Pencycuron as a fungicide for sheath blight control in rice

Yangzhou pioneer chemicla CO.,LTD

Pencycuron is a newly developed fungicide having a specific activity against Rhizoctonia solani causing a number of important crop diseases. Pencycuron strongly inhibited hyphal development and its very stable persistence providing lasting prevention against the fungal infection from tillering to ripening of rice. This characteristic property of pencycuron could be utilized to obtain the optimum control of the disease by earlier application, already at the time of horizontal spreading of sheath blight. Pencycuron provided high effectiveness also by aerial applications of LV- and ULV-spray as well. Pencycuron is essentially a contact fungicide. The majority of the applied substance in plant was retained as a parent form. The persistency and little mobility are likely related to a long lasting efficacy in the disease control. The high selectivity to Rhizoctonia solani with low potential activity to other organisms has the advantages of a high degree of safety to users, less hazard to the environment, and favorable plant-compatibility with various kinds of crop