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  • 1
    Electronic Resource
    Electronic Resource
    Successful biological control of the floating weed salvinia (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 78-80 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Salvinia was first recorded in Australia in 1952 and by 1976 it was present in many tropical and subtropical rivers and lakes and was more widespread than water hyacinth, which entered the country in the late 1800s8. Salvinia has achieved unacceptable population densities in Australia and elsewhere ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/294078a0
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  • 2
    Electronic Resource
    Electronic Resource
    Laser Beam Welding of New High Strength Steels for Auto Body Construction (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 344 (July 2007), p. 723-730 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: With the regard to the development of modern car bodies the focus lies on low productioncosts, environmental sustainability and high security standards. In order to meet these requirementsthe weight of modern car bodies has to be reduced consistently. Amongst other things, this becomespossible by the use of new high and ultra high strength steels. These materials are characterised bytheir high strength, good ductility and a high absorption capacity. In addition they have a lowerdensity in comparison to other steels. TRIP and TWIP steel belong to these high and ultra highstrength steels as well as iron-manganese steel.The development of new materials also puts new demands on the joining technologies used forproducing semi finished products and parts of car bodies. Due to its high flexibility, its goodautomation and the minor influence on the work piece, laser beam welding is an establishedprocedure in the automotive series production. The high cooling rates in combination with a carbonequivalent of the new materials which is usually higher then 0.4% lead to a martensiticsolidification of the weld seam. Martensite is characterized by its low ductility and thus affects theforming capability as well as the absorption capacity of the welded parts.In order to avoid this effect a new process has been developed within the scope of thecollaborative research program 362 (SFB 362, 1993-2005) at the Laser Zentrum Hannover. Usingthat process the weld seam structure is inductively annealed directly after the welding process.Experiments with high strength steel like TRIP700 and H320LA have shown that the temperingleads to an increase of ductility.The process is suitable for butt joints and overlap joints and is to be transferred into industrial usagewithin the scope of the project “Laser Beam Welding of Car Body Parts Made of High and UltraHigh Strength Steel”. Based on the results obtained in the SFB 362 continuous investigations willbe made in order to qualify the process for boron alloyed steel and iron-manganese steel
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.344.723.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Host specificity ofDisonycha argentinensis [Col.: Chrysomelidae], an agent for the biological control ofalternanthera philoxeroides (Alligator weed) in Australia (1982)
    Springer
    BioControl 27 (1982), S. 163-172 
    Details
    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé La biologie et la spécificité du coléoptère sud américainDisonycha argentinensis Jacoby ont été étudiées en quarantaine en Australie. Les dommages causés par les larves et les adultes lors de leur alimentation sur la plante aquatiqueAlternanthera philoxeroides (Mart.) Griser font apparaître queD. argentinensis pourrait être utilisé comme agent biologique contrôlant le développement terrestre de cette plante. La totalité du développement des stades immatures s'est uniquement faite surA. philoxeroides. Les adultes ont effectués quelques essais d'alimentation sur la betterave et l'amaranthe épineuse mais n'ont pas pondu. A partir des études sur la spécificité de l'insecte, il est conclu que l'établissement de ce coléoptère en Australie devrait s'effectuer sans risque important d'attaque sur d'autres plantes. Le premier lâcher en Australie deD. argentinensis fut entrepris en 1980.
