Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (22): 300-303.doi: 10.11924/j.issn.1000-6850.2014-0928

Special Issue: 园艺

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Detection of the Resistance of Botrytis cinerea to Pyrimethanil from Tomato in Luoyang

  

  • Received:2014-04-02 Revised:2014-05-20 Online:2014-08-05 Published:2014-08-05

Abstract: To investigate the resistance of Botrytis cinerea to pyrimethanil, fifty-four Botrytis cinerea strains were isolated from diseased tomato fruits or leaves collected in 2012 and 2013, from different regions of Luoyang, and evaluated by the method of hypha growth inhibition for the resistance to pyrimethanil. The results demonstrated that the frequency of high, middle, and low resistance and sensitivity were 16.67% , 35.19% , 18.52% , and 29.63% , respectively. There was no significant correlation between the mycelium growth and pyrimethanil-resistance or sensitivity. The research showed that the different levels resistance to pyrimethanil of Botrytis cinerea from tomato have been found, and middle-level resistance was common in Luoyang. The management tomato grey mould disease should be replaced or rotated using reasonable pyrimethanil no crossresistance of fungicide.