Zequanox – Control Invasive Zebra Mussels and Quagga Mussels 2017-06-16T15:46:12+00:00

Control Invasive Zebra Mussels and Quagga Mussels without the Use of Harmful Chemicals.

home_zqZequanox® molluscicide is the industry’s only selective and environmentally compatible control of invasive zebra and quagga mussels (Dreissena species) at all life stages — from veliger to adult. The product delivers efficacy comparable to chemical solutions, but does not endanger employees, damage equipment, or result in harmful impacts to the environment or other aquatic organisms1 when used as directed.

Zequanox molluscicide is ideal for use in both enclosed or semi-enclosed systems and open water. See below for information on each use.

1Extensive toxicology studies have been conducted with Zequanox molluscicide. At application rates that produced high zebra and quagga mussel mortality no bacteria-induced mortality was recorded among any of the non-target organisms, including fish, ciliates, daphnids, and bivalves.

Zequanox Molluscicide In Action

Invasive Zebra Mussel Ingesting Zequanox Molluscicide

Applications

For safe and effective zebra mussel and quagga mussel control in:

  • Hydropower facilities
  • Coal-fired power facilities
  • Drinking water and water treatment plants
  • Golf course irrigation systems
  • Industrial facilities
  • Aquaculture
  • Water transport systems
  • Irrigation networks
  • Other enclosed and semi-enclosed facilities (see Zequanox CS product label)

Why choose Zequanox molluscicide?

  • Noncorrosive to equipment or infrastructure
  • Does not disrupt normal facility operations
  • Not subject to regulatory restrictions on usage and carries minimal permit requirements
  • Highly effective in a broad range of temperatures and conditions
  • Does not require detoxification before water discharge
  • No significant effect on water quality or non-target organisms
  • Minimal PPE required for application
For recreational and environmental rehabilitation in:

  • Lakes, reservoirs, ponds
  • Rivers and streams
  • Marinas
  • Docks, piers, swimming platforms, submerged infrastructure, buoys
  • Watercrafts
  • Ballast water
  • Shorelines and beaches
  • Other open water systems (see Zequanox product label)

As zebra or quagga mussels colonize open water bodies, they disrupt the natural ecosystem by impacting the filtering behavior of native freshwater mussels, causing the proliferation of toxic blue-green algae, decreasing game fish populations, and causing risk or injury to swimmers from sharp shells. In addition, these invasive species block water intakes, damage boats and other recreational equipment, and decrease lakefront property value.

Why Zequanox molluscicide?

  • Highly effective rapid response tool to prevent against large-scale zebra or quagga mussel infestations
  • Highly selective with no significant effect on water quality or non-target organisms
  • USDA certified as BioPreferred and Biobased – biodegradable, not persisting in the environment
  • Minimal regulatory restrictions
  • Non-corrosive – no risk to boats or recreational equipment
  • Zero-hour re-entry interval (REI), so water can be used continuously for recreational purposes

Benefits

Highly selective

Highly selective

Zebra and quagga mussels readily consume Zequanox molluscicide, which is composed of dead cells of a naturally occurring microbe, as part of their normal diet.
  • Once ingested, Zequanox molluscicide deteriorates the digestive lining of zebra and quagga mussels, causing death
  • Product controls mussels during all life stages
  • Effective in broad range of water temperatures and conditions
  • Extensive toxicology studies demonstrate the product is highly selective toward zebra and quagga mussels (Dreissena species) and is safe for many aquatic species, including fish, native freshwater unionids, plants, algae, crustaceans, insects, and waterfowl.
Easy treatments

Easy treatments

Zequanox molluscicide provides effective control by being directly applied to the water system
  • Product can be applied using standard injection equipment and PPE
  • Unlike mechanical solutions, there is no need for costly capital investments or complicated installation and maintenance
  • Zequanox treatments are non-corrosive, non-volatile and do not require detoxification before water discharge
  • As a water treatment product, the product reaches even the smallest crevices where mussels may colonize
Application flexibility

Application flexibility

Zequanox molluscicide has significant advantages over other chemical and non-chemical treatment options.
  • EPA approved and classified as a reduced-risk aquatic pesticide
  • Zequanox molluscicide is not subject to regulatory restrictions on usage, such as time of year and treatment frequency, and carries only minimal permit requirements
  • Treatments can be complete in just hours, and can occur during the workday without disrupting normal operations
  • Worker-friendly with minimal personal protective equipment (PPE) requirements

FAQs

About Zequanox Molluscicide

Zequanox molluscicide is a naturally derived, aquatic biopesticide shown to be effective in controlling invasive zebra and quagga mussels.
Zequanox molluscicide is made from a naturally occurring strain of the bacteria Psuedomonas fluorescens (Pf) (CL145A). Pf is one of the most common soil bacteria in the world and is known to protect the roots of plants from disease.
In recent years, Pseudomonas fluorescens species have been used in many applications, including pharmaceutical production, snow making, frost protection for strawberries, and disease protection for apples.
Zebra and quagga mussels readily ingest Zequanox molluscicide as a non-threatening food source. Once ingested, the product deteriorates the lining of the mussels’ digestive systems, causing the mussels to die.

