Sensitivity of Kansas Isolates of <i>Sclerotinia homoeocarpa</i> to Boscalid

Fig. 4. Percent relative disease severity values in greenhouse assay for 26 isolates of Sclerotinia homoeocarpa inoculated onto plants treated with boscalid at 0.45 (A), 0.11 (B), or 0.03 (C) mg a.i./ml compared to in vitro log10EC50 values of those isolates. To determine in vitro log10EC50 values isolates were tested at concentrations ranging from 0.00024 to 4.0 µg/ml. Percent relative disease severity in greenhouse inoculations was calculated as the ratio of the disease severity in fungicide treatment to disease severity in the untreated control multiplied by 100. Correlations between percent relative disease severity and in vitro log10EC50 values were not significant (P > 0.05) for any concentration of boscalid.

Image from Plant Health Progress article:
Sensitivity of Kansas Isolates of Sclerotinia homoeocarpa to Boscalid