To determine the sensitivity of Botrytis cinerea from greenhouses to boscalid and fludioxonil in Hebei Province,2425 isolates of B. cinerea from 8 cities from 2013 to 2016 were evaluated in vitro sensitivity to boscalid and fludioxonil by mycelial growth rate method. The sensitivity of B. cinerea from greenhouses of Hebei province to boscalid and fludioxonil was downtrend from 2013 to 2016. In 2016,all isolates collected from different regions showed similar sensitivities and a low level of resistance to bo...