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Weed Biocontrol articles

  1. First ever release of Chilean needle grass rust for biocontrol

    We are excited to report that we have completed the world’s first release of a fungal pathogen biocontrol agent for an invasive grass: the Chilean needle grass rust (Uromyces pencanus). Chilean needle grass (Nassella neesiana) is a perennial, tufted grass native to South America. It forms dense clum...

  2. Accidental introduction of cleavers mite

    Increased global trade and international travel have facilitated the accidental introduction of numerous exotic species into New Zealand, and that number is growing every year. Introduced pest species such as varroa mites (Varroa destructor), Polistes spp. and Vespula spp. wasps, Argentine ants (Lin...

  3. Honolulu rose: a potential new target for weed biocontrol in the Pacific

    Honolulu rose (Clerodendrum chinense) is a subtropical perennial shrub native to China, Taiwan, and Vietnam. Its attractive and fragrant flowers have seen it favoured as a garden ornamental throughout subtropical regions, but it has gone on to become invasive, particularly in the Pacific. Honolulu r...

  4. Summer Activities

    Summer is a busy time for many biocontrol agents, so you might need to schedule the following activities. 

  5. Farewell to Hugh Gourlay

    In June, Hugh Gourlay, Senior Technician in our Biocontrol and Molecular Ecology team, retired after a remarkable 49 years.

  6. ISBCW is Coming to NZ in 2026!

    The International Symposium on Biological Control of Weeds (ISBCW) is the most
    important event for weed biocontrol scientists all over the world. The event provides
    an opportunity for participants to exchange updates on weed biocontrol research and
    work programmes, renew ties of friendship, develop ...

  7. Spring Activities

    Most biocontrol agents become active during spring, making it a busy time of year to check release sites and move agents around.

  8. A Literature Review to Narrow the Search

    A central principle of weed biocontrol programmes is that host-specific natural enemies will have co-evolved with their host plant within their native range. It follows that if there is uncertainty about the native range of a weed, then biocontrol practitioners may fail to prospect for candidate bio...

  9. Welcome to Our New Team Members

  10. New EPA Approvals

    Exciting news! We have five new release approvals from the Environmental Protection Authority (EPA).