Isolation and Identification of 2 Fungal Diseases of Dendrobium Huoshanense and Selection of Antibacterial Agents
In order to improve the quality and output of Dendrobium huoshanense,The author surveyed Dendrobium huoshanense in many places of Huoshan County since 2018,we found that the stem disease of Dendrobium huoshanense is mainly southern sclerotium blight,leaf disease mainly for anthrax,these two diseases had great influence on the quality and output of Dendrobium huoshanense.We collected typical fresh pathogenic strains as samples,research by Koch's postulation and morphological observation and molecular biological identification showed that the pathogenic bacterium of southern sclerotium blight was Athelia Rolfsii that Sexual state of Sclerotium Rolfsii Sacc.;The pathogen of anthrax is Colletotrichum cameliae.We also measured indoor bacteriostatic effects of 12 kinds of insecticides for preventing and controlling southern sclerotium blight and anthrax,and we found that the inhibition effect of pyraclostrobin 25％SC,difenoconazole 37％WG,ethylicin 80％EC on mycelia growth is the best.Difenoconazole 37％WG,ethylicin 80％EC on anthracnose pathogen mycelial growth inhibition effect is best.At present,there are no reports about the identification of pathogenic bacteria and prevention and control agents of Dendrobium huoshanense.This paper provides a theoretical basis for green prevention and control in the cultivation of Dendrobium huoshanense.
Dendrobium huoshanensesouthern sclerotium blightpathogenisolation and identificationantimicrobial agents
万方数据
维普
