Olive Hymenachne Declared Class 2
Hymenachne is a robust, rhizomatous, perennial grass that can grow to a height of 2.5m. Its stems are erect and contain white pith. Roots may be produced at the lower nodes. The leaf blades are 10-45cm long and up to 3 cm wide, and strongly clasp the stem at the leaf base.
Flowers heads are spike-like, cylindrical, 20-40cm long and sometimes branched. Main flowering occurs from April to June. Hymenachne grows from seed and from broken stem fragments.
Information from Pest fact series produced by Land Protection August 2006
Burnett River Hymenachne Control 2009
Olive Hymenachne was discovered late in 2008 to be prolific in the Burnett River between Ideraway and Mingo Crossing. It is also found in various private water storages. With funding assistance, Council has conducted two initial sprays of all known Hymenachne sites. This initial spray was very effective and all follow up work will now be completed by relevant landholders. A field day to provide the community with information on Hymenachne was held in March 2009 at Gray's Waterhole.
Wash Down Locations and Facilities
It is important for all trucks, tractors, and mowers working in areas known to be infested with Olive Hymenachne to wash down appropriately. Click here for information on wash down facilities and their locations throughout the North Burnett.