Toxicity Test of Twenty Kinds of Bio-fungicides to Three Kiwifruit Canker Pathogens
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2018年21
- Page:
- 54-59
- Research Field:
- Publishing date:
Info
- Title:
- Toxicity Test of Twenty Kinds of Bio-fungicides to Three Kiwifruit Canker Pathogens
- Author(s):
- WANG Rui1; LEI Jiqing1; ZHA Shilian2; WU Wenneng1; SHEN Biyan2; LIU Xiaofang1
- (1.Food and Pharmaceutical Engineering Institute,Guiyang College,Guiyang,Guizhou 550003;2.The Agricultural Integrated Service Center of the People′s Government of Pianpo Bouyei Nationality Township,Wudang District,Guiyang,Guizhou 550018)
- Keywords:
- kiwifruit canker; Pseudomonas syringae pv.actinidiae; natural fungicides; toxicity test; co-toxic cvefficiet
- PACS:
- -
- DOI:
- 10.11937/bfyy.20180997
- Abstract:
- Three Pseudomonas syringae pv.actinidiae were taken as target bacteria,the toxicity of 20 kinds of bio-fungicides to three Pseudomonas syringae pv.actinidiae was studied by using inhibition zone method and potted controle efficiency,in order to supply references for kiwifruit canker prevention.The results showed that there were significant differences of toxicity of the twenty fungicides on three pathogenic bacteria,of which there were significantly effective on the virulence of 3 pathogens by the treatment of 500 million spore per gram Pseudomonas fluorescens WP,6% Cytosinpeptidemycin WP,12% Zhongshengmycin WP,and the EC50 values were 5.12,6.06,8.15 μg·mL-1;8.18,12.34,10.28 μg·mL-1 and 14.11,15.98,10.33 μg·mL-1,which were better than 72% streptomycin sulphate.The toxicity for PSA1,PSA2 and PSA3 by balanced mix Pseudomonas fluorescens and Cytosinpeptidemycin were obviously enhanced or added.However,the toxicity for 3 pathogens by balanced mix Cytosinpeptidemycin and Zhongshengmycin was declined.In addition,the combined virulence for 3 pathogens by balanced mix Pseudomonas fluorescens,Cytosinpeptidemycin and Bronopol were obviously enhanced.
Last Update: 2018-12-19