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Wasps from Lake Natimuk in Victoria were transported and released in Western Cape in 1987 and as no galls were seen the first summer, a second transfer — this time from Mount Compass, South Australia — was made in 1992 as scientists suspected the first cohort might have been incompatible with populations of golden wattle in Africa. [4]
Leaf galls. This is a list of insect galls arranged into families. This list is incomplete; you can help by adding missing items. (January 2023) Coleoptera Beetles
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Galls act as both the habitat and food source for the maker of the gall. The interior of a gall can contain edible nutritious starch and other tissues. Some galls act as "physiologic sinks", concentrating resources in the gall from the surrounding plant parts. [25] Galls may also provide the insect with physical protection from predators. [35] [24]
The introduction of the acacia gall rust fungus, (Uromycladium tepperianum), has proven to be highly effective at reining it in, reducing density by 80%. [10] The acacia seed weevil ( Melanterius species) was introduced in 2001 and has now (in 2007) reached the stage where there are sufficient numbers available to begin its distribution.
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.
Galls made by D. vitifoliae on leaf of Vitis sp.. Grape phylloxera is an insect pest of grapevines worldwide, originally native to eastern North America.Grape phylloxera (Daktulosphaira vitifoliae (Fitch 1855) belong to the family Phylloxeridae, within the order Hemiptera, bugs); originally described in France as Phylloxera vastatrix; equated to the previously described Daktulosphaera ...
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.
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