    Notes: Abstract The biology and host specificity of a South American flea beetle,Disonycha argentinensis Jacoby was investigated in quarantine facilities in Australia. Damage from feeding by larvae and adults ofD. argentinensis onAlternanthera philoxeroides (Mart.) Griseb (alligator weed) indicated that it might be a useful biological control agent for the plant when growing in terrestrial situations. Complete development of the immature stages took place only onAlternanthera philoxeroides. Adults produced a few feeding scars onBeta vulgaris L. (beetroot) andAmaranthus spinosus L. (spiny amaranth) but failed to oviposit. Host specificity studies indicated that establishment of this beetle in Australia would be without significant risk to nontarget plant species.D. argentinensis was first released in Australia in 1980.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02375225
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  • 4
    Electronic Resource
    Electronic Resource
    Host specificity and aspects of the biology ofCalligrapha pantherina (Col.: Chrysomelidae), a biological control agent ofSida acuta [Malvaceae] andS. rhombifolia in Australia (1992)
    Springer
    BioControl 37 (1992), S. 409-417 
    Details
    ISSN: 1573-8248
    Keywords: Calligrapha pantherina ; chrysomelid ; biological control ; weed ; host specificity ; Sida acuta ; Sida rhombifolia ; Calligrapha pantherina ; Sida acuta ; Sida rhombifolia ; lutte biologique ; mauvaise herbe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé La spécificité de la chrysomèle originaire du Mexique,Calligrapha pantherina, vis-à-vis de son hôte a été contrôlée, dans les installations de la quarantaine du C.S.I.R.O. à Brisbane (Australie), sur 80 espèces de plantes appartenant à 28 familles, étroitement liées aux Malvacées ou comprenant des espèces d'importance économique. C. pantherina pond et se développe avec succès sur son hôte préférentielS. acuta et avec moins de succès surS. rhombifolia etS. spinosa, qui sont toutes des mauvaises herbes d'Australie. On a décrit les aspects de l'oviposition, du développement larvaire, de l'alimentation des adultes et de la longévité deC. pantherina. C. pantherina fut lâchée en Australie en 1989 et s'est bien installée surS. acuta mais seulement en quelques sites surS. rhombifolia.
    Notes: Abstract The host specificity of a chrysomelid beetle,Calligrapha pantherina Stål, from Mexico, was verified in the CSIRO quarantine facilities in Brisbane, Australia on 80 species of plants in 28 families, either closely related to Malvaceae or in families containing economically important species.C. pantherina oviposited and developed successfully on its preferred host,S. acuta, and less successfully onS. rhombifolia andS. spinosa, all of which are weeds in Australia. Aspects of oviposition, larval development, and adult feeding and longevity ofC. pantherina are described.C. pantherina was released in Australia during 1989 and readily established onS. acuta but established at only a few sites onS. rhombifolia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02373114
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  • 5
    Electronic Resource
    Electronic Resource
    Host specificity ofAcanthoscelides quadridentatus andA. Puniceus [Col.: Bruchidae] for biological control ofMimosa pigra (with preliminary data on their biology) (1990)
    Springer
    BioControl 35 (1990), S. 85-97 
    Details
    ISSN: 1573-8248
    Keywords: Bruchidae ; Acanthoscelides quadridentatus ; A. puniceus ; Mimosa pigra ; biology ; host specificity ; biological control ; Bruchidae ; Acanthoscelides quadridentatus ; A. puniceus ; Mimosa pigra ; biologie ; spécificité ; lutte biologique
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé La biologie et la spécificité vis-à-vis de l'hôte des Bruches se nourrissant de graines,Acanthoscelides quadridentatus (Schaeffer) etA. puniceus Johnson, en provenance du Mexique ont été étudiées dans l'unité de quarantaine en Australie. Les caractères distinctifs des génitalia de chacune des espèces sont illustrés. La ponte était observée sur 16 des 73 espèces de plantes testées, mais les larves mouraient sans pénétrer dans les gousses ou les graines, excepté surMimosa invisa K. F. P. Von Martins etM. pigra L. les larves ayant pénétré dans les graines deM. invisa mouraient au 1er stade. Les bruchides étaient spécifiques deM. pigra et furent en conséquence lâchés comme partie d'un programme de lutte biologique contre cette mauvaise herbe dans la partie nord de l'Australie en Avril 1983 et en Thaïlande en juillet 1984.
