ABSTRACT Although New Zealand is developing an increasing number of herbicide-
resistant weed populations, it has a much lower incidence of herbicide resistance than …

Herbicide-resistant weeds are serious threats to agricultural production. Since a review
published in 1996, the number of different examples of weed biotypes developing resistance …

Herbicide resistance has repeatedly developed under intensive herbicidal weed
management regimes globally with 255 species having resistant biotypes. In New Zealand …

A population of buckhorn plantain with suspected resistance to 2, 4-D was identified in
central Indiana following 30 yr of 2, 4-D–containing herbicide applications. Our objectives …

Soliva sessilis is a troublesome annual weed species in New Zealand turfgrass. This weed
has been controlled selectively in New Zealand turfgrass for many years using pyridine …

The noxious weed yellow starthistle (Centaurea solstitialis L.) can be controlled effectively at
the seedling stage with foliar application of the auxinic herbicides picloram or clopyralid …

Research on maize weeds in New Zealand is extensive, but few systematic efforts were
made to catalogue weed species and determine their prevalence and abundance. Broadleaf …

Buckhorn plantain populations purportedly resistant to 2, 4-D were identified in
Pennsylvania following long-term, continual applications of the active ingredient to turfgrass …

Biotypes of nodding thistle (Carduus nutans) have developed within New Zealand that
require over six times the normal rate of MCPA, MCPB or 2, 4‐D to kill them. Radiolabelled …

Abstract Sweetpotato (Ipomoea batatas (L) Lam) plants are highly susceptible to weed
competition during their early field establishment period For a long time the contact …