AgPest Alert – 18 December 2018

Be alert for yellow bristle grass

Region: Northland, Auckland, Waikato, BOP, Taranaki

Apply herbicides to yellow bristle grass before seed heads ripen. Avoid moving stock from infested to clean paddocks – seeds can survive in dung.

Don’t make hay from paddocks heavily infested with yellow bristle grass or other summer growing grass weeds – the seeds survive in hay. In contrast, yellow bristle grass seeds do not survive in well-made silage and wrapped baleage.


Look for porina flights

Region: Waikato, Hawkes Bay, Taranaki, Manawatu-Whanganui, Wellington, Nelson-Tasman, Marlborough, Canterbury, West Coast, Otago, Southland.

Look for and note porina flights as these can indicate when to adopt control measures later if required.


Remain vigilant for velvetleaf

Region: All NZ

Velvetleaf seed was introduced to NZ as a contaminant of some fodder beet seed and planted in many properties throughout NZ. Therefore, if you have either grown fodder beet or received fodder beet onto your property you need to be vigilant and keep an eye out for this weed and do not let it establish on your property. Velvetleaf is a declared Unwanted Organism by MPI and occurrences must be reported and dealt with. For more information phone the MPI hotline 0800 80 99 66 or go to MPI or AgPest, or contact your regional council.


Social tagging: > > > > > > >

Comments are closed.