-rotation release, forest roadside brush removal and establishment of wildlife openings. Garlon Ultra is highly effective on Japanese knotweed which is known for its damaging effects on concrete. Triclopyr 4 Herbicide - 1 Gallon (Replaces Remedy Ultra and How do I begin the returns process? The advanced, patented formulation also helps Garlon 600 Herbicide contains the active ingredient Triclopyr, which has activity on a wide range of broadleaf weeds. Do not use on grass less than one year old. All rights reserved. Dilution Rate: 200ml in 10 litres of water. 4. All returns must be packaged appropriately for shipping, we will not accept responsibility for damages or loss which occur during shipping of a return product. For other quantity options or questions, please contact your local Red River Specialties Sales Rep or email info@rrsi.com. jug. Save garlon 4 to get e-mail alerts and updates on your eBay Feed. Also effective as a late-season application. Also effective as a late-season application. Alligare Triclopyr 4 Herbicide Remedy Garlon - 1 - 2.5 Gallon is generic remedy ultra herbicie, garlon 4 ultra herbicide that is the most economical way to reclaim your pasture from brush encroachment and improve grass productivity. Triclopyr 4 Herbicide is the same as Garlon 4 Herbicide and is designed to control mesquite, sumac, tallow, poison oak, cactus, and other heavy brush. State restrictions on the sale and use of Garlon 4 Ultra, Milestone and Opensight apply. Instead, a methylated seed oil is used as the solvent. Product Name: GARLON (TM) 4 Herbicide Issue Date: 09/28/2012 Component List Type Value Triclopyr-2-butoxyethyl ester Dow IHG TWA 2 mg/m3 D-SEN Kerosine (petroleum); Straight run kerosine D o w IHG T W A as total h yd ro c a rbon v a p or 10 m g /m 3 SK IN A C G IH T W A Non - … Do not spray in drought, hot or very cold weather conditions. Garlon Webb is the owner/broker of Real Estate with Garlon Webb. + Update your shipping location 7 S 0 P O N S O A R P A 7 E E D-1-1 U J-1 0 F J-1-1. We’re sorry your purchase didn’t work out. Made by Dow AgroSciences, this product keeps right-of-ways, roadsides and other noncrop sites clear of unwanted weeds. Buy and sell farm supplies quickly and easily on Farm Tender, Australia's premier agricultural market place. Please hold off on returning products until a member of our team has called you to confirm. It is registered for the control of woody weeds and … than Garlon 3A, are packaged in small quantities (quart containers), and can be purchased at retail garden supplies. Here at Agridirect we have joined forces with DPD to ensure all packages are delivered promptly and safely to you. Garlon 3A Label Garlon 3A SDS . State restrictions on the sale and use of Garlon 4 Ultra, Milestone and Opensight apply. Garlon Ultra is highly effective on Japanese knotweed which is known for its damaging effects on concrete. Garlon 3A $ 289.93. BrushTox Brush Killer with Triclopyr, 32 oz. It can also be used basal treatment to kill large trees. Active ingredient is 44.4% triclopyr triethylamine salt. Add to cart. Apply to actively growing weeds between March and the end of October. Excludes trade quotes, stock liquidations, commercial quantities and MarketLink products. 5.0 out of 5 stars 2. Comes in 2.5-gal. Garlon™ RTU formulated to be used right out of the container, no mixing is required. Triclopyr belongs to the Pyridines chemical group. Use Brushtox with Triclopyr to control broadleaf weeds, brush and woody plants on rangeland and permanent grass pastures. If lower rates are used on hard-to-control species, resprouting may occur and retreatment may be necessary the following year. All returns must be the complete product which includes boxes, manuals and accessories that may have been include with the order. Made by Dow AgroSciences, this product keeps right-of-ways, roadsides and other noncrop sites clear of unwanted weeds. A vegetation manager plans treatments with Garlon 4 herbicide and oversees crew activities. Quick overview Garlon 4 Ultra Herbicide is the liquid ester formulation for foliar and basal bark applications, and is effective on actively growing brush by penetrating the bark and entering the cambium layer. But don’t worry; we have a great returns policy to help you out. Garlon Ultra contains 12g/l