Seeds have a long awn (tail 5 to 9cm long) with one or more bends. Mexican feather grass is an ornamental grass with graceful, waving fronds suited for dry, low maintenance areas in the landscape. Stipa tenuissima (Mexican Feather Grass) is an exceptionally lovely and graceful ornamental grass which exhibits silvery-green thread-like leaves in late spring, that sway gracefully in the slightest breeze, delicately softening any landscapes. Use glyphosate for a complete knockdown of serrated tussock and other weeds. ex Hemsl. Comments: Wiper suppression Comments: Broadacre control Herbicide group: M, Inhibitors of EPSP synthase Comments: Broadacre control Details S. tenuissima is a deciduous grass to 60cm, forming a compact upright tuft of thread-like leaves, with narrow, arching, feathery flowering panicles in summer Plant range USA to S America coarse if you slide your fingers down the leaf. Mexican feather grass has a small, thin structure at the base of the leaf blade. Stipa tenuissimaTrin. Residual activity depends on the amount of rainfall. Mexican feather grass facts. Herbicide group: J, Inhibitors of fat synthesis (Not ACCase inhibitors) Inspired from prairie planting, this modern and natural planting combines the rich, cool purple flower spikes of Catmint 'Six Hills Giant' (Nepeta x faassenii) with the billowing blooms of Mexican Feather Grass (Stipa tenuissima), providing an attractive contrast and airiness to this border. Herbicide group: J, Inhibitors of fat synthesis (Not ACCase inhibitors), Herbicide group: M, Inhibitors of EPSP synthase, Recorded presence of Mexican feather grass during property inspections. Flupropanate takes several months to kill serrated tussock. We will treat, remove and dispose of Mexican feather grass safely, at no cost to the land owner. Mexican feather grass is a serious weed to Australia. The content provided here is for information purposes only and is taken from the Biosecurity Act 2015 and its subordinate legislation, and the Regional Strategic Weed Management Plans (published by each Local Land Services region in NSW). Don't graze stock on treated areas for 14 days prior to slaughter. Rate: 3.3 L per 10 L water Its leaf blades can be 30 to 70 inches long. Herbicide resistant plants spread and are harder to control. In 2008 a retailer sold potted plants of Mexican feather grass that were labeled with another name. Blanket sprayed pastures - grazing or cutting for stock feed - 120 days. Read more. Herbicides are most effective in combination with healthy, competitive pastures. Spot sprayed areas - grazing or cutting for stock feed - 14 days. produced on a round, smooth and hairless spike, clustered in a group 15–25 cm long at the end of the spike, with a sheath that looks like a leaf at the bottom of the flowers, held inside two purple or reddish-brown structures, 6–10 mm long called glumes, with an awn (looks like a bristle or thick hair) at the end of the seed. 'Karl Foerster' has wonderful, tall flower plumes that create an eye-catching focal point when grown in a container. Resistance risk: Moderate, PERMIT 9792 Expires 30/11/2025 Residual activity is longer with low rainfall or drought. “It’s kind of ironic that Mexican feathergrass is such a threat to native pastures,” she said. Comments: Wiper suppression This information applies to all Nassella genus grasses. Glyphosate has no residual effect. Stipa mendocina Phil. Serrated Tussock is a Weed of National Significance and its entry into Australia is prohibited. Mexican feathergrass is an unpalatable grass that can become dominant under continual heavy grazing pressure, greatly reducing the productivity of pasture in a similar way to serrated tussock. It describes the state and regional priorities for weeds in New South Wales, Australia. Repeat treatment as smaller tussocks mature. It is estimated that anywhere from 14 million to several 100 million hectares of Australian land could be vulnerable to Mexican feather grass infestation. These grasses form the genus Stipa and they’re the ones you can count on to sway in the gentlest breeze.Adding Stipa to the landscape guarantees movement, refinement, and even calm. Just what everyone needs in the new year. All plants in NSW were quickly recovered and destroyed. Flupropanate 745 g/L (Photo: Claire Lock ), Mexican feather grass flower spikes (Photo: Claire Lock ). Other grasses that are commonly reported as Mexican feather grass include fox tails (Pennisetum spp.) trichotoma) and Mexican Feather Grass (Nassella tenuissima). There is less chance of damage to non-target plants (particularly trees) using flupropanate. It is hard to get rid of and has the potential to take over up to 65% of NSW. Mexican Feather Grass, Nassella tenuissima, is native to Mexico, Argentina, west Texas and southern New Mexico. because the flowers look like feathers, and the native poa (Poa spp.) the awn is 4.5–9 cm long and attached at the centre of  the seed end. Apply 2–4 weeks before seed heads emerge (indicated by thickening of tillers). Royal Botanical Gardens and Domain Trust, 2011. is unpalatable to stock and reduces pasture quality, smooth if you roll them between your fingers. The ligule is: In New South Wales, Mexican feather grass has been found in gardens at Tenterfield and Tamworth in 2006 and around Lithgow and Leeton in 2019. Resistance risk: Moderate, PERMIT 9792 Expires 30/11/2025 Checked with Steve Taylor who said "we removed the Mexican feather grass today – well spotted by Jim Bariesheff. Do not sow a new pasture or crop until flupropanate is likely to have washed out of the root zone. Resistance risk: Moderate, PERMIT 9792 Expires 30/11/2025 Mexican Feather Grass escaped from cultivation in New Zealand and has become a weed that is continuing to spread. In 2008 a retailer sold potted plants of Mexican feather grass that were labeled with another name. It