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The meristems, where plant cell division occurs, are the usual sites of galls, though insect galls can be found on other parts of the plant, such as the leaves, stalks, branches, buds, roots, and even flowers and fruits. Gall-inducing insects are usually species-specific and sometimes tissue-specific on the plants they gall.
Galls induced by insects can be viewed as an extended phenotype of the inducing insect, and gall-inducing insects specialize on their host plants, often to a greater extent than insects that feed on the same plant without creating galls. [2] The gall's form or type depends on what organism is attacking the plant and where the plant is being ...
Diplolepis rosae is a gall wasp which causes a gall known as the rose bedeguar gall, bedeguar gall wasp, Robin's pincushion, mossy rose gall, or simply moss gall. [ 1 ] [ 2 ] The gall develops as a chemically induced distortion of an unopened leaf axillary or terminal bud, mostly on field rose ( Rosa arvensis ) or dog rose ( Rosa canina ) shrubs.
3.8 Triozidae Jumping Plant Lice. 4 Hymenoptera. Toggle Hymenoptera subsection. 4.1 Cynipidae Gall wasps. ... Leaf galls. This is a list of insect galls arranged into ...
Aceria ilicis causes felt-like galls (erinea), which are a patch of glandular hairs, caused by gall mites of the family Eriophyoidea. The bulge is 2–3 mm high on the upperside of the leaf of holm oak (also known as evergreen oak) and the depression below is several mm wide; there are usually several on a leaf.
The Cecidomyiinae, commonly known as gall midges or gall gnats, is the largest subfamily in Cecidomyiidae with over 600 genera and more than 5000 described species. [1] Larvae of the other ( basal ) cecidomyiid subfamilies feed on fungi; whereas this subfamily is best known for its members that induce galls on plants.
The common spangle gall on the underside of leaves and the currant gall on the male catkins or occasionally the leaves, develop as chemically induced distortions on pedunculate oak (Quercus robur), or sessile oak (Quercus petraea) trees, caused by the cynipid wasp [1] Neuroterus quercusbaccarum which has both agamic and bisexual generations.
Cecidomyiidae is a family of flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls . Cecidomyiidae are very fragile small insects usually only 2–3 mm (0.079–0.118 in) in length; many are less than 1 mm (0.039 in) long.