Toxicity determination of Twenty-two antibiotics against oear fire blight and its safety evaluation on floral organ
[Objective]This research aims to screen out antibiotics that can effectively control Erwinia amylovora in the hope of providing technical support for the green safety prevention and control of the disease.[Methods]22 kinds of antibacterial agents and preparations were screened in the laboratory using bacterio-static circle,and then the safety on floral organ of Korla Fragrant Pear was evaluated.[Results]13 kinds of antibiotics had good antibacterial effect on Erwinia amylovora,and when the diameter reached 9 mm,the ef-fective concentration of chloramphenicol①,cefotaxime sodium for injection,ceftriaxone sodium for injection and norfloxacin from low to high in order were 5.30,7.60,9.88,11.64 mg/L,indicating that using the same dosage,the inhibitory effect of four antibiotics were stronger than those of other antibiotics;The floral organ of Korla Fragrant Pear suffered less injury when using the chloramphenicol①,cefotaxime sodium for injection,ceftriaxone sodium for injection,roxithromycin dispersible tablet and norfloxacin.[Conclusion]The selected chloramphenicol ①,norfloxacin,ceftriaxone sodium for injection and cefotaxime sodium for injection can be used in the field to control Erwinia amylovora in fields.
Erwinia amylovorabacteriostatic circletoxicity test in the labsafety evaluation
万方数据
维普
