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PPRI News No. 68 - April - June 2006

* New faces at the Weeds Division * The 34th Annual Weeds Biological Control
Workshop at Klein Kariba: 22-26 May 2006 * Collaborative research on southern African Leaf Beetles (Coleoptera: Chrysomelidae) * Mites a serious problem on apples in the Western Cape * Pareuchaetes insulata population explodes on the KZN South Coast * Exploration for seed-feeders of Eucalyptus species in Australia * New biocontrol agent from Australia released against Hakea sericea * The threat of hydrilla to South Africa.

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PPRI News No. 67 - January - March 2006

* Laboratory and field host utilization by established biological control agents of Lantana camara L. in South Africa * The evaluation of cf. Phenrica sp. 2 (Coleoptera: Chrysomelidae: Alticinae), as a possible biological control agent for Madeira vine, Anredera cordifolia (Ten.) Steenis in South Africa.

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PPRI News No. 66 - October to December 2005

* The Working for Water Programme for Building Research Capacity in the field of Biological Control of Weeds * Survey for natural enemies of Tecoma stans in the USA * PPRI field trip to Venezuela and Jamaica for biocontrol of Siam weed (chromolaena odorata)

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PPRI News No. 65 - July - September 2005

*33rd Annual Weeds Biocontrol Workshop * News from the Stellenbosch Weeds Laboratories * Two new insect agents for the biocontrol of hakea * Dasineura dielsi, the small fluted galler, released for the biological control of Acacia cyclops (rooikrans) in the Western Cape * Fungus established for the biocontrol of lantana * Predatory mites attacking biocontrol agent * The impact of the gall rust fungus in controlling Port Jackson willow * Bioherbicide fungi for hakea and black wattle still available * Obituary – Biocontrol scientists – Hardi Oberholzer and Daniel Mafokoane.

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PPRI News No. 64 - July 2005

*Helmuth Zimmermann retires from Weeds Division * Arne Witt takes over at Weeds Division * News from the Cedara Weeds Laboratory in KZN * Biocontrol of triffid weed (Chromolaena odorata) * Biocontrol of bugweed (Solanum mauritianum) * Biocontrol of famine weed (Parthenium hysterophorus) * Biocontrol of pompom weed (Campulclinium macrocephalum) * At last – a good biocontrol agent against lantana! * Finding safe and effective natural enemies for Pompom weed * New Eucalyptus pests discovered * Working for Water fights water hyacinth * Developing regulations in terms of the Biodiversity Act

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PPRI News No 112 – April 2018-September 2018

  • Biocontrol agent released against Mexican sunflower (Tithonia diversifolia)
  • Diversity of fungal genera
  • Blueberry bud mite
  • Sac spiders and spider checklist for the Northern Cape
  • Soft rot of squash fruits
  • Reed sweet grass (Glyceria maxima)
  • Lantana root-feeding flea beetle
  • Gall rust fungus on stink-bean
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PPRI News No 113 – October 2018-March 2019

  • ARC Training Centre of Excellence for Tuta absoluta, fall armyworm and maize lethal necrosis disease
  • Biocontrol agent released against Tradescantia fluminensis
  • Biological control and management of Parthenium weed
  • National Collection of Insects
  • How to detect plant pathogenic bacteria
  • Lady beetle wreaks havoc on invasive yellow-bells
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