Scott Hitchins
scotth@wcig.org.au
It sounds like they are probably using, amongst other things, glyphosate ('Zero','Round-up',etc). While this in itself is very low in residuals, don't forget to research any carrier chemicals used with it; usually a surfactant (i.e. detergent) which studies have shown to have some bad side-effects, especially on amphibians. While on this subject, I hear that the U.S. is imposing bans on its use,
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