European Journal of Plant Pathology (2016) 144, 337-343

Yong Wang, Ya-Bing Duan and Ming-Guo Zhou (2016)
Baseline sensitivity and efficacy of fluazinam in controlling Sclerotinia stem rot of rapeseed
European Journal of Plant Pathology 144 (2), 337-343
Abstract: Baseline sensitivity of Sclerotinia sclerotiorum to fluazinam was determined using 150 isolates collected during 2011 and 2013 from the rapeseed fields without a previous history of fluazinam usage in Jiangsu province of China. The median effective concentration (EC₅₀) values for fluazinam inhibiting mycelial growth on agar plates ranged from 0.0019 to 0.0115 μg/mL (mean of 0.0069 μg/ml). Neither cross-resistance between fluazinam and carbendazim or dimethachlon was detected. None of the tested isolates displayed reduced sensitivity to fluazinam. On detached rapeseed leaves and pot experiments, fluazinam at 150 μg/ml provided over 80 % control efficacy and exhibited excellent protective activity. In field trials, fluazinam at 187.5 g a.i. ha^-1 provided over 70 % control efficacy, higher than other traditional fungicides, suggesting excellent activity against Sclerotinia stem rot (SSR). These results suggest that fluazinam has strong antifungal activity and could be a good alternative fungicide to carbendazim or dimethachlon in controlling Sclerotinia stem rot.
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Link to article at publishers website
Database assignments for author(s): Ming-Guo Zhou, Yabing Duan

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Sclerotinia sclerotiorum	Rape/canola (Brassica napus)	China (NE)