terminal rosette gall on the top shoot of a white willow branch

plant leaf shrub green tree branch nature garden european insect damage terminal rosette gall midge camellia galls cecidomyiidae parasite rabdophaga rosaria bearing shoot stunted larva eggs pruning regeneration alba salix botany growing homeopathic apothecary organic environment foliage white willow leaves growth disease strange water cricket-bat sallow swallow tail close natural closeup background top infected