Skip to content
Manaaki Whenua
Landcare Research
Publications
News
Events
About us
Contact us
Discover our research
Highlights
Research projects
Biodiversity
Discovering, protecting and restoring our precious taonga
Learn more
Related science
Plants, invertebrates, fungi & bacteria
Species & ecosystem conservation
Biosecurity
Protecting New Zealand from invasive biological threats
Learn more
Related science
Weed management
Animal pest management
Ecosystem resilience
Invasive invertebrates
Land
Helping to manage our land and water resources wisely
Learn more
Related science
Erosion & sediment
Land & soil resources
Soil & ecosystem health
Environment
Enabling New Zealand to make better environmental decisions
Learn more
Related science
Climate action
Climate change & greenhouse gases
Sustainable society & policy
Partner with us
Information for...
Iwi & Māori partners
Government & policy makers
Local & regional councils
Primary industries
Our science portfolios
Biota
Characterising land resources
Climate change adaptation & mitigation
Managing land and water
Plant biosecurity & biodiversity
Society, culture & policy
Wildlife management & conservation ecology
Our capabilities
Science & mātauranga Māori
Business solutions
Toitū Envirocare
EcoGene: DNA-based diagnostics
Laboratories & diagnostics
Tools & resources
Get involved
NZ Garden Bird Survey
Survey of Rural Decision Makers
NZ Colony Loss Survey
Education
Teaching resources
Get involved
Identification
What is this bug?
Algae
Invertebrates
Plants
Fungi
Resources
National collections
Data & Databases
Mapping
Search
Search for…
within
All content
Events
Factsheets
Identification tools
Innovation stories
Laboratories
Maps
Media Releases
National Collections
News
Newsletters
People
Projects
Projects news
Publications
Research
Resources
Science portfolios
Tools
Search
Home
Publications
Weed Biocontrol
Weed Biocontrol articles
Back
Latest issue
Remembering Robin van Zoelen
It is a Numbers Game for the Field Horsetail Weevil
Tackling Moluccan Albizia for the Pacific
Summer Activities
The Old Man’s Beard Mite Has Finally Landed
Published
All
2021
2020
A Few Steps Closer With Nassella Tussock
8 August 2020
Just less than a year ago we revived efforts to search for effective fungal biocontrol agents for nassella tussock, and we are pleased to report that we have already made significant headway.
Newsletter
Weed biocontrol
Hieracium Biocontrol – 20 Years on
8 August 2020
Hieracium ([Hieracium] and [Pilosella] species) or hawkweeds, are perennial herbs in the plant family Asteraceae that have dandelion-like yellow flowers. They are serious pasture weeds in New Zealand that form dense mats of tight, interconnected rosettes, with thick underground root systems. Hieraci...
Newsletter
Weed biocontrol
Three for the Price of One in Chile
8 August 2020
Chantal Probst, our plant pathology technician, and Randall Milne (Environment Southland), travelled to Chile in November last year to collect starter cultures of the Darwin’s barberry rust (Puccinia berberidis-darwinii) and pampas floral smut (Ustilago quitensis). As is often the case, to maximise ...
Newsletter
Weed biocontrol
Buddleia Be Gone!
8 August 2020
Buddleia (Buddleja davidii) is native to China and is a serious weed in plantation forests, natural habitats and riparian areas in New Zealand, especially in the central North Island. Also commonly known as summer lilac or butterfly bush because of its showy, dense clusters of purple or white flower...
Newsletter
Weed biocontrol
Tale of the Scotch Thistle Gall Fly
8 August 2020
Scotch thistle (Cirsium vulgare) is one of the most common thistle weeds in New Zealand, being present in all regions of the country in a diversity of habitats. The weed is a prolific seed producer, with an average of 200 seeds per seedhead, and individual plants can produce over 50,000 seeds. Scotc...
Newsletter
Weed biocontrol
Spring Activities
8 August 2020
Most biocontrol agents become active during spring, making it a busy time of year to check release sites and move agents around.
Newsletter
Weed biocontrol
Who’s Who in Biological Control of Weeds?
8 August 2020
Alligator weed beetle
(Agasicles hygrophila)
Foliage feeder, common, often provides excellent control on static water bodies.
Alligator weed beetle
(Disonycha argentinensis)
Foliage feeder, released widely in the early 1980s, failed to establish.
Alligator weed moth
(Macrorrhinia endonephele)
...
Newsletter
Weed biocontrol
Further reading & agents released table
8 August 2020
Gavin Loxton (left) and Lindsay Smith (right) at a Canterbury hieracium biocontrol site
Further reading Clarkson B, Paynter Q, Winks C, Bartlam S, Watts C, Thornburrow D 2019. Best-practice guidelines for managing Tradescantia threats to native biodiversity. A research collaboration between BioHeri...
Newsletter
Weed biocontrol
A message from the Editor
5 May 2020
The Weed Biocontrol team at Manaaki Whenua is fortunate to have been able to continue its work during the Covid-19 pandemic. For readers outside of New Zealand, we went into very strict Level 4 lockdown on 26 March for nearly 5 weeks and at the time of writing are in Level 3 (we are now currently at...
Newsletter
Weed biocontrol
Moths away on horehound!
5 May 2020
A little more than a year after the release of the clearwing moth (Chamaesphecia mysiniformis) and the plume moth (Wheeleria spilodactylus) for the biocontrol of horehound (Marrubium vulgare), it was time to return to the release sites to look for early signs of establishment. “We were especially en...
Newsletter
Weed biocontrol
Prev
1
2
3
4
5
Next