What is the specialized structure of Cogon grass?

What is the specialized structure of Cogon grass?

Cogon grass grows 0.6–3 metres (2–10 feet) tall and has roots that can reach more than 1 metre (3.3 feet) long. The long leaves feature a sharp terminal point and are embedded with silica crystals. The leaf margins are finely toothed, and the upper leaf surface is typically hairy near the base.

How does Cogon grass spread?

Cogongrass spreads by both seed and root fragmentation (rhizomes). Windblown seed can move several miles in air currents and plants can produce up to 3,000 seeds per season. Seed and rhizomes move even farther when hitchhiking on equipment, mulch, and fill materials.

How do you keep Cogon grass from spreading?

It is important to clean all equipment on site to prevent the spread by rhizomes. Dry periods during the summer will aid in the control of cogongrass. The area can be planted to a fall cover crop and then followed the next season with perennial or annual grass or broadleaf crops.

Why is Cogon grass unique?

Cogon grass (Imperata cylindrical) is one of the most aggressive grasses world wide and spreads by an extensive rhizome system. This study adds observational detail to growth of cogon grass rhizomes and provides for a mechanism by which cogon grass is able to perforate other species of plants.

What eats cogon grass?

Researchers have found a midge from Indonesia that attacks cogongrass. — A few bugs may be able to chew up some cogongrass, a noxious weed that elbows out pasture grass, golf course greens and valuable ecosystems, a University of Florida Institute of Food and Agricultural Sciences researcher says.

What animal eats Cogon grass?

In Mediterranean islands such as Lemnos, where Imperata cylindrica is the main grass in phryganic areas, this grass is frequently consumed by wild rabbits (Oryctolagus cuniculus) during winter.

Why do we need to be careful with Cogon grass?

Cogongrass is aggressive and invasive. It spreads by means of airborne seeds and very efficient underground rhizomes. It takes advantage of sites disturbed in agricultural, silvicultural, logging and construction activities. Once established, cogongrass is extremely difficult to control.

How can you tell Cogon grass?

Leaves

1. Blades up to 6 feet long.
2. About 1 inch wide.
3. Whitish, prominent midrib, that is often off center.
4. Margins finely serrate.
5. Some leaves are very erect, but some may droop or lie flat.
6. Often light yellowish-green in color.
7. Could have a reddish cast in fall/winter or brown after frost or freeze.

How useful is Talahib?

Traditionally used for making hats, brooms, baskets, walls and even furniture, it has been used in Ayurveda as an astringent, emollient, refrigerant, diuretic and many others— even as an aphrodisiac! Recent studies suggest that it is a potential source of bio-ethanol and bio-diesel!

How tall does a cogon grass plant grow?

Cogon grass ( Imperata cylindrica ). Cogon grass grows 0.6–3 metres (2–10 feet) tall and has roots that can reach more than 1 metre (3.3 feet) long. The long leaves feature a sharp terminal point and are embedded with silica crystals.

What do the leaves of cogongrass grass look like?

Cogongrass is a perennial grass that varies greatly in appearance. Young leaves appear light green, while older leaves turn orange-brown. In areas with killing frosts, the leaves will turn light brown during winter months and present a substantial fire hazard. Leaves. Cogongrass grows in loose-to-compact bunches.

How is cogon grass kept out of forests?

In areas other than closed-canopy forests or plantations, where cogon grass survives poorly due to shading, and heavily cultivated lands, where it is kept in check mechanically, infestations are treated by relatively costly, laborious, and repetitive control measures.

Where can I find cogongrass in South Georgia?

Cogongrass, Imperata cylindrica (L.), is considered the seventh worst weed in the world and listed as a federal noxious weed by USDA Animal and Plant Health Inspection Service – Plant Protection and Quarantine. Cogongrass infestations are being found primarily in south Georgia but is capable of growing throughout the state.

What kind of plant is cogon grass used for?

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 ).

Cogongrass is a perennial grass that varies greatly in appearance. Young leaves appear light green, while older leaves turn orange-brown. In areas with killing frosts, the leaves will turn light brown during winter months and present a substantial fire hazard. Leaves. Cogongrass grows in loose-to-compact bunches.

How big does cogon grass grow in South Africa?

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 grows 0.6–3 metres…

Cogongrass, Imperata cylindrica (L.), is considered the seventh worst weed in the world and listed as a federal noxious weed by USDA Animal and Plant Health Inspection Service – Plant Protection and Quarantine. Cogongrass infestations are being found primarily in south Georgia but is capable of growing throughout the state.