This draws out the point I think has been getting lost in the Roundup
thread. Namely, that even if neither the herbicide nor the surfactant is
toxic to bees, a solution containing water & surfactant can still kill bees
by suffocation. And probably does, since I bet the surfactants currently in
vogue are more effective than soap.

Additionally, since many surfactant formulas are proprietary and little
tested, they may also be directly toxic, or may change the exposure of bees
to the herbicide in such a way as to render the herbicide more toxic than
single ingredient toxicity studies can show.

Doors anyone know what percentage of farmers spraying glyphosate mix in
surfactant?

Catherine

> Here is a description of how to use surfactants to kill bees:
> Surfactants such as liquid dishwashing detergents, non-foaming fire
control chemicals, and firefighting foams with surfactant characteristics
(e.g., aqueous film-forming foams (AFFF)) are effective.

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