In general, Pseudomonas fluorescens is an abundant and natural component of the microbial flora of soil, water and plants.

No, the specific microbial strain that Zequanox molluscicide is made from is naturally occurring and was discovered in river soil in the Northeastern United States.
Because of the product’s complex mode of action, development of pesticide resistance by zebra and quagga mussels is of minimal concern.

Product Registration and Safety

Zequanox molluscicide has been registered by the United States EPA for use in enclosed and semi-enclosed systems since 2012 and for use in open water systems for environmental rehabilitation and restoration since 2014. It holds EPA state registrations in 37 states where zebra and/or quagga mussels are present or where there is a threat for future infestation.

Yes, water treated with Zequanox molluscicide may be used to irrigate crops, for fishing, or any other uses that may result in food, feed, or drinking water contact. Zequanox molluscicide is food tolerance exempt (no maximum residue limit).

The active ingredient of Zequanox molluscicide, Pseudomonas fluorescens, is already present naturally in soil, in water, and on plants, making it a natural part of the human diet. It has negligible effects on drinking water and can be used as a method of mussel control at water treatment facilities.

Yes, Zequanox molluscicide is been determined to be exempt from requirement of a food tolerance under the Federal Food Drug and Cosmetic Act. The EPA and FDA have reviewed Zequanox uses in the manufacture of food-grade and food-contact materials and equipment and have concurred that the existing tolerance exemption for Zequanox molluscicide covers food-grade and food-contact material uses.
No, specific to Zequanox molluscicide, the Pseudomonas fluorescens species used has been tested extensively to determine its safety for human health and the environment. These studies provide confirmation that the product is not a human pathogen and is not infectious to humans.

Pseudomonas fluorescens (the active ingredient in Zequanox molluscicide) has been designated as “Biosafety Level 1” by the American Type Culture Collection and the American Biological Safety Association, defining Pseudomonas fluorescens as “having no known potential to cause disease in humans or animals.” US and international health and safety regulators consider Pseudomonas fluorescens species to be of the lowest possible risk to human health and the environment.

No, waters treated with Zequanox molluscicide may be used continuously for recreation purposes, including body-contact activities such as swimming. There is no (zero hours) re-entry interval (REI).

In addition, waters treated with Zequanox molluscicide may be used continuously for fishing and fish caught in these waters may be consumed. Zequanox molluscicide is approved for food uses and is exempt from the requirement of a tolerance for residues in and on all food commodities. Additionally, the EPA rule establishing the exemption for a requirement of a tolerance for the active ingredient in Zequanox molluscicide states: “Pseudomonas fluorescens is already present naturally in soil, in water and on plants, thereby making it part of the normal human diet.”

No, because Zequanox molluscicide is composed of dead bacterial cells, it degrades very quickly in the environment with no lasting effect on water quality.
No, Zequanox molluscicide is highly selective and only affects invasive zebra and quagga mussels.
No, when used as directed. Zequanox molluscicide has proven to be safe for non-target aquatic species. Extensive toxicology studies have been conducted with Zequanox molluscicide. The findings demonstrate that at application rates that produced high zebra and quagga mussel mortality, no bacteria-induced mortality was recorded among any of the nontargets, including fish, insects, crustaceans, plants, algae, birds, and mammals.

Pseudomonas fluorescens (the active ingredient in Zequanox molluscicide) has been designated as “Biosafety Level 1” by the American Type Culture Collection and the American Biological Safety Association, defining Pseudomonas fluorescens as “having no known potential to cause disease in humans or animals.” US and international health and safety regulators consider Pseudomonas fluorescens species to be of the lowest possible risk to human health and the environment.

As with all pesticides and biopesticides, always read and follow directions on the label.

No, Zequanox molluscicide is composed of only dead (i.e., non-viable) Pseudomonas fluorescens cells. Therefore there it is not possible for the bacteria cells in Zequanox molluscicide to reproduce and/or mutate.

No, Zequanox molluscicide is a non-corrosive material and will not have any negative effects on boats or other equipment.

Product Use

Zequanox molluscicide arrives as a wettable powder, is mixed with water on-site, and is injected using standard chemical application equipment. No specialized equipment is required for Zequanox applications.
Zequanox molluscicide is most efficacious during periods of high mussel metabolic activity, which occurs during warmer water temperatures (above 60˚F), but there is no restriction to the time of the year when the treatments can be conducted.
Personal protective equipment (PPE) should be worn when working with any type of pesticide. PPE requirements for Zequanox applications are minimal (i.e., gloves and long sleeves). Refer to the product label found for application instructions.
Zequanox treatments are competitive with alternative mussel control methods, and vary depending on site conditions. Please fill out the form below or contact us for additional information.