噁唑菌酮·霜脲氰对烟草黑胫病病菌的室内毒力及田间防效

China Plant Protection(2020)

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Abstract
为明确52.5%噁唑菌酮·霜脲氰水分散粒剂对烟草黑胫病的防治潜力,采用菌丝生长速率法测定了该药剂对贵州省不同烟区烟草黑胫病菌的室内毒力,并在德江烟区开展田间试验,调查了包括噁唑菌酮·霜脲氰在内的5种药剂对烟草黑胫病的防效.结果 表明,来自德江烟区的烟草黑胫病病菌对噁唑菌酮·霜脲氰的敏感性最强,EC50为1.344 1 mg/kg;52.5%噁唑菌酮·霜脲氰水分散粒剂的田间防效最佳,达91.52%,显著高于其他对照药剂.另外,该药剂还有促进烟株生长的作用.
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