the slug crawls on the concrete surface. the slug eats dog food. summer evening after the rain

snail garden slug arion vulgaris plant crawl pest land animal wild eat brown nature living invasion lusitanicus fight control closeup home reptile slugs outdoor farming slime green slimy agriculture grass wildlife summer wet invasive damage slowly sensor lusitanian gastropoda snailplage european europe group infestation mucus problem snails pesticides ecology crawls concrete surface eats dog food evening rain