Screening of the Botanical Fungicides

The inhibitory effects of crude extracts from Chinese medicine herbs,vegetables and ornamental plants on Colletotrichum gloeosporioides,Rhizoctonia solani,Alternaria,Phomopsis,Fusarium oxysporumf,Fusarium solani,Sclerotium,Pestalotiopsis,Bipolaris,Peronophythora litchi were studied with the method of plate addition in this study.Our results suggested that garlic crude extracts inhibites the growth of all the tested funguses and the best inhibitory effects on Colletotrichum.gloeosporioides,Peronophythora litchi and Sclerotium were 100%.Meanwhile,the decoction of coptis also had 100% inhibitory effect on Peronophythora litch.and the juices of Mangnolia officinalis,Allium tuberosum,Allium fistulosum and marigold also had some inhibitory effects on tested funguses.