spanish slug eggs nest hatchery hatch pest arion vulgaris egg-laying white laying snail parasitizes moving garden

agriculture arion brownish closeup crops damage dangerous detail disposal eating egg egglaying eggs enormous europe farm farming fertilise field garden hatch hatchery invasive land laying leaf leaves molluscicides moves moving nest own parasites parasitic parasitizes peninsula pest pesticides plant poison ripe sites slug snail spain spanish vegetable vegetables vulgaris white