Sensitivity of Sclerotinia sclerotiorum to fludioxonil: In vitro determination of baseline sensitivity and resistance risk

Control ofSclerotinia sclerotioruminfection in oilseed rape with strobilurin fungicide SYP-7017

“…For each plate, the EC 50 values were calculated by measuring the average colony diameter in two perpendicular directions. In the present study, the EC 50 values were calculated by regressing percentage growth inhibition against the log of fungicide concentration (Kuang et al 2011). Each concentration has three replicates and the test was repeated twice.…”

“…In practice, application of foliar fungicides is still the main method in most oilseed rape crops for controlling the disease. A benzimidazole fungicide, carbendazim (MBC), which has been used for control of Sclerotinia stem rot in China for more than 30 years, was demonstrated to be ineffective (Kuang et al 2011). A point mutation in the β-tubulin gene (E198A) in resistant isolates of S. sclerotiorum was identified as the resistance mechanism of the fungus to benzimidazole fungicides in the field (Li et al 2003).…”

“…de Bary, a ubiquitous plant pathogenic fungus, can infect more than 400 species of cultivated plants worldwide, such as sunflower, carrot, lettuce, soybean, canola and oilseed rape (Brassica napus L.) (Wang et al 2009). Leaves, stems and pods at different developmental phases can be infected (Kuang et al 2011). In many countries, such as Canada, USA, Australia and China, the disease caused by S. sclerotiorum is destructive (Bardin & Huang 2001;Bolton et al 2006;Kuang et al 2011).…”

“…Leaves, stems and pods at different developmental phases can be infected (Kuang et al 2011). In many countries, such as Canada, USA, Australia and China, the disease caused by S. sclerotiorum is destructive (Bardin & Huang 2001;Bolton et al 2006;Kuang et al 2011). For example, on the coast of Jiangsu province of China, Sclerotinia stem rot caused by S. sclerotiorum can reduce yield ranging from With expanding agricultural production, the rapeseed industry in China occupies over 7.5 million hectares at present, producing an annual crop valued at nearly $5 billion.…”

Suppressive soil againstSclerotinia sclerotiorumas a source of potential biocontrol agents: selection and evaluation ofClonostachys roseaBAFC1646

“…This fungus survives in soil in the form of sclerotia, which germinate myceliogenically or carpogenically depending on environmental conditions (Bardin & Huang, 2001). Recurrent fungicide application has led to fungicide resistance in S. sclerotiorum populations (Gossen, Rimmer, & Holley, 2001;Kuang, Hou, Wang, & Zhou, 2011). Consequently, the approach of biological control has become an attractive potential means of reducing the incidence of Sclerotinia diseases (e.g.…”