In article ,
"david" wrote:

Came across this and thought it was interesting..........

More on Caffeine as a Molluscicide

SNIP LOTS OF INTERESTING STUFF

Currently, the U.S. Food & Drug Administration considers caffeine to
be a GRAS (generally recognized as safe) chemical; it is allowed in soft
drinks at a concentration of 0.02%. However, pure caffeine is quite
toxic to humans, and its legal use as a pesticide in the U.S. has been
approved by the Environmental Protection Agency only in Hawaii (to
control frogs, NOT molluscs), where pure caffeine powder is considered a
³restricted use² pesticide and must be applied only by Certified
Applicators. As we noted in February 2003, instant coffee (as drunk)
typically contains approximately 0.05%, and brewed coffee has a bit
more. It would take a REALLY STRONG BREW of coffee to approach the
percentages of caffeine found by the Hawaiian researchers to be highly
effective against molluscs.
SNIP



So, essentially, if you are going to chuck your coffee on your garden,
make sure it's espresso or Turkish?

(Mind you the American idea of a REALLY STRONG BREW is not mine).

--

"I go online sometimes, but...everyone's spelling is really bad,
and...it's depressing"