July 25, 2009


Common Garden Snail (Helix aspersa)

Found in every garden this snail is widespread with a shell spherical in shape, a short spire and a wrinkled surface.
Snails secrete a mucus to help facilitate movement by reducing friction. Its top speed approx. 1.3 cm per second (47metres/hour). They have a strong homing instinct, returning readily to a hibernation site.
Garden snails are herbivores eating a wide variety of host plants. It can damage numerous types of fruit trees, vegetable crops, and garden flowers.
Many animals have snails on their menu including small mammals, many birds, lizards, frogs, centipedes, predatory insects and predatory terrestrial snails.

A few eco friendly control options are concentrated garlic or wormwood solutions and copper metal. A copper band around the trunk of a tree will deter snails from reaching fruit and foliage. Coffee grounds, egg shells or bran can be sprinkled around the plants you want protected. When the snails/slugs crawl over grounds or egg shells the soft underbellies are cut up and they will eventually die before causing any damage. Bran absorbs slime that is created by slugs and impedes movement. Bran should be reapplied after a rain. Cornmeal can be placed in a jar close to plants that are being ravaged by snails/slugs. Slugs consume cornmeal, swell up and die. The ever popular Beer in an aluminum pie plate just below soil surface filled 3/4 with a cheap beer. Slugs are supposedly attracted to the yeast and barely in beer and will be drawn to it, falling in and drowning. Check often to top up.

Helix aspersa reacts to environmental contaminations like toxic heavy metals (lead), and have been used as a sentinel organism for biomonitoring the biologic impact of atmospheric pollution in urban areas.

High Temperature:
Actual: 17°C mostly cloudy Wind SSE20km/h P.O.P.44%
Average: 26°C
Record: 35°C in 1941
Low Temperature:
Actual: 12°C mostly cloudy rain 18mm Wind WSW14km/h P.O.P.52%
Average: 15°C
Record: 7°C in 1976

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