slug control - coffee, copper, yeast technique
- In Pacific northwest marine climates, a moat is a
totally reasonable response to the threat of slugs.
Another technique is a 8 cm. ribbon of copper along
the base and entrances to a greenhouse, or even
garden. Slimy slugs cannot cross copper (altho the
bridge of fallen leaves is always an issue....)
I am sending a recent article from the New York TImes
that confirms coffee, that is caffeine, kills slugs.
They say snails are similar - does anyone know if
snails are also killed by yeast-in-water, and beer
The important part follows:
Federal agriculture researchers in Hawaii have
discovered that caffeine can repel slugs and snails.
Writing in Nature, they say that caffeine has
potential as an environmentally friendly means of
controlling them on crops.
They also discovered that even very diluted caffeine
solutions repelled slugs from cabbage leaves.
Commercial snail- and slug-control chemicals produce
residues that are not allowed on food crops. Caffeine,
on the other hand, is on the Food and Drug
Administration's generally-recognized-as-safe list, so
a caffeine-based pesticide may be more environmentally
..... it appears to work as a neurotoxin . . .
Somewhat invasive but it is shocking to see the damage
slugs and snails can accomplish. Peace,
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