red-banded birch aphids (callipterinella tuberculata) on green leaf

leaf green plant yellow flower insect produce invertebrate nature tree food animal branch soil grass petal red-banded birch aphids callipterinella tuberculata agriculture aphid aphididae aphidoidea attack background biology bug close close-up closeup colony color danger detail disease flora floral garden gardening hemiptera infected lice life little macro magnification natural nuisance pathology pest pesticide small spring stem summer white wild wildlife