Trichilogaster sp. [Hymenoptera: Pteromalidae], a potential biocontrol agent for the weedAcacia pycnantha [Fabaceae]

  title={Trichilogaster sp. [Hymenoptera: Pteromalidae], a potential biocontrol agent for the weedAcacia pycnantha [Fabaceae]},
  author={G. B. Dennill and Anthony J. Gordon},
The gall wasp,Trichilogaster sp., was imported from Australia to assess its potential as an agent for the control of the invasive shrub/treeAcacia pycnantha Benth. in South Africa. Host specificity tests indicate safety for release; of 19 tree/shrub species tested, including 16 species closely related toA. pycnantha, galls developed only onA. pycnantha. However, galling intensity remained consistently low on the host plant; only 21–29% of the branches exposed to the wasp were galled during 3… 
Revision of the pteromalid wasp genus Trichilogaster Mayr (Hymenoptera: Chalcidoidea): gall-inducers on Australian acacias
The pteromalid genus Trichilogaster is revised and the following two new Australian species are described from both sexes: T. olgae and T. stefani.
Biological Control of Australian Acacia Species and Paraserianthes lophantha (Willd.) Nielsen (Mimosaceae) in South Africa
In total, ten agent species have been released in South Africa for the biological control of ten invasive Australian Acacia species and Paraserianthes lophantha (Willd.) Nielsen (Mimosaceae). Besides
Thirty years of exploration for and selection of a succession of Melanterius weevil species for biological control of invasive Australian acacias in South Africa: should we have done anything differently?
It is concluded, as many others have before us, that successful agent selection is a serendipitous blend of biological and ecological knowledge, and pragmatic circumstances.
Photosynthesis and sink activity of wasp-induced galls in Acacia pycnantha.
The ability of the wasps to cause gall formation in vegetative tissues tempers intraspecific competition and substantially increases the availability of plant resources for the development of wasps in such galls is concluded.
Multiple-species introductions of biological control agents against weeds: look before you leap.
Multiple-species introductions of biological control agents against weeds: look before you leap is presented.


Why a gall former can be a good biocontrol agent: the gall wasp Trichilogaster acaciaelongifoliae and the weed Acacia longifolia
Successful reduction of both reproduction and vegetative growth are achieved in this biological control programme, the first in which a gall‐forming hymenopteran has been used to control a weed.
Derivation and dispersal of Acacia (Leguminosae), with particular reference to Australia, and the recognition of Senegalia and Racosperma
  • L. Pedley
  • Environmental Science
    Botanical journal of the Linnean Society. Linnean Society of London
  • 1986
The morphology of seedlings, leaves, flowers and inflorescences, anatomy of the pod, the occurrence of extra‐floral nectaries, free amino acids of the seeds, flavonoid compounds in heartwoods,
Climate-Related Differences in the Efficacy of the Australian Gall Wasp (Hymenoptera: Pteromalidae) Released for the Control of Acacia longifolia in South Africa
The gall wasp Trichilogaster acaciaelongifoliae Froggatt (Pteromalidae) was released at 136 sites throughout the distribution area of the weed Acacia longifolia (Andrews) Willdenow in the Cape Province and Natal, South Africa to determine whether the wasp would establish and to determine its effectiveness where it had established.
Introducing Parasites and Predators to Control Native Pests
Although relatively few attempts have been made to control native and imported pests with parasites and predators of species allied to the pest species, the proportion of successes is surprisingly high.
Climatic indices and classifications in relation to the biogeography of southern Africa
For land-based plant communities four divisions of potential restraints on growth exist, viz. climatic, topographic, edaphic and biotic restrictions (Watts 1971). Of these four, climatic restrictions
New exploiter–victim associations expand opportunities for the biological control of both introduced and native pests and should be used as the preferred method in selecting biological control agents.