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Aquatic Weeds

Aquatic Weed Management are available to control aquatic weeds found within our waterways.Ongoing management and follow-up control play an essential role in the reduction of aquatic weed infestations
 Aquatic weeds are a threat that can seriously impact our waterways and dams and impact the recreation use of our lakes.
Azolla Spp (Azolla)
Azolla is found in natural water bodies, the species is very active can build up at structures impeding water flow or can prevent stock from watering especially on windward sides of dams or natural waterways.
Best Method of Removal is by mechanical or manual means. This species is often confused with Salvinia spp, Spirodela spp and Lemma spp. Azolla is a floating fern and in many areas is considered a weed.
Salvinia Molesta (Salvinia)
Salvinia is a fern from South America and is declared a noxious plant throughout Australia. The leaf structure gives buoyancy to the plant allowing it to float on the surface of the waterway.
This plant, under the right conditions has the ability to double the area it covers in 5 - 10 days.
Salvinia is capable of choking wetlands, killing fish, reducing water quality and harbouring disease-bearing vectors, this weed can be treated chemically but the preferred method is mechanical or manual removal
Egeria Densa (Dense Waterweed)
Egeria is a South American species that forms dense submerged masses. It thrives in slow flowing water or in small lakes. This plant presents a problem in recreational waters by restricting boat movement and trapping swimmers.
In Australia this is a single sex plant, and propagation occurs from small pieces. These are generally spread by inefficient harvesting practices. This emphasises the importance of collecting all harvested matter. It is similar to Hydrilla verticillatta Lagarosiphon major and Elodea canadensis . Dense Waterweed is best removed by mechanical or manual means.
Vallisneria Americana (Ribbon Weed)
Ribbon Weed is a submerged native plant and is found in all states of Australia. It is very similar in form to V. nana and the related Blyxa species, also the juvenile leaves of Ottelia ovalifolia.
Found in stationary to fast flowing waters Ribbon Weed can grow to 4 metres in length. This plant may cause obstruction to flow and is best removed by mechanical means.
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