Aquatic Weed Control & Removal

PASES Aqua can accurately identify your weeds, map their populations and control their abundance using physical, chemical and biological control methods.

Serving Greater Sydney & Perth Regions

Weeds are usually opportunistic plant species that are not native to an area and are able to compete effectively for resources. Weeds pose a serious threat to the ecological character of lakes and wetlands, including:

A successful weed control program requires an effective management plan, and PASES Aqua can undertake accurate weed identification/mapping and propose an integrated weed management plan in which each target weed species will be controlled using appropriate techniques. Techniques used to eradicate weeds may include:

Frequently asked questions

Absolutely. Although weeds are not native, they play a functional role of stripping nutrients either in the sediment or water column. Therefore it is important to continue this role by replacing with native species. It may take some time for the plants to establish and play a significant role. 

This would depend on whats locally native, geographical location, microlimates that exist on site, depth and flow of waterbody, and what can be sourced locally (local provenance) and what can be transplanted. Best to have a site consultation to make these observations and prescribe a species mix. 

This will depend on the weed species on site and the aquatic fauna on site. It may be best to have a visual survey or undertake some trapping. Based on what we record, we may either recommend waiting till water levels are lowest, spray glyphosate, and then slash once leaves are dead and drown! In some cases, the use of an amphibous harvester may be recommended. 
Removing plants can result in fish and frogs to be more vulnerable to predators, and therefore to mitigate the impacts it is recommended to immediately replant with local natives

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We have the drive, the passion, and the knowledge to help you. We employ the right people with a strong background in fish, and/or qualifications in Biology or Aquaculture and/or related fields