General
Information:
- Glyphosate
is a nonselective herbicide: any plant it comes
into contact with will be damaged or die. The only resistant
plants are genetically engineered to that purpose.
- Glyphosate
is water soluble and odorless. Dark colored dye is typically
added to spray solutions of glyphosate to signify where
the chemical has been dispensed.
- Glyphosate
products are used on a variety of sites including food and
non-food crops, greenhouses, forests, aquatic environments,
right-of-ways, outdoor residential areas and public recreational
areas.
How it Works:
- Glyphosate
is absorbed through plant foliage (leaves) and translocated
(carried) throughout the plant, often accumulating in areas
of vigorous growth.
- Japanese
Knotweed is treated through foliar spray, as well as injection
of the undiluted herbicide directly into the base of larger
stems.
- Plants
exposed to glyphosate display stunted growth, loss of green
coloration, leaf wrinkling or malformation and tissue death.
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Environmental
Effects:
- Glyphosate
quickly becomes inert through adsorption (binding
or sticking) to soil particles, limiting leaching or runoff
of the chemical from the target site. Though glyphosate
is still present in soil, adsorption also prevents
most root uptake, leaving non-target plants largely unaffected.
- Glyphosate
also adsorbs to suspended particles in water.
- Glyphosate
is nonselective. When sprayed, glyphosate will kill any
plant leaves (and most plants) it makes contact with. Dye
(usually blue) is added to indicate sprayed areas.
Common Commercial Products Containing Glyphosate:
- *Rodeo
® (approved for aquatic use)
- *Aquamaster
® (approved for aquatic use)
- Roundup
®
- Accord
®
- Touchdown
®
*Herbicides used by the Clackamas
River
Basin Council.
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