Wild potato repels aphids by release of aphid alarm pheromone

@article{Gibson1983WildPR,
  title={Wild potato repels aphids by release of aphid alarm pheromone},
  author={R. Gibson and J. Pickett},
  journal={Nature},
  year={1983},
  volume={302},
  pages={608-609}
}
We report here that the aphid Myzus persicae (Sulzer) is repelled, at a distance of 1–3 mm, from leaves of the wild potato Solatium berthaultii Hawkes. In addition, air from above the foliage induces rapid dispersal of settled aphid colonies, behaviour similar to that of aphids exposed to the aphid alarm pheromone, (E)-β-farnesene1–4. The presence of substantial quantities of (E)-β-farnesene in air around S. berthaultii foliage and in ethanolic washings from it was demonstrated by gas… Expand
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