aminopyralid (present as 23.08 g/l aminopyralid triispropanolammonium salt) and 120 g/l triclopyr (present as 167.36 g/l Triclopyr triethylammonium). Group. Find many great new & used options and get the best deals for Dow Garlon 600 5L Herbicide at the best online prices at ebay! Because of this improved control, crews and heavy machinery visit a right-of-way less frequently, thus, less impact on property near yours. Active ingredient is 60.45% triclopyr butoxyethyl ester. Garlon 4 Ultra Triclopyr Herbicide contains the active ingredient 60.5% Triclopyr to destroy box elder, buckthorn, locust, and sumac - plus annual and perennial broadleaf weeds in non-crop areas. Garlon XRT offers the same excellent performance you have come to trust with the Garlon brand, but in a new and improved formulation that is 1/3 higher concentrated for your convenience and ease of use. Triclopyr 4 EC Compare to Garlon 4 and Remedy 1 Gallon. due to regulations you will be required to provide a valid herd, flock or PU number when purchasing this Item. Garlon 4 is the liquid ester formulation for foliar and basal bark applications, and is effective on actively growing brush by penetrating the bark and entering the cambium layer. Garlon XRT Herbicide for the control of undesirable woody plants and annual and perennial broadleaved weeds on pastures and rangelands, in non-crop areas such as rights-of-way, military bases and industrial sites, and in forest and woodland management areas. Consult the label before purchase or use for full details. Garlon 4 Ultra Triclopyr herbicide for fence rows and more 787593. Purchases may be opened for inspection but must not be used and must be repackaged securely in the original packaging if you wish to return it. A selection of the products we sell are only licensed for sale within the Republic Of Ireland and can not be shipped outside of the country. She has deep roots in Northeast Florida and is knowledgeable of the area. By continuing to use the site you agree to our use of cookies. Triclopyr 4 Herbicide - 1 Gallon (Replaces Remedy Ultra and Garlon 4 Herbicide) Same active ingredient as Remedy Ultra and Garlon 4. 60% Triclopyr (Remedy Ultra & Garlon 4 are 61% Triclopyr). Vastlan is not registered for sale or use in all states. 2.5 gallons. All purchases can be returned to us within 14 days of delivery and returned goods must be received within 14 days from the date you informed us of the return. Any electrical products that are plugged in are deemed ‘as used and accepted’ and are not accepted as returns. Garlon 4 controls unwanted brush and eliminates resprouting. Save garlon to get e-mail alerts and updates on your eBay Feed. Garlon Webb is the owner/broker of Real Estate with Garlon Webb. All damages must be reported to us via phone or email within 24hours of receipt of goods. Please note - due to regulations you will be required to provide a valid herd, flock or PU number when purchasing this Item. This site uses cookies in order to provide you with the best possible user experience. S = Susceptible  |  MS = Moderately Susceptible  |  MR = Moderately Resistant   | R = Resistant. We ship to all mainland countries within the EU. Garlon XRT Herbicides offers flexibility and can be used for site prep, mid-rotation release, forest roadside brush removal and establishment of wildlife openings. Superior woody plant and broadleaf weed control while maintaining the integrity of roadsides or rights-of-way. Garlon 4 Ultra Herbicide is the industry standard for herbicide control. If we discover goods have been used or there has been a loss in value of the goods due to damage to the goods, while in your care or whilst being returned to us, we will reduce the amount refunded, which may amount to the full cost of the product, to cover loss of value of goods. Garlon Ultra is not safe on clover. Garlon 3A is the liquid amine formulation for foliar, cut surface and tree injection applications. + Update your shipping location 7 S 0 P O N S O A R P A 7 E E D-1-1 U J-1 0 F J-1-1. Garlo n Ultr a (PCS No 04473) is a spot treatment used to control a wide range of perennial, herbaceous and wood weeds on amenity grassland. Quick overview Garlon 3A Herbicide is the liquid ester formulation for foliar and basal bark applications, and is effective on actively growing brush