What is being done to control cogon grass?
Mowing, burning, or treating cogongrass with herbicides in early growth stages, during early flowering, or even shortly before flowering can stop seed production. However, these treatments may also cause flowering and seeding.
What is the biggest threat of cogongrass?
Cogongrass is a growing threat as it continues its rapid spread across the Southeast, reducing forest and pasture productivity, destroying wildlife habitat, impacting rights of ways and presenting an extreme fire hazard.
How did cogongrass get to the US?
Native to Southeast Asia, cogongrass was accidentally introduced into the United States as packing material in an orange crate that arrived in Grand Bay, Alabama, in 1912. A few years later, it was intentionally planted as a potential forage crop in Mississippi and as a soil stabilizer in Florida.
What is an arsenal herbicide?
Arsenal is a product that contains the herbicide Imazapyr. It is a non-selective herbicide that attacks all actively growing plants, trees, and grasses. Arsenal is absorbed through leaves, roots, and cuts in bark. Arsenal remains active in the soil for 1–5 months.
Is Cogon grass Imperata cylindrica an invasive species?
Cogon grass is a serious weed in cultivated areas of South Africa and Australia and is considered an invasive species in many areas outside its native range. Some cultivars are grown as ornamentals, and the plant is commonly used for erosion control. Cogon grass (Imperata cylindrica).
What is Arsenal herbicide?
Arsenal herbicide is a non-selective herbicide that contains the active ingredient Imazapyr. It is effective at killing many species of grass, weeds, brush, and trees. This makes it an extremely powerful herbicide that has higher killing power than typical weed killers.
Why is cogongrass a problem?
Cogongrass fires are hotter, faster and higher than native grass fires. These factors can spell trouble for people and structures near large infestations. Cogongrass not only replaces native plants, on which wildlife feed, it also has very high silica content, and therefore is unpalatable to native wildlife.
Is Cogon grass an invasive species?
Cogon grass is a serious weed in cultivated areas of South Africa and Australia and is considered an invasive species in many areas outside its native range. Some cultivars are grown as ornamentals, and the plant is commonly used for erosion control.
What is the strongest herbicide?
Ranger Pro Herbicide – Strongest Concentrate
- Glyphosate- 41% (same active ingredient as Roundup)
- Residential areas, Parks and Recreational Areas.
- Mix Ranger Pro at a rate of 2-3 ounces per gallon of water.
What herbicide kills cogongrass?
Out of dozens of herbicides tested for significant activity on cogongrass only two, the active ingredients glyphosate (Roundup a, Glypro, Accord b, etc) and imazapyr (Arsenal, Arsenal AC, and Chopper c ), have much effect on this grass.
What is cogongrass?
Cogongrass (Imperata cylindrica (L.) Beauv.), is a very aggressive exotic perennial grass that entered Alabama in 1911 in packing material from Japan. It is on the Federal list of noxious weeds and is designated as the world’s seventh worst weed.
Why was cogongrass banned in Mississippi?
In 1921 cogongrass was intentionally introduced to Mississippi as a forage plant from the Philippines, followed by Florida in the 1930’s. Cogongrass was eventually placed on the noxious weed list after it was realized that there was no economic value for the plant and it was an aggressive pest.
How long does it take cogongrass to regenerate?
Even at high rates and using tank-mix combinations, cogongrass often regenerates within a year following a single application of either product. A minimum of two applications per year is needed, realizing that older infestations may require 2 to 3 years of treatment to eliminate rhizomes. Glyphosate has no soil residual activity.