spanish slug pest arion vulgaris snail parasitizes on tomato leaves fruit unripe green solanum lycopersicum leaf

spanish tomato fruit slug green unripe arion solanum lycopersicum vulgaris leaves vegetable lettuce cabbage vegetables snail moving leaf parasitizes detail closeup garden eating ripe plant crops invasive spain field native land iberian peninsula dangerous pest agriculture farming farm moves enormous damage overpopulation parasites disposal molluscicides poison pesticides parasitic europe brownish