Host specificity and biology ofcystiphora sonchi [Dip.: Cecidomyiidae], a candidate for the biological control ofSonchus species

作者: D. P. Peschken

DOI: 10.1007/BF02372063

关键词:

摘要: The host specificity ofCystiphora sonchi (Bremi), a promising biocontrol agent of the sow-thistles,Sonchus arvensis L.,S. oleraceus L., andS. asper (L.)Hill, was investigated. These are widespread, serious weeds in Canada and United States. In laboratory, 6 females produced up to 721 galls on 1 plant ofS. arvensis, 245 leaf. A total 59 species 49 genera familyCompositae were tested.C. viable onSonchus only, thus confirming European field records.C. approved for release Canada.

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