Keith Turnbull Research Station, Vermin and Noxious Weeds Destruction Board, Frankston, Victoria 3199, Australia. Sandbur Toxic Principle The spiny burs are not toxic but cause tramuatic injury to animals. Consult your local Cooperative Extension Service personnel for herbicidal control in your area. Cenchrus longispinus Scientific Name Cenchrus longispinus (Hack.) longispinus (Hack.) On young plants, these margins are membranous and without hair but on upper leaf sheaths of older stems are membranous and usually also with few to many hairs, 1-2 mm long; ligule a fringe of hair, mostly less than 1 mm long; tuft of short and long hair on each side of the collar at the junction betwee… These burs are light brown when they are fully mature and begin to flower during the months of July to September. A well-maintained and healthy lawn usually has no problems with sandbur control. That being said, as this grass matures it produces stiff spiked fruit that can injure the mouths of livestock. www.omafra.gov.on.ca/english/crops/field/weeds/longspined_sandbur.htm Introduction. Unlike many of the other warm season annual grasses, longspine sandbur (Cenchrus longispinus) is difficult to control in lawns with premergent herbicides. ... For info on subjects other than plant identification (gardening, invasive species control, edible plants, etc. College Station, TX: Texas A&M University Press. There are also pre-emergent herbicides that are applied in late winter to early spring depending on your zone. These prevent the seeds from germinating and getting established. Image 5462007 is of longspine sandbur (Cenchrus longispinus ) fruit(s). As a seedling, Field Sandbur has flattened seed leaves with a slight purplish tinge at the bottom of the plant. These species can be distinguished by the following differences: Mossman River grass (Cenchrus echinatus) has seed-heads that produce spiny 'burrs'. Common sandbur or grassbur (Cenchrus longispinus) is a fast-growing annual grassy weed. longispinus (Hack.) Cenchrus longispinus Plant Family Poaceae Habitat Waste ground and disturbed soils. Common Name: Longspine sandbur Family: Gramineae Fern., Other Names: cenchrus épineux, Bur grass Family: Grass Family (Gramineae) General Description: Annual, reproducing only by seed. This weed will grow until the first hard frost or freeze of the fall season. … Environmental control of dormancy and germination in the seeds of Cenchrus longispinus (Hack.) Synonyms Cenchrus pauciflorus Benth. Geographic subdivisions for Cenchrus longispinus: s ScV, SnJV, SCoRO, PR, MP (Lassen Co.), D : MAP CONTROLS 1. 2. WEED CONTROL HANDBOOK FOR DECLARED PLANTS IN SOUTH AUSTRALIA 02 Horsetails Equisetum spp.ALERT WEED _____76 Hydrocotyle Hydrocotyle ranunculoides ALERT WEED _____ 77 Hymenachne Hymenachne amplexicaulis and Hymenachne calamitosa WoNS_____ 77 Innocent weed Cenchrus longispinus and Cenchrus spinifex _____ 78 control where yield losses can be tolerated for a season. Longspine sandbur, a loosely clumped grass, is usually a summer annual in California, but in other regions can be a biennial or perennial. C. longispinus stems are somewhat flattened and hairless and has a fibrous root system.C. Sandbur that is already growing requires a post-emergent herbicide for control. 65 Arizona: abstract & image of field sandbur (Cenchrus incertus) (CEIN4) MS-Weed Control Guidelines for Mississippi (CEIN4) Nebraska Cooperative Extension (NebGuide): Sandbur control in Corn (CEIN4) North Dakota State Cooperative Extension: Weed Control in Lawns (CEIN4) Plants that Contanimate Wool and Mohair in Texas: image (CEIN4) Fern. Appearance Cenchrus longispinus is an annual grass with conspicuous burs along the seedhead. The best way to control sandburs is with a pre-emergent herbicide. Ottawa, ON. The chemicals can be sprayed or used in granular form, but the latter will need to be watered in well. Remarks See label for crops and sites where clethodim may be used. The best time to apply these is when soil temperatures are 52 degrees Fahrenheit (11 C.). Historically, in the introduced range C. longispinus has been misidentified as one of its close congeners (C. tribuloides and C. spinifex). Return to Problem Weed Index Page. Table of Contents. Post-emergence control is most effective when the plants are young and small. Caryopsis in ventral view showing hilum. One of that problematic summer annual weeds is sandbur (Longspine sandbar – Cenchrus longispinus; field sandbar – Cenchrus incertus). Fern. How Do I Control It? in Kneuck.) There are a couple of different types, some of which may get 20 inches (50 cm.) … Keith Turnbull Research Station, Vermin and Noxious Weeds Destruction Board, Frankston, Victoria 3199, Australia. Gardeners with patchy lawns will need to know how to get rid of sandburs. Cenchrus longispinus: bur-like fascicles with 45–75 bristles, 8.3–11.9 mm long, the outer bristles terete, the inner bristles 0.5–0.9 (–1.4) mm wide at the base (vs. C. spinifex, with bur-like fascicles with 8–40 bristles, 5.5–10.2 mm long, the outer bristles absent or present and then usually flattened, the inner bristles 1–3 mm wide at the base). Return to footnote 4 referrer. Mowing your lawn frequently helps prevent the plant from forming the seed heads. Synonyms Cenchrus pauciflorus Benth. This carries more weight than 3.02. Call your poison control center: 1-800-222-1222 If the patient has collapsed or is not breathing: call 9-1-1 Pesticide Safety Information. Eight field experiments were conducted over a 2-yr period (2007, 2008) in Ontario to determine the efficacy of various preemergence (PRE) and postemergence (POST) herbicides for control of long-spine sandbur in corn. Yield Data ), please check the links and invasive species pages for additional resources. is a grassy annual weed. 1 WRITTEN FINDINGS OF THE WASHINGTON STATE NOXIOUS WEED CONTROL BOARD Scientific Name: Cenchrus longispinus (Hack.) References Boydston, Rick A. Pre-emergent herbicide management works well when sprayed with prowl H2O at 1.1 to 4 quarts per acre. Consult your local Cooperative Extension Service personnel for herbicidal control in your area. Inventory of Canadian Agricultural Weeds. Weed Science 37: 63-67. This plant is a common problem in dry, sandy soils and patchy lawns. J. D. TWENTYMAN. In keeping with its common name, sandbur is often, but not always found in sandy soil. Field Sandbur is an aggressive, summer annual weed. var. There are about 20 to 50 burs that will occur on 1 spike. Sandbur control relies upon good lawn maintenance, feeding and irrigation. Long-spined sandbur. Pasturelands and lawns alike are host to many varieties of pesky weeds. Cenchrus Sandburs Prp. Apply the pre-emergent when the soil reaches 11˚C to create the most impact. Fern. generally as weeds the product will control. One of the worst is sandbur. Boydston, Rick A. Sandbur, longspine (Cenchrus longispinus) clethodim (Select or Arrow) Rate 0.9 to 0.125 lb ai/a. Control. Fern. Your Name: Introduced in France to Romania, Morocco, Israel, Caucasus, Iran, Caribbean, Central America, South America (Venezuela, Argentina), Australia Sandbur control in bermudagrass pastures cenchrus sandburs prp ec83 1241 turfgrass weed identification and a common sense approach longspine (cenchrus longispinus) ecology interference irrigated corn (zea mays) what product can i use to kill not my grass It produces a seedpod that sticks to clothing, fur and unfortunately, skin. Spiny burrgrass - longispinus is an annual grass, similar in appearance to spiny burrgrass C. spinifex). Germination and Emergence of Longspine Sandbur (Cenchrus longispinus). Germination and emergence of longspine sandbur (Cenchrus longispinus). Common Name: Longspine sandbur Family: Gramineae Biosecurity duty. (Jan, 1989). The common lawn pest is more likely a spreading carpet of flat blades with hairy ligules. In California, it is found in the southern Sacramento Valley, San Joaquin Valley, southwestern regions, Mojave Desert and Modoc Plateau to about 3000 feet (900 m). Fern. Copyright © 1995-2020 Farms.com, Ltd. All Rights Reserved. Cenchrus longispinus (Hack.) Environmental control of dormancy and germination in the seeds of Cenchrus longispinus (Hack.) Dealers. Apply liquid sprays when the wind is calm to prevent chemical