agriculture Aphid Aphididae attack bug crop farm green infest insecticide invade leaf leaves pest pesticide plant lice sap yellow ant arachnid arthropod bedbug cootie crawler creepy legs spiders vermin Wood Spider aphids appetite bugs busy colors colours crawling infesting insects light nectar red rose rose bush rusty shadows bud cornicles fiery colored fiery coloured greenfly heavy feaders non-winged pests slow moving soft-bodied spindly legs winged autumn brown fall maple rust texture