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Herbicide and Surfactant Information
Last year's small stand of Phragmites almost elliminated
The following are general descriptions and not intended to represent the definitions provided in Michigan or Federal laws.
Pesticide - "a chemical preparation for destroying plant, fungal, or animal pests."
Herbicide - "a substance or preparation for killing plants, especially weeds"
Note: An herbicide is a pesticide.
Adjuvant - "an ingredient (as in a prescription or solution) that facilitates or modifies the action of the principal ingredient"
Surfactant - "a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved [syn: wetting agent]"
Note: There are a variety of adjuvants used with herbicides. A surfactant is one type of adjuvant.
The following information is provided regarding the herbicide and surfactant products discussed at the workshop. Note: These products are labeled "CAUTION". Do not handle these products unless you understand and follow all appropriate precautions and Federal and State rules and regulations. Follow strickly the instructions on the labels.
We use the herbicide Aqua Star or AquaPro with the surfactant Cygnet Plus.
Both are available from Joe Bondra at Cygnet Enterprises, 1860 Bagwell, Flint, MI 48053, 1-800-359-7531.
AquaStar or AquaPro costs about $40 per gallon and is available in 2.5 gallon containers. Cygnet Plus cost about $22 a gallon and is available in one gallon containers. Other approved herbicides such as Shore-Klear are available in quart sizes but cost about $45 per quart. Depending on current availability of Aqua Star or AquaPro another glyphosate based herbicide may be substituted for it as long as the product is on
the Michigan DEQ approved list of aquatic pesticides and related products.
Follow the manufacturer's recommendations on all labels for the treatment of Phragmites.
In the State of Michigan DEQ publication
Guide to the Control and Management of Invasive Phragmites"
(http://www.michigan.gov/documents/deq/deq-ogl-ais-guide-PhragBook-Email_212418_7.pdf) it is recommended that you use 1% to 1.5% solution of Glyphosate for low volume applications such as hand swiping or backpack spraying. To make a 1.5% solution you would need to add 1 and one half parts of Aqua Star or AquaPro for each 100 parts of water. Since there are 128 oz. of water in a gallon you would need to put in 1.92 oz. of Aqua Star or AquaPro for each gallon of water. Then, for the surfactant, add 1 oz. of Cygnet Plus pre gallon.
The following are pdf files of the labels and MSDS sheets for these products. Read and understand them before you purchase these products or handle them and follow all instructions as stated on the labels.
Aqua Star herbicide label
Aqua Star herbicide MSDS sheet
AquaPro herbicide label
AquaPro herbicide MSDS sheet
Cygnet Plus surfactant label
Cygnet Plus surfactant MSDS sheet
If you have questions about certifications or permits needed for the use of these products contact the Michigan Department of Environmental Quality and Michigan Department of Agriculture. You can also research your question with the help of our page on Permit Information.
For information about the safe use of herbicides and surfactants see our Herbicide Safety page.
If you would like to be on a general email list to receive notices of other phragmites control events and information about controlling phragmites send your name to Newsletter@phragmites.org along with a message which says "subscribe."
Bob Williams and Chuck Miller are members of a committee of
Harsens Islanders to continue to study the phragmites problem on Harsens Island
and its solutions. They welcome others who would like to join the effort by
further researching the topic and sharing knowledge on eliminating phragmites.
If you are interested contact Bob Williams at Bob@StewartFarm.org
or call Chuck Miller at 810-748-7209.