Abstract:

Rice blast is one of the most serious diseases in rice production, and precise monitoring and predicting on the occurrence and epidemic condition of rice blast is the basis of effective disease prevention and control. In this paper, present status of rice blast monitoring and prediction was analyzed from three aspects of application bacteria information, meteorological information and rice canopy spectral information. Problems and difficulties concerning with different methods of monitoring and prediction were summarized. Based on the above analysis, the method of establishing disease epidemic risk assessment system applying multi-source information relative with blast occurrence was put forward from the perspective of system research. The study can advance the precision of rice blast monitoring and prediction and also give references to other diseases monitoring and prediction.