Journal of Northern Agriculture ›› 2022, Vol. 50 ›› Issue (3): 73-80.doi: 10.12190/j.issn.2096-1197.2022.03.10

• Plant protection·Horticulture • Previous Articles     Next Articles

Laboratory toxicity test of eight fungicides to canola Sclerotinia sclerotiorum in Hulun Buir

ZHAO Lili1,2, MENG Hao1, GUO Chen3, SONG Peiling3, YANG Yongqing3, LI Ziqin1,3   

  1. 1. College of Life Science,Inner Mongolia University,Hohhot 010021,China;
    2. Tenihe Farm Co. Ltd.,Hulun Buir State Farm,Hailar 021008,China;
    3. Institute of Plant Protection,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China
  • Received:2022-03-18 Online:2022-06-20 Published:2022-08-09

Abstract: 【Objective】The laboratory toxicity of 8 commonly used fungicides against canola Sclerotinia sclerotiorum in Hulun Buir,Inner Mongolia,was determined to provide theoretical basis for the precise selection and use of drugs for the prevention and control of spring canola Sclerotinia sclerotiorum in the cold and arid regions of northern China.【Methods】19 strains of Sclerotinia sclerotiorum from 6 farms in Hulun Buir were collected to test their sensitivity to 8 commonly used fungicides.【Results】The Sclerotinia sclerotiorum samples had average EC50 values of 0.031,0.078,0.261,0.286,0.362,0.536,0.673,and 1.380 μg/mL against prochloraz,carbendazim,procymidon,tebuconazole,boscalid,dimethachlon,difenoconazole,and azoxystrobin.【Conclusions】The canola Sclerotinia sclerotiorum in Hulun Buir,Inner Mongolia was sensitive to eight commonly used fungicides. In production,different types of fungicides should be applied alternately to prevent drug resistance.

Key words: Canola, Sclerotinia stem rot, Sclerotinia sclerotiorum, Fungicide, Sensitivity

CLC Number: 

  • S435.65