sentence: dichlofluanid ( n - dichlorofluoromethylthio - n , n - dimethyl - n - phenylsulfamide ) is a fungicide used to protect strawberries , grape , berries , apple , pear and other fruit , vegetables and ornamental plants from diseases such as scab , black spot , leather rot , gray mold , downy mildew and others caused by the fungi botrytis , alternaria , sclerotinia , and monilinia .