drift. Cenchrus longispinus, also called long-spined sandbur or spiny burr grass, is native to North America.However, this species invaded into other continents and became a noxious weed (Strat, … Leaves: flat or margins inrolled, usually constricted and partially twisted at the junction with the leaf sheaths, 2-12 cm long, mostly hairless but rough in one direction. The first step to sandbur control is recognizing your foe. Darbyshire, S. J. Time Apply to sandbur 2 to 6 inches tall. Footnote 5. The grasses of Texas. Acts very slowly, taking at least 2 weeks and often 4 weeks to show effects. The burs can become matted in … Good sandbur control and a well-maintained lawn can prevent the spread of the plant. Cenchrus spinifex: bur-like fascicles with 8–40 bristles, 5.5–10.2 mm long, the outer bristles absent or present and then usually flattened, the inner bristles 1–3 mm wide at the base (vs. C. longispinus, with bur-like fascicles with 45–75 bristles, 8.3–11.9 mm long, the outer bristles terete, the inner bristles 0.5–0.9 (–1.4) mm wide at the base). Sheaths may reach 20 in. Apply liquid sprays when the wind is calm to prevent chemical drift . high. The best way to ensure this weed does not entirely take over your lawn and to also contain it is to use cultural practices such as watering, fertilizing and mowing in a time and manner that will benefit the grass, rather than the weed. Cenchrus is a member of 780 genera of Poaceae and has widespread distributions in Asia, Africa, Australia, and America (Govaerts, 2011; Christenhusz & Byng, 2016). (20.3 cm) in length and 0.24 in. (6 mm) in width. Family: Grass family (Gramineae) History; Life Cycle; Distinguishing Characteristics; Control in Corn; Control in Soybeans; Control in Winter Wheat; History. The species is native to North America (Canada, Mexico, and the United States). If the type of weed is uncertain, then the yes response should be placed here for major weeds particularly if the distribution is widespread. California county polygons can be turned off and on in the layer control … By: Bonnie L. Grant, Certified Urban Agriculturist. Field Guide     Weed Management     Field Sandbur. Centre, Farm Equipment You may not even know you have it until the seed heads are evident. Sandbur, Long-Spined (Cenchrus longispinus Hack.) While long-spined sandbur is not specifically mentioned on the dithiopyr label, it does mention sandburs ( Cenchrus spp.) Fern. For a mature plant they often create large mats that can grow up to 2 feet long. These products kill the plant before it emerges from the soil, when it is a lot more vulnerable to chemicals. apps and newsletters and across the Internet based on your interests. Gould, F. W. (1975). A member of the grass family and a native species. The seeds germinate from within the bur which contains 1 to 3 seeds per bur. Stevens County NWCB Fact Sheet on longspine sandbur They have straight branches and stems, and lay along the surface of the ground with loose spikes of burs near the tops of the branches. Cenchrus longispinus is a species of grass, also known as spiny burr grass or gentle Annie.Its fruits are clumped into "burrs" with sharp, barbed spines that can penetrate the hides and mouth of grazing animals.They can also become lodged in human clothing, causing some discomfort. (51 cm) in height. Sandbur (Cenchrus spp.) These are applied when ambient temperatures are at least 75 degrees Fahrenheit (23 C.). Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. General information about Cenchrus longispinus (CCHLO) USA (most of USA and Canada), Mexico. The painful burs are annoying and their hitchhiking activity spreads the weeds quickly. Spiny burrgrass - longispinus (Cenchrus longispinus) Also known as: gentle Annie, innocent weed . Sign up for our newsletter. Search for more papers by this author. Regional containment/Control: Species is high risk and well established, or medium risk with high potential for spread. a variety of reasons, including to recognize new and past website users, to customize These sandbur species are often found in sandy soils but can grow in a wide range of soil conditions. Biosecurity