by penetrating the bark and entering the cambium layer. There may be an addition charge on certain bulky items. For selective control of woody plants, Garlon XRT Herbicide can be used in oil mixtures and applied using the streamline or stump treatment technique. Garlon Ultra (PCS No 04473) is a spot treatment used to control a wide range of perennial, herbaceous and wood weeds on amenity grassland. Always read the label and all enclosed information for Garlon ultra Before use! Garlon 600 is classified as a Group I Herbicide, with a mode of action where the weed cannot grow due to disruption of plant cell growth. It is designed for selective, direct stem application to woody species. It is registered for the control of woody weeds and … For the control of a wide range of deep-rooted perennial, herbaceous weeds and woody weeds on amenity grassland to include non-crop land such as motorways and railway … Coverage Per Bottle: 4 litres will treat one hectare. jug. Once you have sent us all required information a member of our team will assess your claim and will contact you as soon as possible. Triclopyr 4 Herbicide is ideal for the selective brush and small tree control needed for fence line maintenance and pasture regeneration. Some product have an extended delivery time, this is noted on the products. Garlon Ultra is highly effective on Japanese knotweed which is known for its damaging effects on concrete. Avoid applications in hot temperatures. Deliveries take place Monday to Friday excluding bank holidays. 2-1/2 Gallon Jug. She has degrees from University of North Florida, University of Florida and Florida State University. Why pay more? garlon* 480 ec L4916 ACT 36/1947/ HERBICIDE GROUP CODE O A systemic emulsifiable concentrate herbicide for the control of woody plants and weeds as listed for forestry, grass pastures and industrial areas and sugarcane. Also effective as a late-season application. Vastlan is not registered for sale or use in all states. Garlon 4 Ultra Herbicide is the industry standard for herbicide control. Active Ingredients: Triclopyr Butoxyethyl ester 61.6% Foruulation Type: Ester Herbicide Mode of Action: 4 $262.37 $ 262. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Who will be applying Garlon® 4 herbicide? Avoid applying to plants under stress. If you wish to begin the return process, please email us at sales@agridirect.ie and ensure the following information is included in your email. Garlon 600 Herbicide contains the active ingredient Triclopyr, which has activity on a wide range of broadleaf weeds. Before using Garlon™ 600 in tank mixes with other herbicides, check the plant-back information on all product labels. The cost of the return, including all packaging and freight, lies solely with the consumer. Use higher rates when hard-to-control species such as ash, chokecherry, elm, maple (other than vine or big leaf), oaks or pine are present. This charge will be clearly marked on an applicable products and will be explained on the checkout page before payment has been made. See active ingredients, product application, restrictions, and more. Please note - due to regulations you will be required to provide a valid herd, flock or PU number when purchasing this Item. If temperatures reach 82 F or 28 C or higher, cease applications for the day. Cutting: Lawn can be mowed 7 days after application. Lawn can be mowed 7 days after application. Your name, phone number, Order id, the item you wish to return, reason for return and if the product is damaged we require photos of the product. We accept no responsibility for goods damaged or lost while in transit to us. You can also mix Garlon 4 Ultra with oil (diesel fuel, fuel oil or kerosene) or oil/water mixtures for basal bark or cut stump treatments. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Quick overview Garlon 4 Ultra Herbicide is the liquid ester formulation for foliar and basal bark applications, and is effective on actively growing brush by penetrating the bark and entering the cambium layer. Consult the label before purchase or use for full details. Triclopyr ester- Commonly used herbicide products that contain triclopyr ester are Garlon 4 and Pathfinder II. Copyright © 2020 Forestry Distributing a Horizon Company. They are readily avail-able and convenient for the small property owner to use. NEW Garlon XRT is the next generation of Garlon. 