Response of cranberry and kidney beans to linuron

Abstract

ABSTRACT. One week after emergence (WAE), linuron applied PRE caused 0.4% to 1.2% injury in "Etna", "Hooter", "SVM Tayler", and "Capri" cranberry bean and 3.1% to 3.6% injury in "Red Hawk", "Pink Panther", "Calmont", and "Majesty" kidney bean. At 2 and 4 WAE, there was no difference in injury among the dry bean cultivars. Contrast comparing injury due to linuron in cranberry vs kidney bean cultivars indicated 2.3%, 1.7%, and 1.2% greater injury in kidney bean compared to cranberry bean at 1, 2, and 4 WAE, respectively. Linuron PRE caused slightly greater injury in kidney bean compared to cranberry bean but crop injury was minimal with no adverse effect on plant height, shoot dry weight, seed moisture content, and yield under the environments evaluated. Based on this research, linuron applied PRE at the proposed rate of 1125 g·ai·ha −1 can be safely used in cranberry and kidney beans in Ontario.

Weed Management in Kidney Bean with Tank Mixes of S-Metolachlor, Imazethapyr and Linuron

“…ha −1 did not have any adverse effect on the yield of cranberry and kidney bean [22]. In another study, linuron applied PRE at various doses did not cause any adverse effect on the yield of cranberry, kidney and white beans but yield of black bean was reduced 16% compared to the non-treated control at 2500 g•ha −1 [17]. Other studies have also shown that imazethapyr and s-metolachlor applied alone or in combination with other herbicides cause no reduction in yield of dry bean [3] [6] [18]- [21].…”

“…These results are similar to other studies that have shown less than 4% injury in kidney bean with linuron applied applied PRE at 1125 and 2250 g a.i. ha −1 [17]. Similarly, imazethapyr and s-metolachlor applied alone or in combination with other herbicides have been shown to cause minimal injury in dry bean with soil applied PRE herbicides including imazethapyr and s-metolachlor [3] [6] [18]- [21].…”