aphids plant lice, greenfly, blackfly or whitefly

aphididae aphids are blackfly colony control cultivated cycle damage destructive development entomology environment fauna female flower garden generation grass green greenfly hemiptera immature insect insects leaf lice life macro mature most natural nature nymph oviparous parasite parthenogenesis pest pests plant plants regions reproduction sexual small spring stalk sucking temperate viviparous whitefly wing winged wingless yellow