is sometimes described under an older name, Stipa tenuissima. Comments: Spot spray control Label rates of flupropanate control serrated tussock with minimal damage to young native trees. Spot sprayed areas - grazing or cutting for stock feed - 14 days. Glyphosate 360 g/L Mexican feather grass will grow up to about 70cm high. Wiping is only effective on large tussocks. Leaves at the edge of the clump are often shorter and bend away from the plant. Mexican feather grass reproduces by seed. Mexican feather grass, Texas tussock, white tussock, ponytail grass and tussock grass. Stipa cirrosa E. Fourn. Mexican feather grass is native to southern USA, Chile and Argentina. Withholding period: Don't graze cows or goats that are being milked on treated areas. Withholding period: Nil. Herbicide group: M, Inhibitors of EPSP synthase It may not stop seed production when  applied after mid-August. In 2008, Mexican feather grass was mislabelled and sold through Queensland nursery and landscape outlets as Stipa capriccio. Mexican feather grass, also called pony tails, is a superb grass known for its shimmering golden panicles. In New South Wales, Mexican feather grass has been found in gardens at Tenterfield and Tamworth in 2006 and around Lithgow and Leeton in 2019. Glyphosate 360 g/L History and Origins of Mexican Feather Grass. The difference in both cases is that the leaves of these grasses are flat, not tightly rolled like Mexican feather grass. Mature plants form small, white seeds that grow in the top third of the tussock. This plant must not be sold anywhere in NSW. Interestingly there have been recent reports in Tasmania, the Blue Mountains and New Zealand – so still out there in the nursery trade despite being prohibited by all governments." Six plants in total – a search will begin of gardens nearby tomorrow. See more ideas about mexican feather grass, feather grass, grass. Landscapers have planted the grass in gardens and other areas as part of landscaping projects. Report this plant if you see it anywhere in NSW by calling the helpline listed at the top of this page immediately. Spot spray individual clumps or small patches year round, before plants set seed. This grass is a weed in its native range. The leaves are thin and can be rolled smoothly between the thumb and forefinger; however, serrations along the margins feel coarse when sliding fingers down the length of the leaf blade. The feather reed grasses are among the most adaptable and popular ornamental grasses for gardens. In Australia, it’s even illegal to import the species because it can cause significant damage to that country’s fragile ecosystems. These plants have been controlled. This is Mexican feather grass. weeping grass, wallaby grass, spear grass) can be killed by flupropanate herbicides. Weed futures: Determining current and future weed threats in Australia, Nassella tenuissima. Don't graze stock on treated areas for 14 days prior to slaughter. Withholding period: Nil. (Tussock®) Australia more than $50 million a year in lost productivity and weed control costs. Mexican feather grass is banned from propagation, distribution and sale by the Waikato Regional Council because it is considered a serious threat to New Zealand’s agricultural industries.17 Pathways Mexican feather grass has been imported illegally into Australia several times under incorrect or outdated taxonomic names and sold through nurseries. Flupropanate 745 g/L (Tussock®) As ornamental grasses have become mainstream in our gardens, the best have been identified, some have been dropped, while others have been added to fill specific niches in garden design. Glyphosate 360 g/L dead plant material covers the growing parts of weeds. Rate: 100 to 300 mL per 100 L of water Mexican feathergrass is a perennial bunchgrass with erect, slender culms approximately 40 inch… NSW DPI will lead an initial response for the treatment and disposal of the plant to stop it from spreading. Use a spray shield to minimise damage to surrounding plants. Nassella tenuissima is a species of grass known by the common names Mexican feathergrass, finestem needlegrass, fineleaved nassella, and Argentine needle-grass. Investigations have revealed that approximately 4000 Mexican feather grass plants may have been supplied to stores from January to May 2008. Rate: 1 L per 100 L of water ... A really useful low mounding grass which will grow well in a range of situations from shade to full sun. Mexican feather grass (Nassella tenuissima) is a State prohibited weed. Herbicide can be applied with boomsprays or aircraft for larger areas. It is hardy, drought tolerant, unpalatable to stock and difficult to control. The distribution of the grass in Victoria is not known as there are still plants unaccounted for as a result of the sales in 2008. Kangaroo grass and redgrass are more tolerant. Vivid red and green flowers. The herbicide washes out faster from sandy soils than clay soils. Seeds can be dispersed by becoming attached to clothing, livestock and vehicles, or from contaminated seed and fodder. Treat survivors with a different herbicide. Blanket sprayed pastures - grazing or cutting for stock feed - 120 days. It is well-matched to climate in Australia and can be harmful to the Australian environment. After seeding, use a mix of glyphosate + flupropanate. Mexican Feather Grass (Nassella tenuissima) is a major threat to Australia’s grazing industry – it is unpalatable to stock, difficult to control, and capable of thriving in a wide range of climates and soil types. It’s been sold through nurseries under the following incorrect names: Online overseas seed companies have marketed the plant under various names including: Please do not attempt to treat or dispose of this weed yourself. Mexican feather grass is a serious weed to Australia. 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