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slug control - coffee, copper, yeast technique

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  • Zack Domike
    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
    Message 1 of 1 , Jul 14, 2002
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      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
      traps?

      http://www.nytimes.com/2002/07/02/science/02OBSE.html?ex=1026922955&ei=1&en=d1ab8f53903253a6

      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
      acceptable.

      ..... it appears to work as a neurotoxin . . .

      Somewhat invasive but it is shocking to see the damage
      slugs and snails can accomplish. Peace,
      Zack

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