Arion vulgaris

The occurrence of A. vulgaris in transported plant materials may involve the adults, juveniles or eggs.
The adults and juveniles are active after dark and may be detected in the evening or early morning, or by inspecting plant materials stored under cover. Like Deroceras reticulatum, all stages hide in leaf whorls, under debris, stones and wood and occasionally in the soil around root systems.
The eggs are deposited on the soil, under dead leaves or other surface debris and are not buried in the soil.
Traps containing molluscicides (metaldehyde, carbamate, iron pyrophosphate hydrate) may be used to collect material, but hand collecting is often just as efficient and avoids the risk of contaminating produce.