didymomyia tiliacea, gall, grows, on a linden leaf

green leaf plant flower produce nature shrub tree food insect herb invertebrate branch wildflower fruit grass didymomyia tiliacea gall grows linden lime gall tiliacea didymomyia points beads dewdrops park foliar growths selective deciduous close-up pathogenic orchard bugle detail parasitic linden dangerous pest tilia tiliae growth garden foliage outdoor flower leaf nature macro close agriculture summer botany color plant background closeup tree insect spring fungi parasite lime caused disease infected common bacterial