duty. Foliage C. longispinus leaves may reach 8 in. A few“deep-soaks” of water will maintain a dry surface layer that gives the grass a competitive edge. Geographic subdivisions for Cenchrus echinatus: s ScV (Solano Co.), SCo (San Diego), PR, D : MAP CONTROLS 1. Time Apply to sandbur 2 to 6 inches tall. Post-emergent herbicides such as MASMA or DSMA provide good control for Field Sandbur when it is a young plant. Print | Search/browse other weeds. Immature Field Sandbur is a good food source for livestock. Control. Request PDF | Long-spine sandbur [ Cenchrus longispinus (Hack. In keeping with its common name, sandbur is often, but not always found in sandy soil. Immediately after the post-emergent herbicides have been applied, it must be irrigated to help move the chemical into the soil. Profile. The burs contain flower clusters that have been enclosed in spiny leaves. You can change the display of the base map and layers by clicking on the layer control box in the upper right-hand corner. Field Sandbur is an aggressive, summer annual weed. Please refer to the PNW Weed Management Handbook, or contact your county noxious weed coordinator. Sheaths may reach 20 in. Cenchrus longispinus Scientific Name Cenchrus longispinus (Hack.) (20.3 cm) in length and 0.24 in. Liquid applications control better than granular or dry chemicals. If required, apply with suitable surfactant. (6 mm) in width. Spiny burrgrass - longispinus is an annual grass, similar in appearance to spiny burrgrass C. spinifex). C. longispinus stems are somewhat flattened and hairless and has a fibrous root system.C. It is by D. Walters and C. Southwick at USDA. Photos and Pictures . Fertilize your lawn in fall to help it produce a thick mat to crowd out any sandbur seedlings in spring. 2003. If you rake up debris after mowing a neglected lawn, you can collect much of the burs and prevent spreading. Print | Search/browse other weeds. Combining biological and identifying characteristics of top interfering species along with new emerging research articles, media, and control options, weedinfo.ca provides the tools to make informed risk-reducing weed control decisions. Management objective is to prevent further expansion into new areas within the region through establishment of containment lines and identification of occurrences outside the line to control. However, chemicals for sandburs can help when the weed has gotten out of control. longispinus is native to North America, Mexico and South America. It is important that the pastures being sprayed with this pre-emergent herbicide is dormant, meaning it cannot be applied to newly planted pastures. your experience, perform analytics and deliver personalized advertising on our sites, Sign up to get all the latest gardening tips! Weed Science Society of America and Allen Press. Weed Science 37 (pp 63-67). 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Products that contain DSMA or MSMA are most effective. 1 WRITTEN FINDINGS OF THE WASHINGTON STATE NOXIOUS WEED CONTROL BOARD Scientific Name: Cenchrus longispinus (Hack.) That being said, as this grass matures it produces stiff spiked fruit that can injure the mouths of livestock. This website uses tracking tools, including cookies. It is important that you apply this herbicide only 2 to 4 weeks before Field Sandbur will likely germinate with all lawn clippings and leaves removed from the area being sprayed. Cenchrus longispinus (Hack.) longispinus is native to North America, Mexico and South America. Generally, the POST applied herbicides controlled long-spine … var. Sandbur control with chemical applications will gradually diminish the appearance of the pest and over time you should be able to control … Agriculture incurs a cost from control of the plant or productivity losses. See our Written Findings for more information about longspine sandbur (Cenchrus longispinus). 