spanish slug pest arion vulgaris snail parasitizes on potato leaves solanum tuberosum potatoes leaf vegetables cabbage

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