Toxicity of rapeseed meal-amended soil to wireworms of Limonius californicus (Coleoptera: Elateridae)

  • Elberson L
  • Borek V
  • McCaffrey J
 et al. 
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Abstract

The acute toxicity of soil amended with rapeseed (Brassica napus L.) seed meal to wireworms, Limonius californicus (Mannerheim) (Coleoptera: Elateridae), was determined in laboratory bioassays. Wireworms were exposed to rapeseed seed meal at concentrations from 41.7-500 g/kg soil for 24 h. Probit analysis estimated a LC50 value of 124.8 g/kg soil 7 d after treatment. The LC50 value decreased to 114.4 g/kg soil 21 d after treatment with no further change in mortality up to 35 d. Brassica napus tissues show potential for reducing populations of L. californicus. However, applications to soil for insect pest management would require plant material with even higher levels of isothiocyanate-producing glucosinolate to provide useful biological fumigation activity.

Author-supplied keywords

  • biofumigation
  • brassica spp
  • coleoptera
  • diseases
  • due to environmental and
  • elateridae
  • glucosinolates
  • health conce1us
  • insects and weeds
  • isothiocyanates
  • limonius californicus
  • nematodes
  • rapeseed
  • soil fumigation is commonly
  • used for controlling a
  • wide array of soilborne

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  • SGR: 0004849567
  • PUI: 126693709
  • ISSN: 15235475
  • SCOPUS: 2-s2.0-0004849567

Authors

  • L R Elberson

  • V Borek

  • J P McCaffrey

  • M J Morra

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