large infestation of brown slugs in cabbage crop in vegetable garden. slugs eating leaves destroying crops

arion brown cabbage caterpillar chocolate closeup control crawling creep crop crops damage damaged destroying disease diseases eating ecology europe farmer garden gardening gastropod gastropoda grow infestation insect invasion invasive invertebrate land large leaf leaves lettuce lusitanicus mollusk pest pests plot pumpkin red rotten slug slugs snail snailplage snails soil spanish species vegetable