leaves of cabbage eaten by slugs deroceras sturangi, parasite spoils harvest. harvest destruction by cabbage worm

cabbage slug turnip garden plant worm damage insect cabbagehead caterpillar damaged gardening holes larvae snailplage leaves vegetables worms cauliflower collards mollusk green gastropod invertebrate kale snail larva leaf lepidoptera macro pest invasion pieridae pieris brassicae tentacles bitten cruciferous defeat disease flea plague vegetable arion danger gastropoda lusitanian lusitanicus mollusca problem