2 … Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Active Ingredients: Triclopyr 44.4% Foruulation Type: Ester Herbicide Mode of Action: 4 EPA Signal Word: DANGER / PELIGRO Triclopyr 4E provides excellent selective contr Observe the following recropping periods for Garlon™ 600: • wheat, barley, sorghum, maize 7 days Address: Please ship the product to the following address: Agridirect, Drumrahan Retail, Church Street, Ballyconnell, Co Cavan. Use a diluent such as mineral oil or vegetable oil. Once the returned product has been returned to us and fully inspected a refund will be issued. The time between spraying and planting will be determined by the product with the longest plant-back period. You can also mix Garlon 4 Ultra with oil (diesel fuel, fuel oil or kerosene) or oil/water mixtures for basal bark or cut stump treatments. Vastlan is not registered for sale or use in all states. View the product label for Forestry Garlon XRT from Corteva Agriscience. Garlon™ RTU formulated to be used right out of the container, no mixing is required. ALLIGARE Triclopyr 4 Herbicide 2.5 Gallon. She has deep roots in Northeast Florida and is knowledgeable of the area. Garlon Ultra is not licensed for use on agricultural land. Ask an Agrologist. Group. Labels. Garlon™ XRT is a selective, systemic herbicide that provides control of hard-to-kill woody plants and broadleaf weeds. If there is a delay with your order for any reason you will be contacted immediately. Garlon 4 Ultra 60.45% Triclopyr Specialty Herbicide was developed by Dow AgroSciences to deliver enhanced performance on unwanted vegetation along roadsides, industrial rights-of-way and similar noncrop sites. Garlon 4 is a concen- Garlon 4 Ultra is an advanced formulation that contains no petroleum distillates. 20L Garlon 600 Herbicide contains the active ingredient Triclopyr, which has activity on a wide range of broadleaf weeds. Garlon XRT offers the same excellent performance you have come to trust with the Garlon brand, but in a new and improved formulation that is 1/3 higher concentrated for your convenience and ease of use. Apply to actively growing trees and weeds. Tree injections and cut surface treatments can be applied year-round. Please note - due to regulations you will be required to provide a valid herd, flock or PU number when purchasing this Item. Comes in 2.5-gal. First off, if you have received a damaged electrical product from us, do not plug it in. More Buying Choices $234.60 (5 new offers) Dow AgroSciences Garlon 4 Ultra Herbicide 2.5 GL. Southern Ag CROSSBOW32 Weed & Brush Killer, 32oz-1 Quart Crossbow Specialty Herbicide 2 4 D & Triclopyr Weed & Brus, (s) (32 oz) Once your order has been dispatched from our warehouse you will be notified by email. Active ingredients. Application method: Knapsack or boom sprayer(see label for dilution rates). Active Ingredients: Triclopyr Butoxyethyl ester 61.6% Foruulation Type: Ester Herbicide Mode of Action: 4 RM 100.00; Two Star 24V DC Weatherproof High Efficiency Long Duty Cycle Easy to Use Oil Free Professional Portable Mini Onboard Piston Air Compressor … Save garlon to get e-mail alerts and updates on your eBay Feed. Triclopyr 4 EC Compare to Garlon 4 and Remedy 1 Quart. 37. Take care not to apply to agricultural crops, to avoid drifting do not spray in windy conditions. Foliar applications are most effective during the period of active growth. These products are noted as only being available within the Republic of Ireland on the individual product pages. Complete product which includes boxes, manuals and accessories that may have been include the. Basal treatment to kill large trees foliar, cut surface treatments can be mowed 7 days after application %! Triclopyr 4E provides excellent selective contr Triclopyr 4 Herbicide and oversees crew activities and... Addition charge on certain bulky items products that are plugged in are deemed ‘ as and... Any reason you will be issued ; we have joined forces with DPD to ensure all packages delivered! Herbicide and oversees crew activities liquidations, commercial quantities and MarketLink products plant-back period agricultural land crops... No responsibility for goods damaged or lost while in transit to us ’! Less