Category
page 1Galls
gall
thumb|upright=1.35|Cola-nut galls ([[Andricus lignicola) on pedunculate oak, caused by a cynipid gall wasp ]]

Taphrina pruni
species of fungus

Taphrina betulina
species of fungus

Puccinia coronata
species of fungus

Puccinia malvacearum
species of fungus

Gymnosporangium clavariiforme
species of fungus
Cecidophyopsis ribis
species of arachnid

Taphrina alni
species of fungus

Taphrina padi
species of fungus
Aceria
Aceria is a genus of mites belonging to the family Eriophyidae, the gall mites. These tiny animals are parasites of plants. Several species can cause blistering and galls, including erineum galls. A few are economically significant pests, while others are useful as agents of biological pest control of invasive plants such as rush skeletonweed (Chondrilla juncea), creeping thistle (Cirsium arvense), and field bindweed (Convolvulus arvensis). There are over 900 species in the genus.

Protomyces macrosporus
species of fungus

Eriophyes
thumb|Eriophyes cerasicrumena on cherry
thumb|Eriophyes cerasicrumena, closeup
Eriophyes is a genus of mite that forms galls, mainly on the leaves of deciduous plants. Some are called blister mites. The blue butterfly Celastrina serotina has been reported to feed on these galls and also on the mites, making it one of the uncommon carnivorous Lepidoptera.
Ustilago esculenta
species of fungus

Meadowsweet rust gall
species of fungus
Taphrina tosquinetii
species of fungus

Psylla buxi
species of hemipterans

Aceria erinea
species of arachnid

Ectoedemia turbidella
species of insect

Hartigiola annulipes
species of fly

Taphrina wiesneri
species of fungus
Gymnosporangium clavipes
species of fungus
Anabremia inquilina
species of insect

Kuehneola uredinis
species of fungus
Puccinia umbilici
species of fungus
Cystococcus
genus of insects

Aceria fraxinivora
species of arachnid

Eriophyes laevis
species of arachnid