Plant extracts were efficient, safe bio-control stuff. In this paper we used two kinds of plant extracts, Eugenol and Baicalein, to against Colletotrichum gloeosporioides and Agaricodochium camellia by growth rate method. The results show that the inhibition effects of eugenol and baicalein were increasing as the rising concentration form 0 to 200ug/ml. The EC50 of eugenol against Colletotrichum gloeosporioides and Agaricodochium camellia were 30.37ug/ml and 51.55ug/ml respectively, the EC50 of baicalein against Colletotrichum gloeosporioides and Agaricodochium camellia were 61.26ug/ml and 49....