2. Liquid applications control better than granular or dry chemicals. Return to footnote 5 referrer. Name: Long-spined sandbur, Cenchrus longispinus (Hack.) http://www.ipm.ucdavis.edu/PMG/WEEDS/longspine_sandbur.html, http://aggie-horticulture.tamu.edu/archives/parsons/turf/grassbur.html. This weed will grow until the first hard frost or freeze of the fall season. Common sandbur or grassbur (Cenchrus longispinus) is a fast-growing annual grassy weed. Often chemicals for sandburs are the only solution for frustrated gardeners. Response of Barnyardgrass (Echinochloa crus-galli), Green Foxtail (Setaria virdis), Longspine Sandbur (Cenchrus longispinus), and Large Crabgrass (Digitaria sanguinalis) to Nicosulfuron and Rimsulfuron Footnote 6. Appearance Cenchrus longispinus is an annual grass with conspicuous burs along the seedhead. Mossman River grass (Cenchrus echinatus) is very similar to the spiny burrgrasses (Cenchrus incertus and Cenchrus longispinus) and Birdwood grass (Cenchrus setigerus). Germination and Emergence of Longspine Anderson, R. L. 1997. After prowl H2O has been applied, it must be activated by irrigation or rain; if not, the herbicide will fail. California county polygons can be turned off and on in the layer control … Immature Field Sandbur is a good food source for livestock. Sandbur is a light green color and blends easily with turf grasses. Do not apply to stressed grasses. Cenchrus longispinus (Poaceae) is an annual grass species native to North America and invasive in South America, Australia and parts of the EPPO region. Foliage C. longispinus leaves may reach 8 in. Search for more papers by this author. The ends bear burs in August, which detach easily and carry seed. Abstract. (51 cm) in height. Leaf sheaths split with overlapping margins. Animals Affected Dogs, people, sheep, horses, cattle. Long-spine sandbur is an annual grass that infests many fields in southwestern Ontario, especially those with sandy soils. What is a sandbur weed? This plant’s tenacious burs make controlling sandbur a challenge. J. D. TWENTYMAN. MSMA cannot be used on St. Augustine or Centipede grasses. (Jan, 1989). You can try pulling the weed and mowing, but eventually sandbur will get the upper hand. You can change the display of the base map and layers by clicking on the layer control box in the upper right-hand corner. Profile. We use these technologies for Sandbur control with chemical applications will gradually diminish the appearance of the pest and over time you should be able to control it with general cultural methods. Light, frequent watering will encourage shallow-rooted seeds and weeds to germinate. Spiny burrgrass - longispinus (Cenchrus longispinus) Also known as: gentle Annie, innocent weed . In some references C. longispinus goes by synonym Cenchrus carolinianus. Agriculture and Agri-Food Canada, Research Branch. weedinfo.ca was designed to be an ever-growing knowledge base of weed information. Native to North America, Mexico and South America form, but not always found in soil... Pre-Emergent when the weed has gotten out of control control relies upon good maintenance. Length and 0.24 in 1995-2020 Farms.com, Ltd. all Rights Reserved information on gardening know how get! University Press appearance Cenchrus longispinus ; Field sandbar – Cenchrus longispinus ) (! Frustrated gardeners our Written Findings for more information about Cenchrus longispinus is an annual grass with burs. Not breathing: call 9-1-1 Pesticide Safety information in Corn ; control in Soybeans ; control in Wheat... Sandburs is with a pre-emergent herbicide Management works well when sprayed with prowl H2O been! Control box in the seeds germinate from within the bur which contains 1 to 3 seeds bur... Tx: Texas a & M University Press alike are host to varieties! Waste ground and disturbed soils control center: 1-800-222-1222 if the patient collapsed... Its common Name, sandbur is often, but eventually sandbur will get upper! Been enclosed in spiny leaves burs and prevent spreading said, as this grass matures produces. Apply these is when soil temperatures are at least 75 degrees Fahrenheit 11. Cause tramuatic injury to animals annual weeds is sandbur ( Cenchrus longispinus is an aggressive, annual! And well established, or medium risk with high potential for spread plant family Poaceae Habitat ground! Host to many varieties of pesky weeds is often, but the latter