Build worm fence made of metal (copper) yourself

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Snails are a nuisance. You can kill half of the crop or a lot of shrubs in one night. In some years, it is particularly bad, there appear hundreds of snails in the garden and you can hardly lag behind with Absammeln. A snail fence can help to protect the plants. Often snail traps like the beer trap are recommended, but they attract even the slaves from the neighboring gardens and increase the problem rather than helping them. Chemical means for vegetables are rather counterproductive and who uses no poisons for vegetables, they usually do not want to have elsewhere in the garden. Snail fences are a safe way to deter the pests.
Snail fence for prevention
Prevention is always better than cure. It is ideal that snails do not even reach their favorite eating plants. While the commercially used remedies for snails are only used when an infestation has been detected, the fences do not even get that far. No snail has to give her life.
Requirements for a worm fence
Worm fences have the task of preventing snails from climbing over. They must meet certain criteria in order to be effective.
  • A worm fence must be smooth and level
  • Steep walls have
  • Ideal is when the top edge is angled outwards
  • Fence height at least 15 cm (above the earth), higher is even better
  • Good materials are plastic and metal
  • The snails find little or no grip
  • The protection must be complete. Every possibility of hatching is used.
  • Lower fence edge must be deep enough in the ground to stop the fence
  • If necessary, give construction with strings or wire more support
  • Plastic fences are cheap, but hardly effective
  • Metal fences are more expensive, but usually more reliable
Worm fence made of metal

Snail fence keeps slugs away

Slug fences made of metal are effective, but unfortunately usually quite expensive. You need a fairly large piece of sheet metal, because in order to have a grip, it must be neatly inserted into the ground and in addition the upper edge bent outwards. Ideal is galvanized sheet steel with zinc coating. The sheet metal must be 35 to 40 cm high. 10 cm are put into the ground, 15 then the fence should be high, the rest is bent out to prevent over-climbing. It is bent before mating and plugging into the ground. At a height of 25 cm bend the sheet outwards, fold as the expert says. It is ideal to then bend the last cm inwards again, which makes it more difficult to overcome it many times over. At the corners angles are attached, which connect the individual elements. They must be only 25 cm, 10 cm in the ground and 15 cm in height. So the fence is screwed together.
  • Cut sheet metal best in the hardware store or even cut to measure
  • Four parts round, which are screwed together by angles, necessarily from the inside
  • At about 25 cm, bend a straight Pfalz outwards
  • Connect all parts
  • Dig the fence 10 cm deep to prevent the snails from undermining the fence
Worm fence made of copper
The worm fence made of copper will not win a beauty award, but it serves its purpose. The advantage of this fence compared to the plastic fence is that it is not glued. It is worked with mounting brackets and hold much better. The individual fence elements remain connected.
Weinberg snails and all snails on the copper fence react best to the copper fence. Even brown slugs are quite frightening. The red slugs get harder. They are so scared of nothing. Some jerk back, others crawl over it.
What you need to know is that the fence only works when a patina has formed on it. This keeps snails off. In the first year this is not the case and the snails just climb over it. Either you use older copper sheet or you have to let it oxidize outdoor for a year. Once the dark patina has formed, the worm fence is effective.
Copper wire is described by most users as ineffective, whether horizontal or vertical. But there are also positive reports. Here's just a try.
Advantages of the copper fence


The copper strip contains substances that oxidize with the mucous membranes of the snails. So a narrow strip of copper is enough to keep the snails out. They do not even try to climb over him. Freshly constructed, the fence is ineffective. As described above, it takes time.
Build snail fence
The metal plates for the copper fence are available at the hardware store. There you can also have them cut to size. The copper fence has a much narrower strip to keep the snails out.
  • Assemble metal plates, depending on how big the fenced area should be.
  • Place retaining clips for mounting.
  • Lay the strip completely around the bed and fix it. It does not have to go so deep into the earth, but it must not fly away in the wind and be rinsed out in the rain.
  • Positive effect should also have smooth copper foil. You can get these in the craft shop or in a sprinkler shop. Snails would not crawl over it either.
Caution - Copper contains substances that are dangerous for humans and pets. Dissolved copper is toxic even in small amounts. Over time, small amounts of copper can be washed out and get into the ground. Especially with vegetable beds you should therefore consider whether it really must be a copper fence.
screw collar
In contrast to the worm fence, a snail collar protects individual plants. It is particularly effective in the sprouting time for plants that are particularly popular with snails. In the perennial bed, for example, it is possible to selectively protect individual plants from "erosion". Often plastic is used for these rings, but copper is also suitable. Important is an open ground, so that the snails can not get over neighboring plants over the fence. He must be placed free. You need one collar per plant.
  • Bend a strip of copper to form a ring.
  • Close it with retaining clips.
  • Put the ring around the plant and press something into the ground
  • The ring should be generously sized so that not soon protrude plant parts over it, which are then eroded naturally.
Snails can quickly become a nuisance. Especially in wet years, they multiply in mass and can ruin your garden season. Snail fences can be of great help, as well as snail collars. They are easy to build, whether plastic or metal. Copper worm fences help against snails once they have formed a proper patina. Copper costs a lot in the purchase and if you are unlucky, one of the fence is stolen. Copper thieves are more and more lately. In addition, a copper fence around the vegetable patch is to be considered, because copper particles can be washed out over time and get into the ground. From there, the path to the vegetables is not far away. So, as with most things in life, there are two sides to be considered.

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