black bean aphids aphis fabae colony on heavyly infested plant stem and one ant on them. selectuve focus, square with

agricultural agriculture animal aphid aphidiae aphids aphis black closeup colony damage detail disease environment extreme faba farming feeding garden gardening green guard hokkaido honeydew infested insect insects legume louse natural nature nymphs parthenogenesis pert pest plant small stem sucking summer symbiont symbiosis teamwork wild wingless