    Notes: Abstract The biology and host specificity of the seed-feeding bruchids,Acanthoscelides quadridentatus (Schaeffer) andA. puniceus Johnson, from Mexico were studied in quarantine facilities in Australia. Distinguishing characters in the genitalia of each species are illustrated. Oviposition was recorded on 16 of 73 species of plants tested but larvae died without entering pods or seeds, except onMimosa invisa K. F. P. von Martius andM. pigra L. Larvae entering seeds ofM. invisa died in the first instar. The bruchids were clearly specific toM. pigra and were subsequently released as part of a program for biological control of this weed in the Northern Territory, Australia in April 1983 and thailand in July 1984.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374305
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  • 6
    Electronic Resource
    Electronic Resource
    Biological control of water lettuce,Pistia stratiotes [Araceae] byNeohydronomus affinis [Coleoptera: Curculionidae] (1990)
    Springer
    BioControl 35 (1990), S. 363-374 
    Details
    ISSN: 1573-8248
    Keywords: biological control ; Pistia stratiotes ; Neohydronomus affinis ; water lettuce ; host specificity ; lutte biologique ; Pistia stratiotes ; Neohydronomus affinis ; laitue d'eau ; spécificité vis-à-vis de l'hôte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Neohydronomus affinis a été introduit en Australie comme agent de lutte biologique potentiel contre la laitue d'eau,Pistia stratiotes. Les études en quarantaine ont démontré que ce coléopètre était spécifique deP. stratiotes et il a été libéré dans les champs en 1982. En conséquence, il a été lâché comme agent de lutte contre cette mauvaise herbe dans plusieurs autres pays. En AustralieN. affinis réduit les infestations deP. stratiotes de 40% ou plus en l'espace de 12 à 18 mois. Les résultats sont discutés en fonction de son efficacité dans d'autres parties du monde. Nous concluons queN. affinis contrôle effectivementP. stratiotes dans les régions tropicales (à la latitude 22°), mais dans les régions plus froides son efficacité fluctue avec les conditions saisonnières.
    Notes: Abstract Neohydronomus affinis was imported into Australia as a potential biological control agent for the floating aquatic weedPistia stratiotes. Quarantine studies demonstrated that this weevil was host specific toP. stratiotes and it was released into the field in 1982. Subsequently it was released as a control agent for this weed in several other countries. In AustraliaN. affinis reduced infestations ofP. stratiotes by 40% or more within 12–18 months. The results are discussed in relation to its effectiveness in other parts of the world. We concluded thatN. affinis effectively controlsP. stratiotes in tropical regions (to lat. 22°), but in cooler regions its effectiveness fluctuates with seasonal conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02375260
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  • 7
    Electronic Resource
    Electronic Resource
    Effects in s.e. Queensland during 1967–72 of insects introduced to controlLantana camara (1979)
    Springer
    BioControl 24 (1979), S. 65-72 
    Details
    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Seasonal fluctuations in populations of the introduced speciesTeleonemia scrupulosa Stål and damage by this insect to common taxa ofLantana camara, were observed at several field sites and experimental plots. At 2 plots effects ofT. scrupulosa populations on untreated plants were compared with plants protected by application of insecticides. On untreated plants damage varied seasonally and between taxa ofL. camara. In general attack byT. scrupulosa reduced fruiting and caused severe short term foliage damage. Combined with severe stress from some other cause heavy attack may result in long term damage or death to plants. However Common PinkL. camara was more resistant to damage than were the other taxa studied. At the time of these experiments other insect species were at very low population levels and did not have observable effects onL. camara.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02377511
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  • 8
    Electronic Resource
    Electronic Resource
    Lixus cribricollis [Col.: Curculionidae] for biological control of the weedsEmex spp. andRumex crispus in Australia (1982)
    Springer
    BioControl 27 (1982), S. 439-446 
    Details
    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé La biologie et la spécificité d'une population deLixus cribricollis Boheman provenant du Maroc ont été étudiées en quarantaine en Australie. Les adultes deL. cribricollis vivent longtemps, ils présentent une estivation et sont univoltins. On a montré queRumex cripus L.,Emex australis Steinheil etE. spinosa (L.)Compdere sont les seules plantes hôtes valables parmi les 40 espèces de 17 familles de plantes exposées à des adultes deL. cribricollis sexuellement mûrs. Une alimentation normale et une ponte occasionnelle ont été constatées sur certaines autres plantes de la même famille, lesPolygonaceae, y compris les cultures mineures que sont la rhubarbe et la renouée, mais presque invariablement les larves sont mortes au 1er stade. On en conclut queL. cribricollis peut constituer un utile agent de lutte biologique contre les mauvaises herbes,R. crispus, E. australis etE. spinosa et que l'établissement de ce charançon en Australie serait sans risque pour des plantes non visées.
