Abstract:

Sensitivity detection of rice blast fungi isolates to Armure from different areas of Heilongjiang Province was measured by mycelium growth rate method. The results showed that there existed differention to the pesticide among the strains, inhibitory ratio from 35.31% to 62.39%. The growth speed of different isolates which coming from different area or same area. So much as in the same physiologicalrace all had discrepancy. The research showed that the insecticide resistance to Armure had emerged in part of the isolates.