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Weed Biocontrol newsletter
Weed Biocontrol articles
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Issue 107, February 2024
Issue 106, November 2023
Issue 105, August 2023
Issue 104, May 2023
Issue 103, Feb 2023
Issue 102, November 2022
Issue 101, August 2022
Issue 100, May 2022
Issue 99, February 2022
Issue 98, November 2021
Issue 97, August 2021
Issue 96, May 2021
Issue 95, February 2021
Issue 94, November 2020
Issue 93, August 2020
Issue 92, May 2020
Issue 91, February 2020
Issue 108, May 2024
Issue 109, August 2024
Issue 110, November 2024
Issue 111, February 2025
Issue 112, May 2025
Issue 113, August 2025
Issue 114, November 2025
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2020
Still Searching for Woolly Nightshade Agents
3 September 2024
During early summer last year our collaborators, Nic Venter and Blair Cowie from the University of the Witwatersrand (Wits) in South Africa, along with Holly Cox (Auckland Council), undertook a survey for the natural enemies of woolly nightshade in Uruguay.
Newsletter
Weed biocontrol
New Team Members
14 June 2024
Welcome Hester Williams and Anna Vaughan
Newsletter
Biocontrol Training for Kaitiaki
14 June 2024
In early April, Science Team Leader Angela Bownes and Senior Researcher Ronny Groenteman ran an introductory weed biocontrol workshop for mana whenua kaitiaki from the Tāmaki Makaurau / Auckland region.
Newsletter
Weed biocontrol
Old Man’s Beard Pathogens
14 June 2024
The old man’s beard (Clematis vitalba) weed biocontrol project started in the early 1990s, when a fungal pathogen (Phoma clematidina), sourced from another Clematis species (Clematis ligusticifolia) in the USA, was released in New Zealand. While this pathogen initially caused significant damage to o...
Newsletter
Weed biocontrol
Revisiting Broom Gall Mite Release Sites
14 June 2024
Monitoring the effectiveness of weed biocontrol agents is essential, but it can be neglected. Understandably, stakeholders tend to prefer to invest in new projects rather than make room in tight budgets for expensive, high-quality evaluation studies. To help solve this investment conundrum, here in ...
Newsletter
Weed biocontrol
A First for Tuvalu
14 June 2024
With assistance from MWLR’s Natural Enemies - Natural Solutions (NENS) programme, Tuvalu welcomed its first-ever natural enemy to control an invasive weed in April.
Newsletter
Weed biocontrol
Chilean Flame Creeper Beetle Passes the Test
28 February 2024
Chilean flame creeper is a climbing vine that has become an important environmental weed in Southland, Otago and Canterbury. It is present in the lower regions of the North Island, but it is only considered a minor weed there. A biological control programme was initiated in 2021 following the serend...
Newsletter
Weed biocontrol
Yellow Flag Iris Flea Beetle Touches Down
28 February 2024
With the new year a new candidate biocontrol agent arrived at our insect containment facility at Lincoln. Angela Bownes’s Christmas holiday in South Africa presented the opportunity for 34 adults of the yellow flag iris flea beetle to be hand-carried to New Zealand. The beetles are being reared by t...
Newsletter
Weed biocontrol
A Flying Start for a Bud-Galling Wasp
28 February 2024
We are excited to report that our most recently introduced biocontrol agent, the Sydney golden wattle bud-galling wasp, has shown positive signs of establishment following its release last summer.
Newsletter
Weed biocontrol
Variability in Herbivory Shows Patterns, and it Matters
28 February 2024
Interactions between plants and herbivores are central to most ecosystems, but the high variability of these interactions makes it difficult to determine exactly how herbivores influence plant response to herbivory pressures. A group of researchers from Michigan State University set out to explore t...
Newsletter
Weed biocontrol
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