1. Bactericidally and fungicidally effective

2. Fungicidally and Bactericidally active novel acylated saccharins of the formula ##STR1## in which X is oxygen or sulphur and

3. A method for controlling fungal and/or bacterial disease wherein said method comprises applying to a plant that is infected with a fungal and/or bacterial disease a composition comprising a fungicidally and/or Bactericidally effective amount of a heavy metal chelate in an aqueous solution, wherein the heavy metal chelate has low or no phytotoxicity to plants, wherein the

4. The present invention provides an at least quaternary composition for controlling insects or representatives of the order Acarina and microorganisms, which composition comprises: (A) an insecticidally effective amount of at least one neonicotinoid or phenylpyrazole insecticide, and (B) a fungicidally effective amount of at least three fungicides including: (B1) at least one phenylamide (acylalanine type), (B2) at least one phenylpyrrole and (B3) at least one triazole.

5. Fungicidally and Bactericidally active novel acylated saccharins of the formula ##STR1## in which X is oxygen or sulphur and R is --CO--R 1 or --SO 2 --OR 2 , R 1 is alkyl, halogenalkyl, alkoxy, halogenoalkoxy or alkylthio, or is optionally substituted aryl, aryloxy or arylthio, cycloalkoxy or --NR 3 R 4 , R 2 is alkyl or phenyl, R 3 is alkyl, and R 4 is alkyl, phenyl, halogenoalkylthio