slug snail parasitizes spanish pest patty pan arion vulgaris close-up pattypan squash flower bloom blossom patty pan

slug snail parasitizes spanish patty pan arion vulgaris pattypan squash cucurbita pepo patissoniana moving callop sunburst granny custard marrow detail closeup garden eating plant crops bloom invasive blossom spain field native land peninsula dangerous pest agriculture farming farm moves damage parasites disposal poison pesticides parasitic czech europe brownish flower summer