PPRI News No 118 – December 2021

  • YourSoilTM – Complete soil health package using biotic and abiotc indicators
  • Polymorphomyia basilica Snow (Diptera: Tephritidae), a new biological con-trol agent against Chromolaena odorata R.M.King & H.Rob. (Asteraceae) in South Africa
  • Biocontrol mass-rearing facility open day at PHP Roodeplaat
  • The big-headed Mexican sunflower Tithonia tubaeformis (Asteraceae) is rapidly expanding its distribution in South Africa
  • Nematodes associated with crop seeds
  • Post-fire seedling emergence and survival of Acacia longifolia and A. pyc-nantha under long-term biological control in South Africa
  • FAW strains investigated
  • Seed treatment to control soilborne diseases in field crops
  • ARC-PHP shares research findings on Fall armyworm, [Spodoptera frugiperda (JE Smith), (Lepidoptera, Noctuidae) with other countries in the SADC region
  • The role of certain mortality factors in the underperformance of Aristaea thalassias (Meyrick) as a biological control agent of Australian myrtle Leptospermum laevigatum F. Muel.
  • Continuation of the standards of generally recognised accounting prac-tice (GRAP) activities in the National Collection of Fungi
  • The establishment of two weed biocontrol agents
  • New book on control of alien invasive hakea

PPRI News No 117 – August 2021

  • Release of the moth, Evippe sp. #1, for the control of invasive Prosopis species; the first mesquite biocontrol agent not limited to seed destruction in Africa
  • Commercialization of strains from the National Collection of fungi
  • Developing soil health management strategies for black commercial farmers
  • Overwintering sites of Fall Armyworm (FAW) mapped
  • ARC-PHP Biosystematics receives the NSCF Collection Management & Conservation Manual
  • Importation of a flower-feeding moth as a biocontrol agent against pompom weed
  • OIE approved laboratory confirms Bacteriology AFB results
  • Report, detection and survey of Phytophtora palmivora Butler on Carica papaya L. from production regions in Mpumalanga Province
  • ARC hosts national training event on five transboundary pests and diseases for DALRRD
  • IUCN Red List of South African spiders included in the Species Environ-mental Assessment Guidelines
  • ARC-PHP Weeds Research Division: Progress Report 2018-2021
  • Mycology Diagnostics supports agriculture by characterising important plant pathogenic strains
  • Progress on the FAO FAW Farmer Field School
  • A quarantine nematode found on “String of pearls”
  • Bacterial diseases unit seed testing services

PPRI News No 116 – September 2020

  • Outbreaks of the brown locust, Locustana pardalina, reported from the Karoo
  • NEW Diagnostic Seed Health Test Available
  • PHP hosts the FAO and DALRRD to hand over equipment for control of fall armyworm
  • Uncovering the hidden treasure in the Rhizobia Collections
  • Entomologist called as expert witness in court case
  • Identity of quarantine nematode confirmed
  • Invasive cacti in South Africa: their identification and control
  • Fungus that causes disease of papaya newly detected in South Africa
  • Thirty continuous years of post-release evaluations of the gall rust fungus
  • Monitoring of aphid populations continues unabated
  • The balloon vine rust (Puccinia arechavaletae) establishes in South Africa
  • The value of collaboration
  • Geo-referencing of localities linked to specimens in the national collection of fungi
  • New species of leafhopper associated with rooibos tea
  • Advances in Characterization of Rhizobia from the SARCC Collection
  • Researcher receives award for review of manuscript
  • Sixty year old slides discovered of first plant-parasitic nematode species described in South Africa
  • Study shows that Fusarium oxysporum species complex populations in the South African grassland biome are genetically diverse
  • The Elderberry Dilemma

PPRI News No 115 – May 2020

  • FAO recognises ARC-PHP as centre of excellence for training
  • VIRIDI®ELISA KITS – TIA matchmaking event winner
  • Saving a World Heritage Site from Lantana
  • New alien invasive beetle in Europe
  • Emergence of Pythium as highly virulent pathogen
  • Relationship between ARC and Du Roi Laboratory strengthened
  • Spider diversity on the rise
  • The emergence of novel strains of bacteria that nodulate and fix nitrogen in legumes
  • New species found in mouldy dogfood
  • Eccentric man’s orphaned collection boosts value of SANC
  • Avicides applied over migratory quela birds
  • Fungi on olive trees surveyed
  • Important plant pathogenic genus, Fusarium, surveyed in South African soil
  • ARC-PHP participated at Virology Africa 2020
  • 13th Colloquium of the African Arachnology Society
  • New blight species reported from imported nectarines
  • New book on invasive alien plants launched
  • First report of the dagger nematode, Xiphinema oxycaudatum, from South Africa
  • New species of anthracnose recorded on papaya in South Africa
  • A first checklist of macrofungi for South Africa

PPRI News No 114 – September 2019

  • ARC-PHP launches locally produced ELISA kits for testing viruses
  • ARC Systematists attend national forum
  • Virology researcher lands coveted invitation to global grand challenges
  • Accredited training on control of fall army worm
  • Collaboration with Victus Bio (pty)
  • ARC-PHP Cedara hosts delegation from eSwatini to discuss the manage-ment of invasive alien plants
  • Biosystematics open day
  • Four new spider species described
  • The return of the lantana mirid, Fal-conia intermedia, to the mix
  • First report of soft rot of squash fruits caused by Pseudomonas
  • 22nd Symposium of the Nematological Society of Southern Africa
  • New leafhopper species described
  • Two PHP weeds researchers attended the 27th Asian-Pacific Weed Science Society Conference in Malaysia
  • Insect Ecology wins Best GDARD poster award
  • Potatoes SA Prize for best poster
  • From PDP to PhD: The nematode fauna of the Telperion nature reserve
  • Women in science award winner
  • PhD degree in Entomology
  • Technology Transfer

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

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 *

PPRI News No 111 – October 2017-March 2018

New scale insect pest of macadamias * Tortoise beetle damaging sweet potato * Lantana blister rust fungus * Introducing agricultural acarology * Freeze-dried fungal cultures * Mexican beetles for biocontrol of red sunflower (Tithonia rotundifolia) * Collection and curation of insect specimens * Seed-attacking weevil for biocontrol of balloon vine * New nematodes *

PPRI News No 110 – April 2017-September 2017

Impact of the Carrot Cyst Nematode on carrot production * Acacia longifolia in Grahamstown * Protecting the South African wine industry * Beekeeping technology transfer * Biological control of Parthenium * Oyster mushroom farming * Faith of a bugweed seed * Rodent science * Showcasing weeds research * Management strategies for tomato leaf miner *

PPRI News No 109 – October 2016-March 2017

Asian woolly hackberry has spread to South Africa * Valuable findings from herbicide trials on pompom weed * Could drought explain declining populations of a Chromolaena biocontrol agent * Diagnostic laboratories registered with Department of Agriculture * Soilborne Plant Disease Interest Group * ARC-PPRI living fungal culture collection * Reed meadow grass (Glyceria maxima) * Beekeeping development * Gall-forming tephritid fly * Lady beetle established on yellow-bells on South Coast *