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Volume 25 Issue 6
Nov.  2011
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Article Contents
YU De-yi, YAO Jin-ai, HUANG Peng, YANG Yi-hua, WANG Lian-de, HU Jin-feng. Panonychus citri's sensitivity to three acaricides on black plum[J]. Fujian Journal of Agricultural Sciences, 2010, 25(6): 736-739.
Citation: YU De-yi, YAO Jin-ai, HUANG Peng, YANG Yi-hua, WANG Lian-de, HU Jin-feng. Panonychus citri's sensitivity to three acaricides on black plum[J]. Fujian Journal of Agricultural Sciences, 2010, 25(6): 736-739.

Panonychus citri's sensitivity to three acaricides on black plum

  • Received Date: 2010-09-26
  • Rev Recd Date: 2010-10-26
  • Publish Date: 2010-12-15
  • Laboratory toxicity test and field efficacy of three acaricides on Panonychus citri on black plums were conducted.The results showed that the laboratory LC50 of avermectins,pyridaben and avermectins+propargite on P.citri were 0.1596 mgL-1,0.9752 mgL-1 and 23.7307 mgL-1,respectively.Avermectins had the best poisoning effect on the pest.The field efficacy of 5.12 mgL-1 avermectins,64.00 mgL-1 pyridaben or 280.00 mgL-1 avermectins+propargite on P.citri all exceeded 90.00%.The three pesticides all had high lethality to the pest with no phytotoxicity.The b-values of the toxicity regression equations for the three acaricdes differed.The P.citri population sensitivity distributed most evenly with avermectins+propargite,followed by pyridaben and avermectins.It appeared that the laboratory LC50,field efficacy and b-value on the toxicity regression equation could be used as the criteria to evaluate P.citri's sensitivity to acaricides on black plums.
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