To obtain a plant blight controlling agent effective not only for suppressing the onset of blight by a plant pathogen but also for ameliorating the symptom of blight, safe to human body and free from the application of load on the production environment of the plant, and provide a plant blight controlling method using the agent.
A low-molecular chitin having a number-average molecular weight of 3,000-50,000 and produced by hydrolyzing a chitin is used as an active component of the plant blight controlling agent. The agent is preferably usable for suppressing the onset of clubroot and/or chlorosis. The plant blight controlling agent is preferably applied to the seedling of the plant. It is also preferable to apply the agent to a plant affected by clubroot.
COPYRIGHT: (C)2005,JPO&NCIPI
Hiroaki Okada
Takanobu Yoshida
Yoshiharu Matahira
Shinji Toyoda
Yaizu Suisan Chemical Industry Co., Ltd.
| JP8157310A | ||||
| JP8175892A | ||||
| JP9157650A | ||||
| JP4069305A |