Excellent video of our American Lake Eurasian Milfoil Control Program

American Lake is a 1,200 acre waterbody in Pierce County, WA.  The lake was heavily impacted by the invasive aquatic weed Eurasian Milfoil.  The lake residents and the City of Lakewood formed a Lake Management District to combat this growth and received grant funding from the Washington Department of Ecology.

In 2019 our team designed and implemented a treatment program that used Procellacor herbicide to restore over 160 acre of the water body.  Survey work throughout the 2020 season showed 99% control lake wide.

The story can be viewed in this video https://sepro.com/aquatics/lake-pond-heroes/lake-pond-heroes-american-lake

Aquatechnex adds Cattail Bulrush Control System

Aquatechnex new MOBITRAC Amphibious Aquatic Weed Harvester in Action

Cattails and bulrush communities can be a beneficial component of your lake or pond ecology.  When left unchecked however, they can form dense monocultures that produced excessive amounts of plant biomass each fall.  This biomass if left unchecked will begin to fill in the lake and if left alone too long can result in needing to dredge the lake to recover the system.

Aquatechnex has added a MOBITRAC amphibious cutter and harvester to our equipment mix. The MOBITRAC is like a swiss army knife, it has a number of attachment that can be changed out.  In the role of emergent vegetation control, this unit can cut and collect cattails and bulrush species that have overgrown their welcome on your shoreline.

This unit is highly effective and can clear significant amounts of cattails/bulrush in a day’s operation.

MOBITRAC configured for harvesting collects cut vegetation and removes from the lake

Upon cutting and removing Cattail and Bulrush growth, we can then monitor your shoreline.  ClearCast aquatic herbicide is a highly effective systemic product that can be used to treat re-emerging cattails and keep them from coming back.

To get on the schedule for this service or to learn more, please call 855-245-5253

Lake Mapping

Aquatechnex has an active lake mapping program that can benefit lake managers in a number of ways.  A bathymetry map allows you to understand the volume of water, the shape of the lake bottom and locate any hazards to navigation such as shallow bars.  An aquatic plant biovolume map can show you the the shapes and location of aquatic plant communities as well as the percent of the water column that is occupied by this growth.  This can assist in lake management planning and aquatic plant management operations.  It can also be used to track response to treatment strategies used to control these species.  A bottom hardness map is useful in determining organic sediment accumulation in your lakes and can help design dredging or sediment reduction strategies.

This work is done using hydro-acoustic mapping technologies.  Our survey boats travel transects across the lake collecting this information.  The data is processed and map generated.

If your interested in getting your lake mapped we would like to help.  Please get in touch.

First Full Year with Procellacor Herbicide in the Books

In mid summer of 2019, the Washington Department of Ecology added Procellacor herbicide to our state’s permit and to date the results have been stunning.  We have delivered close to 100 percent control in all cases where we have applied it.

Procellacor is a product that was registered by the US EPA as a reduced risk herbicide.  It can be applied to lakes, rivers and reservoirs without any restriction on the use of treated water for Potable Supply, Swimming, Fishing or irrigating turf grass (there are short irrigation restrictions for some ornamental species).  It also has the fastest plant accumulation factor or uptake of any aquatic herbicide we have in the tool box.

In our region the primary invasive aquatic weeds we fight is Eurasian Milfoil or hybrid strains of that species.  Procellacor is becoming our go to technology for combating this plant.  Procellacor is selective for milfoils, it is systemic and will control the entire plant and it provides long term control.

In conjunction with SePRO Corporation Procellacor can come with a three year warranty and payment program as well so you have the opportunity to do more work in year one and stretch payments over three seasons.

Procellacor is available through Pro Certified Applicators such as our team.  For more information on this product and the Pro Certification Process, you may visit https://sepro.com/aquatics/procellacor-applicators


Remote Monitoring for Invasive Species at Boat Ramps

MonitorWe came across a very cool idea this week.  A Midwest company has invented a remote monitoring system with signage for boat ramps.  Most aquatic species are spread from lake to lake by boat trailers.  While many states have laws prohibiting the transport of these plants and animals, boaters still move these plants around.  The inventor of this system indicates that he decided to develop this technology when he viewed a boat covered with Eurasian Milfoil about to launch at a ramp on his lake.  While he mentioned it to the person, they went ahead anyway. 

This new system  is a hardened video capture devise that remotely monitors access ramps.  Signage is also present that indicates these systems are in place and notes the fines that may be brought against those that break these laws.  Many lake associations place wash stations at ramps, but these are seldom used.  The manufacture of this system indicates that the combination of signage and the monitoring cameras act like a highway patrolman on the side of the road, people go out of their way to insure they are complying with the law.  The system is also very effective in identifying violators.

These systems can be installed within one mile of a WiFi access site where the contents can be viewed over the Internet, or they can be set up with a remote pick up of data to review. 

These systems should play a major roll in the prevention of spread of these invasive species and help catch those that break these laws. 

As the manufacturer ramps up production, we are working with them become a dealer for these systems.  For more information contact [email protected] and view the web site at: http://www.environmentalsentry.com/

State of Maine Publishes Excellent Aquatic Weed Id Book

Kathy Hamel with the Washington Department of Ecology forwarded this link and a recommendation to look this publication over.  This is one of the better aquatic plant id manuals I have seen over the years.  It has a good key and excellent pictures and descriptions of plants.  To view this document click on the link below.  We will also be putting this on our publication page to the right if you want to come back and look some time in the future. 


Aquatic Plant Management Society Meeting this coming week

Nashville will play host to the national APMS meeting this coming Sunday through Wednesday.  This meeting is always a key in our industry.   I was the president of the organization in 1996 and responsible for the program in 1995.  I appreciate the hard work the group put into getting this year’s efforts organized. 

This year there is a record attendance by students giving research papers and posters and it should be a very interesting time.  To view the program go to www.apms.org.  You should also check back there in a bit to get abstracts of interesting papers if you are not able to attend. 

Is this the year West Nile comes home to roost?

In the western US where we do most of our work, this issue has been on the back burner.  In the Boise, Idaho area last summer, West Nile showed up while we were attacking the milfoil problem in some area lakes.  Only one state in the Union had more fatalities from this disease by the end of the year.  In the Seattle area, WN has started to show up in dead birds.

While we are heavily involved in the management of aquatic weed growth for a number of reasons, lets not forget that dense weed growth in a pond or lake is ideal habitat for mosquito larva.  Over the history of this disease, the first year or so are the most critical as much of the population gets exposed and does not develop symptoms.  After that they are immune.  The first years this pest is present is when you need to be the most vigilant. 

When you are thinking about your pond or lake, think about habitat for mosquito larva.  This pest spends most of its life underwater and needs stagnent conditions to thrive.  Controlling aquatic plants opens up the water and exposes the larva to predation.  There are also a number of biological larvacides that are very effective.  If you have questions, give us a ring.  For more information on West Nile go to: