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Pests · Slugs

Slugs

Slugs and snails eat away seedlings, leafy vegetables, and berries, and spend the day hidden in damp harborages — under boards, in cellars, and in greenhouses. They are active at night: by morning you see only a leaf eaten to lace and a glistening trail. What works against them are granular baits.

Slugs

About the pest

The slug feeds at night and in wet weather: it eats holes in leaves and fruit, cuts down young shoots, and ruins strawberries, cabbage, and greens. By day the pest is nowhere to be seen — it retreats under boards, under mulch, and into the cracks of the cellar, so an infestation is told by its traces: glistening dried slime trails and eaten-out "windows" in the leaves.

For garden stores and farms this is the number one seasonal pest of a wet summer: one damp week and there is a wave of complaints about seedlings and greenhouses. The main working format is a granular bait: the granules are scattered between the rows and around the perimeter of the beds, and slugs find them by smell and die before they reach the plants.

The granules also work where other formats do not fit: in greenhouses and cold frames, along paths, and by compost heaps. The treatment is repeated after prolonged rains — moisture washes the bait away faster than the season of activity ends.

  • Put the bait out in the evening — slugs come out to feed at dusk.
  • Treat the perimeter and the harborages: the spaces between rows, the edges of the beds, the area around the greenhouse.
  • Remove any extra harborages — boards, pieces of film, dense mulch right up against the plants.
  • Use products strictly according to the instructions on the pack.

Worth knowing

A nocturnal pest

By day you will not see a slug — the infestation shows in glistening slime trails and eaten-out holes in the leaves.

Moisture decides it

Outbreaks come with a wet summer and with watering: the damper the plot, the denser the population.

Bait granules

The working format against slugs: the granules are scattered around the perimeter — the pest finds them before it finds the plants.

Not just the vegetable garden

Slugs take over greenhouses, cold frames, and cellars — it is damp there and there are harborages for the day.

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