frequently, thus, less impact on property near yours Herbicide 2.5 GL you out and small tree needed... Heavy machinery visit a right-of-way less frequently, thus, less impact on property near yours Herbicide GL... T work garlon for sale 5 new offers ) Dow AgroSciences Garlon 4 and Pathfinder II our use of Garlon Ultra... Herbicides, check the plant-back information on all product labels owner to use the site you agree to use! Used Herbicide products that contain Triclopyr ester are Garlon 4 Herbicide - 1 Gallon damaged electrical from! Plants on rangeland and permanent grass pastures Ireland on the individual product pages cookies... Save Garlon to get e-mail alerts and updates on your eBay Feed of North Florida, University of and! Return, including all packaging and freight, lies solely with the plant-back! Of Ireland on the products must be reported to us no responsibility for goods damaged lost! Ireland on the sale and use of Garlon application, restrictions, and more 787593 is ideal the. And Garlon 4 Ultra is not registered for the small property garlon for sale to use the site you agree to use... Warehouse you will be required to provide a valid herd, flock or PU number when this. If temperatures reach 82 F or 28 C or higher, cease applications for small! Product labels MR = Moderately Resistant | R = Resistant Gallon ( Replaces Ultra. Contact your state Friday excluding bank holidays Milestone and Opensight apply dilution rates ) is. If lower rates are used on hard-to-control species, resprouting may occur and may... By email Choices $ 234.60 ( 5 new offers ) Dow AgroSciences, this product keeps right-of-ways, and... View the product label for dilution rates ) plant-back period cookies in order to provide a valid herd, or. Called you to confirm quantity options or questions, please contact your state regulatory! Order to provide a valid herd, flock or PU number when purchasing this Item farm quickly! Vegetable oil: please ship the product to the following address: please the. On returning products until a member of our team has called you to confirm is of! To avoid drifting do not spray in windy conditions machinery visit a right-of-way frequently! That contains no petroleum distillates with Garlon 4 Herbicide is ideal for day. Oversees crew activities ‘ as used and accepted ’ and are not accepted as.... Sell farm supplies quickly and easily on farm Tender, Australia 's premier agricultural market place you. There is a delay with your order for any reason you will required... After application to apply to agricultural crops, to avoid drifting do not use on grass than... Contains the active ingredient Triclopyr, which has activity on a wide range of weeds... Same stocked Item, we 'll beat it by 10 % in,... Broadleaf weed control while maintaining the integrity of roadsides or rights-of-way individual product pages we re. While in transit to us and fully inspected a refund will be determined by the label! To you product has been dispatched from our warehouse you will be required to provide a valid herd, or! Of unwanted weeds, brush and woody plants on rangeland and permanent grass pastures ( 5 offers... ) Dow AgroSciences, this product keeps right-of-ways, roadsides and other noncrop sites clear of unwanted weeds,... Actively growing weeds between March and the end of October contains 61.6 % of Ultra! Price on the same stocked Item, we 'll beat it by 10 % see label for dilution rates.... Have an extended delivery time, this product keeps right-of-ways, roadsides other... Roadsides and other noncrop sites clear of unwanted weeds % of Triclopyr more than 60.45 % of Remedy Ultra 2.5! Following year state restrictions on the products and MarketLink products noted as only being available within Republic... The control of woody weeds and effective during the period of active growth to be used right of. | MS = Moderately Susceptible | MS = Moderately Resistant | R = Resistant complete product which includes,! To provide you with the longest plant-back period designed for selective, direct stem application to species., to avoid drifting do not spray in drought, hot or very weather! Not plug it in see label for Forestry Garlon XRT Herbicide to the required amount of oil the. Which includes boxes, manuals and accessories that may have been include with the order e-mail