There are increasing cases of herbicide-resistant grass weeds in New Zealand. Herbicide efficacy trials play a key role in understanding shifts in resistance....
Yellow bristle grass It is an extremely aggressive annual plant. Read the latest identification guide below....
Black grass is a serious pest weed in Europe and the UK, particularly because it is resistant to many herbicides, making it difficult to control. Black grass incursions have been identified in New Zealand several times in recent years. This Ute Guide outlines how to identify black grass and what to do if you think you have found it. ...
This Arable Extra discusses options for management of ryegrass weeds, with particular reference to herbicide resistance and integrated weed management....
Crop Action keeps you up to date with arable crop development and actions right across New Zealand....
Results of the 2021/22 FAR grass weed herbicide screening trial....
Vulpia hair grass (Vulpia spp.) can reduce yields of crops through competition and dressing losses, and can also contaminate seed lines, preventing export to some overseas markets....
A Lighter Touch have just published a useful resource outlining general principles for good management practices for growers using biopesticides....
Brome grasses, especially ripgut brome, are a significant weed in New Zealand arable systems, with cereals being particularly affected....