申请人:Mitsui Toatsu Chemicals, Incorporated
公开号:US05240951A1
公开(公告)日:1993-08-31
Application of a rice blast control agent containing an isothiazolecarboxylic acid derivative of the below-described formula, which shows excellent activity against rice blast (Pyricularia oryzae) in rice cultivation, to the water surface of a paddy rice field results in the absorption of the derivative through roots of rice plants, so that the resistance of the rice plants can be enhanced. ##STR1## wherein R.sup.1 and R.sup.2 independently mean a hydrogen or halogen atom or a particular group, and Y stands for an OR.sub.3 group (R.sup.3 being a hydrogen or alkali metal atom or a particular group), an NHR.sup.4 group (R.sup.4 being a hydrogen atom or a particular group), or a morpholino group.
将含有以下描述的公式的异硫唑羧酸衍生物的水稻稻瘟控制剂应用于稻田水面,对水稻种植中的稻瘟(水稻纹枯病菌)表现出优异活性,导致衍生物被水稻植株的根吸收,从而增强水稻植株的抗性。其中R.sup.1和R.sup.2分别表示氢原子或卤素原子或特定基团,Y代表OR.sub.3基团(R.sup.3为氢原子或碱金属原子或特定基团),NHR.sup.4基团(R.sup.4为氢原子或特定基团)或吗啡基团。