a cecidomyiidae eggs on leaves.

animals background beangall beech blister bugs cecidomyiid cecidomyiidae critters damage detail disease diseased ecology eggs environment fagi fagus forest gall galls garden green infected infested insect insects larva leaf leaves malus micrococcus microcosm midge mikiola mite natural nature outdoor outdoors parasite parasitic pathogen pest plant red season small spot spread sylvatica virus wild wooden