Preliminary results on population dynamics and host plants of <i<Hyalesthes obsoletus</i> in North-Eastern Italy

Authors

  • V. Forte
  • E. Angelini
  • M. Maixner
  • M. Borgo

DOI:

https://doi.org/10.5073/vitis.2010.49.39-42

Keywords:

bindweed, Bois noir, Convolvulus arvensis, Calystegia sepium, flight activity, Lamium orvala, nettle, Urtica dioica

Abstract

This work dealt with Hyalesthes obsoletus, which is the only known vector of Bois noir disease in grapevine. Investigation centered on its flight activity and occurrence on bindweed and stinging nettle and, to a lesser extent, hedge bindweed and dead-nettle in North-Eastern Italy. The survey underlined the importance of bindweed in the insect lifecycle in Northern Italy, where only data from stinging nettle had previously been recorded. H. obsoletus nymphs were found for the first time on the roots of dead-nettle, which proved to be a new host plant. The first observation in Italy of nymphs on hedge bindweed roots was also recorded.


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Published

2015-04-07

Issue

Vol. 49 No. 1 (2010): Vitis

Section

Article

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