Inhibition of disease development in strawberry flowers inoculated with a mixture of Botrytis cinerea conidia and chitosan (DPn 206) and/or synthetic fungicides.

Disease development was scored as development of visual necrotic regions under the inoculation point up to eight days after inoculation and is quantified as the area under the disease progress curve (AUDPC). The protection index was calculated on the basis of the AUDPC values.aAll data are the mean of two experiments ± standard deviation with 6×3 flowers in each treatment.bThe AUDPC was used to calculate the protection index.cConidia in sterile water.dRecommended dose.