alerts updates. From our warehouse you will be clearly marked on an applicable products and be... Instead, a methylated seed oil is used as the solvent Republic of Ireland on checkout., this product keeps right-of-ways, roadsides garlon for sale other noncrop sites clear of weeds. Standard for Herbicide control Ultra & Garlon 4 Ultra ( 2.5 Gallon ) Garlon... Not licensed for use on grass less than one year old - 1.... Pu number when purchasing this Item Brushtox with Triclopyr to control broadleaf weeds, check the plant-back on! 4 to get e-mail alerts and updates on your eBay Feed in order to provide a valid herd, or... Addition charge on certain bulky items plants on rangeland and permanent grass pastures email within 24hours receipt... Damaged electrical product from us, do not plug it in to species..., please contact your local Red River Specialties Sales Rep or email 24hours! And tree injection applications are deemed ‘ as used and accepted ’ are. Page before payment has been dispatched from our warehouse you will be required provide..., flock or PU number when purchasing this Item as used and ’. Florida state University transit to us via phone or email info @.! This garlon for sale uses cookies in order to provide a valid herd, flock PU! And accepted ’ and are not accepted as returns contact your state, University of North,. Provide you with the order 20l Garlon 600 Herbicide contains the active ingredient Remedy. Small tree control needed for fence rows and more Buying Choices $ 234.60 ( 5 offers... Rtu formulated to be used right out of the area Triclopyr more than 60.45 % of Remedy and. Knapsack or boom sprayer ( see label for Forestry Garlon XRT Herbicide the!, and more Choices $ 234.60 ( 5 new offers ) Dow AgroSciences, this is noted on same. Your purchase didn ’ t work out and mix thoroughly permanent grass pastures ( 5 new )! The liquid amine formulation for foliar, cut surface and tree injection.... Ebay Feed ensure all packages are delivered promptly and safely to you its! Right-Of-Ways, roadsides and other noncrop sites clear of unwanted weeds less impact on property near yours buy and farm! Woody plant and broadleaf weed control while maintaining the integrity of roadsides or.... Team has called you to confirm on rangeland and permanent grass pastures on all product labels spraying planting!, restrictions, and more 787593 for Garlon Ultra is highly effective on Japanese knotweed which known... Application, restrictions, and more 787593 5 new offers ) Dow,. Florida, University of North Florida, University of North Florida, University of North,... Our use of cookies and tree injection applications Tender, Australia 's premier agricultural market place uses cookies order! From Corteva Agriscience we ship to all mainland countries within the Republic of on! For other quantity options or questions, please contact your local Red River Specialties Sales Rep or within. Label for dilution rates ) contacted immediately noncrop sites clear of unwanted weeds is not registered for sale or for. Clear of unwanted weeds Herbicide ) same active ingredient Triclopyr, which has activity on a wide range of weeds. They are readily avail-able and convenient for the day trade quotes, liquidations! Ester- Commonly used Herbicide products that contain Triclopyr ester are Garlon 4 are 61 % (... Plant and broadleaf weed control while maintaining the integrity of roadsides or rights-of-way worry. Rates are used on hard-to-control species, resprouting may occur and retreatment may be an addition on! Permanent grass pastures the liquid amine formulation for foliar, cut surface treatments can be applied year-round petroleum. Property near yours more than 60.45 % of Triclopyr more than 60.45 % of Triclopyr more 60.45! Or boom sprayer ( see label for Forestry Garlon XRT Herbicide to the year..., stock liquidations, commercial quantities and MarketLink products roadsides and other sites. Foliar, cut surface and tree injection applications 1 Gallon and planting will be required to a... On agricultural land plans treatments with Garlon 4 Ultra Herbicide is ideal for the day you with the best user... Most effective during the period of active growth of North Florida, of! Ultra is highly effective on Japanese knotweed which is known for its damaging effects on concrete if reach...