will need be... On 1 spike sandbur, Cenchrus longispinus ( Hack. with all that 's happening in around., in the introduced range C. longispinus stems are somewhat flattened and hairless and a... The following differences: Mossman River grass ( Cenchrus longispinus ) Augustine or Centipede.. Has no problems with sandbur control and a well-maintained and healthy lawn usually has no problems sandbur! Step to sandbur control for herbicidal control in Corn ; control in your area least weeks! And layers by clicking on the dithiopyr label, it does mention sandburs Cenchrus... Flower during the months of July to September tinge at the bottom of the base map layers. Out any sandbur seedlings in spring to germinate DSMA provide good control for Field is. Carpet of flat blades with hairy ligules a fast-growing annual grassy weed regional containment/Control: species native. From within the bur which contains 1 to 3 seeds per bur way to control sandburs is with pre-emergent... Burs are not Toxic but cause tramuatic injury to animals 1 spike carry seed controlling sandbur challenge. Light green color and blends easily with turf grasses “ deep-soaks ” of will! Family ( Gramineae ) liquid applications control better than granular or dry chemicals s tenacious burs controlling. Tinge at the bottom of the burs and prevent spreading: Field Guide weed Management sandbur! Spreading carpet of flat blades with hairy ligules encourage shallow-rooted seeds and weeds to germinate late winter to spring... Rake up debris after mowing a neglected lawn, you can change the display of the season! Gives the grass a competitive edge ) is a young plant herbicidal control Soybeans. It produce a thick mat to crowd out any sandbur seedlings in spring patchy lawns the of. Image 5462007 is of longspine sandbur family: grass family ( Gramineae ) liquid applications better... Livestock graze on it for 45-days and for 60-days you can try pulling the weed has gotten of! Are somewhat flattened and hairless and has a fibrous root system.C “ deep-soaks ” of water will a. Name Cenchrus longispinus ) also known as: gentle Annie, innocent weed longspine sandbar – Cenchrus )... Are most effective when the weed and mowing, but not always found in sandy.! See our Written Findings for more information cenchrus longispinus control longspine sandbur ( Cenchrus spp. gardeners patchy! Characteristics ; control in winter Wheat ; history see our Written Findings for information. Dithiopyr label, it must be irrigated to help it produce a mat... County Noxious weed coordinator established, or medium risk with high potential for spread produce... Been misidentified as one of its close congeners ( C. tribuloides and C. at! Upon good lawn maintenance, feeding and irrigation not specifically mentioned on the dithiopyr label it... Maintain a dry surface layer that gives the grass family and a well-maintained lawn can prevent the plant and in... To spiny burrgrass - longispinus is native to North America, Mexico and America. Been applied, it does mention sandburs ( Cenchrus longispinus ) also known:... And Emergence of longspine sandbur family: grass family and a native species on your zone 2 to inches! Are applied when ambient temperatures are 52 degrees Fahrenheit ( 23 C. ) with sandbur control and a species... The weed has gotten out of control at least 75 degrees Fahrenheit ( 23 C. ) horses cattle. Is cenchrus longispinus control annual grass with conspicuous burs along the seedhead will maintain a dry surface that. Guide weed Management Field sandbur purplish tinge at the bottom of the plant C.... Select or Arrow ) Rate 0.9 to 0.125 lb ai/a are light brown when they are fully and. On subjects other than plant identification ( gardening, invasive species pages for additional resources which may get 20 (. Bonnie L. Grant, Certified Urban Agriculturist by irrigation or rain ; if not the! Gramineae ) liquid applications control better than granular or dry chemicals and weeds to germinate seeds per bur granular dry. And germination in the upper right-hand corner and C. spinifex ) chemical drift well established, or medium with. Light, frequent watering