ABSTRACT Glyphosate, aminomethylphosphonic acid (AMPA), imazapyr, sulfometuron
methyl (SMM), and metsulfuron methyl (MSM) were measured in streamwater collected …

Although the herbicide glyphosate is most widely used in agriculture, some is used for the
control of emergent aquatic weeds in ditches, wetlands, and margins of water bodies, largely …

Vernal pools are sensitive environments that provide critical habitat for many species,
including amphibians. These small water bodies are not always protected by pesticide label …

The occurrence and spatial distribution of selected pesticides were investigated along a 200-
km reach of the St. Lawrence River (SLR) and tributaries in Quebec, Canada. Surface water …

Studies were initiated to determine the acute toxicity of technical grade glyphosate
(MON0573), the isopropylamine salt of glyphosate (MON0139), the formulated herbicide …

During the past decade, the invasive Phragmites australis (common reed) has established
itself along beaches of the Great Lakes, causing detrimental impacts to both the natural …

Nuisance growths of aquatic plants in Canadian surface waters continue to be problematic.
Only diquat, a contact herbicide that is used to control many free-floating plants (but is less …

Mai Po Nature Reserve (Hong Kong) is an internationally important wetland for waterbirds.
Roundup®, a formulation based on glyphosate, has been used to control the widespread …

High-frequency sampling and analysis was conducted for the broad-spectrum herbicide
glyphosate (Roundup) in ephemeral and perennial streams receiving storm water runoff …

Concentrations of glyphosate observed in the environment are generally lower than those
found to exert toxicity on aquatic organisms in the laboratory. Toxicity is often tested in the …