    Notes: Abstract The biology and host specificity of a colony ofLixus cribricollis Boheman originating in Morocco were studied in quarantine in Australia.L. cribricollis adults are long lived, have an aestivation and are univoltine.Rumex crispus L.,Emex australis Steinheil andE. spinosa (L.)Campdera were shown to be the only satisfactory hosts of 40 species of plants from 17 families that were exposed to sexually mature adults ofL. cribricollis. Normal feeding and occasional oviposition were observed on some other plants within the same family,Polygonaceae, including the minor crops rhubarb and buckwheat, but almost invariably larvae died in the 1st instar. It was concluded thatL. cribricollis may be a useful biological control agent for the weedsR. crispus, E. australis andE. spinosa and that establishment of this weevil in Australia would be without risk to non-target plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372067
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  • 9
    Electronic Resource
    Electronic Resource
    Tingidae for biological control ofLantana camara [Verbenaceae] (1971)
    Springer
    BioControl 16 (1971), S. 389-410 
    Details
    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé La liste des hôtes, la distribution et certains aspects de la biologie deTingidae trouvés sur des plantes du genreLantana sont décrits. Ces insectes présentent des aptitudes les prédisposant à l'utilisation comme agents de lutte biologique contre ces plantes. Les avantages possibles de l'importation d'un plus grand ensemble de gènes deTeleonemia scrupulosa sont discutés. Les plantes hôtes deT. elata et deLeptobyrsa decora ont été étudiées dans des conditions simulant celles de la nature. Les résultats obtenus ont montré que les deux espèces sont presque entièrement limitées àL. camara. En conséquence,T. scrupulosa, récolté dans divers habitats,T, elata etL. decora, ont été introduits en Australie.
    Notes: Abstract The host range, distribution and aspects of the biology ofTingidae recorded from plants in the genusLantana are reviewed. Tingids possess attributes predisposing them for use as biological control agents. Possible benefits from importation of a larger gene pool ofTeleonemia scrupulosa are discussed. The host ranges ofT. elata andLeptobyrsa decora were studied under simulated field conditions. Results indicated that both species are restricted almost entirely toL. camara. SubsequentlyT. scrupolosa, collected from diverse habitats throughout its range,T. elata andL. decora have been liberated in Australia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02370921
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  • 10
    Electronic Resource
    Electronic Resource
    The suitability ofTeleonemia harleyi for biological control ofLantana camara in Australia (1973)
    Springer
    BioControl 18 (1973), S. 343-347 
    Details
    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Le TingideTeleonemia harleyi Froeschner de Trinidad est connu comme ravageur des fleurs deLantana camara et ainsi il empêche la formation des graines. Des colonies mises en cage sur des plantes détruisent toutes les fleurs. L'étude de la gamme d'hôtes deT. harleyi montre qu'il est étroitement spécifique, qu'il s'alimente et pond seulement surL. camara. Il s'attaque à tous les taxons deL. camara acclimatés en Australie et devrait constituer un complément valable au complexe de lutte biologique utilisé contre cette mauvaise herbe. Sa libération en Australie a été agréée en septembre 1972.
    Notes: Abstract The tingidTeleonemia harleyi Froeschner from Trinidad is known to destroy the flowers ofLantana camara L. and so prevent seed formation. Colonies caged on plants destroy all flowers. Studies on the host range ofT. harleyi indicate that it is highly specific, feeding and ovipositing only onL. camara. It attacks all pest taxa ofL. camara naturalized in Australia and should be a valuable addition to the biological control complex. It was approved for liberation in Australia in September 1972.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02371012
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