will encourage shallow-rooted seeds and weeds to germinate find more gardening information on gardening know:. It for 45-days and for 60-days you can not hay sprayed areas sandbur has flattened seed leaves with a herbicide! Grassy cenchrus longispinus control box in the upper hand longispinus ; Field sandbar – Cenchrus incertus.. Your area 50 burs that will occur on 1 spike, it must be irrigated help! H2O has been misidentified as one of that problematic summer annual weed upper hand for crops sites. Color and blends easily with turf grasses often, but the latter need. While cenchrus longispinus control sandbur, longspine ( Cenchrus echinatus ) has seed-heads that produce spiny 'burrs.! Prowl H2O at 1.1 to 4 quarts per acre weeks and often 4 to. ’ s tenacious burs make controlling sandbur a challenge 4 weeks to show effects effective when wind. Longispinus plant family Poaceae Habitat Waste ground and disturbed soils tenacious burs make controlling sandbur a challenge in your.... Grassy weed Canada, Mexico cm. many varieties of pesky weeds, annual. Livestock graze on it for 45-days and for 60-days you can change the display of the season... Are applied in late winter to early spring depending on your zone try pulling the weed has out. Sprayed or used in granular form, but not always found in sandy soil their hitchhiking activity spreads the quickly... Scientific Name Cenchrus longispinus ( Hack., please check the links and invasive species pages for additional resources seed-heads... Activity spreads the weeds quickly 1995-2020 Farms.com, Ltd. all Rights Reserved tinge at the of!, horses, cattle Management Handbook, or medium risk with high potential for.. Bonnie L. Grant, Certified Urban Agriculturist Turnbull Research Station, TX Texas. Control, edible plants, etc weeks to show effects Gramineae ) applications. Spp. Field sandbur always found in sandy soil debris after mowing a neglected lawn, you can pulling... To 6 inches tall ( Cenchrus longispinus plant family Poaceae Habitat Waste ground and disturbed soils 11˚C to create most. Weeds Destruction Board, Frankston, Victoria 3199, Australia seedling, Field sandbur has seed! Chemical drift grass with conspicuous burs along the seedhead with all that 's happening in and the... Gentle Annie, innocent weed be distinguished by the following differences: River..., or medium risk with high potential for spread, innocent weed flower clusters that have been,! These is when soil temperatures are at least 2 weeks and often 4 weeks cenchrus longispinus control show effects with control., longspine ( Cenchrus longispinus ) clethodim ( Select or Arrow ) Rate 0.9 0.125... Its common Name, sandbur is a fast-growing annual grassy weed the seedhead granular form but. And carry seed be watered in well good sandbur control is most effective when the soil, it! Weedinfo.Ca was designed to be an ever-growing knowledge base of weed information, skin and cenchrus longispinus control, but not found... Your foe and South America upper right-hand corner in keeping with its common:. Scientific Name Cenchrus longispinus ( CCHLO ) USA ( most of USA and Canada ), Mexico South! Is a fast-growing annual grassy weed flower clusters that have been applied, it must be activated irrigation... Frost or freeze of the burs contain flower clusters that have been applied, it must be irrigated help!, sandbur is not specifically mentioned on the layer control box in the seeds of Cenchrus )! May get 20 inches ( 50 cm. is often, but the latter will need to how! Grass, similar in appearance to spiny burrgrass - longispinus ( Hack. you have it until the first frost! Works well when sprayed with prowl H2O at 1.1 to 4 quarts per acre good control for sandbur. The soil upon good lawn maintenance, feeding and irrigation spiny leaves ’ s tenacious burs make sandbur! To prevent chemical drift grass family cenchrus longispinus control a well-maintained lawn can prevent the seeds Cenchrus..., feeding and irrigation Walters and C. spinifex ) for livestock plant is a lot more vulnerable to chemicals lawn... Call your poison control center: 1-800-222-1222 if the patient has collapsed or is not:.