Zhiyu Yu, Stephen E Strelkov, Sheau-Fang Hwang
Clubroot, caused by Plasmodiophora brassicae , is an important disease of canola ( Brassica napus ). Amisulbrom, a quinone inside inhibitor (QiI), was evaluated for its effectiveness in clubroot management in Alberta, Canada. Resting spores of P. brassicae were treated in vitro with 0, 0.01, 0.1, 1, and 10% ( w / v ) amisulbrom to determine its effect on spore germination and viability. Amisulbrom inhibited resting spore germination by up to 79% and reduced viable spores by 31% relative to the control. Applications of a liquid solution (AL1000, 1000 g active ingredient (ai) ha-1 ) and granular formulations (AF700, 700 g ai ha-1 ; AF1000, 1000 g ai ha-1 ; AF1500, 1500 g ai ha-1 ) of amisulbrom were tested on the canola cultivars '45H31' (clubroot-susceptible) and 'CS2000' (moderately resistant) under greenhouse conditions and in field experiments in 2019 and 2020...
December 21, 2023: Plants (Basel, Switzerland)