PURPOSE: To provide the titled controlling agent effective to the plant blights such as rice blast, bacterial leaf blight of rice, bacterial spot of cucumber, etc., and free from phytotoxicity, by using an oxathiazine derivative as an active component.
CONSTITUTION: The objective agent contains one or more oxathiazine derivatives of formula (R1 is H, 1W10C straight or branched alkyl, aliphatic acyl residue, or phenyl; R2 is H 1W10C straight or branched alkyl, or phenyl; R1 and R2 may together form substituted or unsubstituted cycloaliphatic or aromatic ring group) as active component. It can be applied as it is, or by diluting with water, solid powder or other proper carrier, and if necessary mixing with an adjuvant such as extender, etc. Rate of application; e.g. 2W10kg of granules or powder per 10 are for the control of blight of rice in paddy rice field.
SEKI MASAO
IWATA MICHIAKI
WATANABE TETSUO
