In order to find out the difference in the efficacy of the commonly used rice blast control agents,7 fungicides were used as test objects,and the field control efficacy of rice blast was evaluated in accordance with the guidelines for field efficacy trials of pesticides.The results showed that all the 7 fungicides tested had a certain control effect on rice blast,among which azoxystrobin 40％WP,tricyclazole 75％WP and difenoconazole·azoxystrobin 32.5％SC had a better control effect on rice blast,with the control effect exceeding 80％.It is worth noting that isoprothiolane·tebuconazole 30％SC had a certain inhibitory effect on rice growth,causing difficulty in rice heading.These results provide a scientific reference for the chemical control of rice blast.
维普
万方数据