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MBI's molluscicide Zequanox® receives US EPA Approval
Jul. 9, 2014
Zequanox
Category：Biopesticide
Zequanox, the industry’s only selective and environmentally compatible molluscicide, was first approved by the EPA in 2012 for mussel control in enclosed systems and infrastructures for energy producers, manufacturing companies and golf courses. With this new EPA approval, Zequanox now offers private waterfront owners and natural resource managers an effective solution to control existing populations of invasive mussels or knock back new infestations without the use of environmentally harmful potash and copper-based products.
Invasive mussel populations are now prevalent in major waterways throughout the country, including the Great Lakes Region as well as the Mississippi, Arkansas, Tennessee and Colorado rivers. The mussels have a significant economic and environmental impact on recreational water use. Colonies of invasive zebra and quagga mussels negatively impact native mussel populations, disrupt the natural ecosystem and cause proliferation of toxic blue-green algae. They decrease game fish populations, which can have a serious effect on the economic health of the fishing industry. Swimmers run the risk of injury from the invasive mussels’ sharp shells, and water intakes from infested lakes and rivers used for irrigation, fire suppression and drinking water can suffer impeded or blocked flow and damage to infrastructure and equipment.
Additional economic challenges caused by invasive mussel infestations include decreased lakefront property values, loss of revenue from closed reservoirs and reduced recreation, and costs to remove or manage the infestation.
Keith Pitts, Vice President of Regulatory Affairs for MBI, remarked on the company’s biological solution, “We are extremely pleased that Zequanox is now available to lake managers and consumers. We have seen great success in enclosed systems, and now waterfront property owners and natural resources agencies have an invasive mussel control option that is more environmentally friendly than other solutions. The product can be administered without harming people, pets or the environment.”
Zequanox is composed of dead cells derived from a naturally occurring soil microbe, and it controls mussels in all life stages. Unlike toxic treatments, such as potash and copper-based solutions, Zequanox is biodegradable, noncorrosive and nonvolatile. In addition, Zequanox is highly selective to control only the invasive zebra and quagga mussels, is effective in a broad range of water conditions and according to the EPA, its active ingredient has “low toxicity and presents little risk to non-target organisms.”
Jessi DeMartini, research center coordinator with the Forest Preserve District of DuPage County, Ill., was part of two collaborative open water studies at the Deep Quarry Lake in DuPage County in 2012 and 2013.
Part of the Urban Stream Research Center in Warrenville, Ill., DeMartini, along with partners from Southern Illinois University and MBI, tested Zequanox in two different objective trials and found the product to be effective in destroying the invasive mussel population within the treatment sites without harming surrounding species or the native ecosystem.
“The product is not damaging to aquatic life, humans or infrastructure,” DeMartini said. “Zequanox produced high mortality of the zebra mussels – reaching 97 percent at the peak of application – while native fish exposed to the product remained unharmed. After further testing we concluded there were no lasting impacts to water quality.”
Source: Marrone Bio Innovations
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