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Effect of Emamectin Benzoate on Root-Knot Nematodes and Tomato Yield

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  • Xingkai Cheng
  • Xiumei Liu
  • Hongyan Wang
  • Xiaoxue Ji
  • Kaiyun Wang
  • Min Wei
  • Kang Qiao

Abstract

Southern root-knot nematode (Meloidogyne incognita) is an obligate, sedentary endoparasite of more than 3000 plant species, that causes heavy economic losses and limit the development of protected agriculture of China. As a biological pesticide, emamectin benzoate has effectively prevented lepidopteran pests; however, its efficacy to control M. incognita remains unknown. The purpose of the present study was to test soil application of emamectin benzoate for management of M. incognita in laboratory, greenhouse and field trials. Laboratory results showed that emamectin benzoate exhibited high toxicity to M. incognita, with LC50 and LC90 values 3.59 and 18.20 mg L-1, respectively. In greenhouse tests, emamectin benzoate soil application offered good efficacy against M. incognita while maintaining excellent plant growth. In field trials, emamectin benzoate provided control efficacy against M. incognita and resulted in increased tomato yields. Compared with the untreated control, there was a 36.5% to 81.3% yield increase obtained from all treatments and the highest yield was received from the highest rate of emamectin benzoate. The results confirmed that emamectin benzoate has enormous potential for the control of M. incognita in tomato production in China.

Suggested Citation

  • Xingkai Cheng & Xiumei Liu & Hongyan Wang & Xiaoxue Ji & Kaiyun Wang & Min Wei & Kang Qiao, 2015. "Effect of Emamectin Benzoate on Root-Knot Nematodes and Tomato Yield," PLOS ONE, Public Library of Science, vol. 10(10), pages 1-9, October.
    • Handle: RePEc:plo:pone00:0141235
    DOI: 10.1371/journal.pone.0141235
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