Eur. J. Entomol. 95 (2): 211-216, 1998
Effects of oviposition-deterring pheromone and allomones on Aphidoletes aphidimyza (Diptera: Cecidomyiidae)
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Larvae of Aphidoletes aphidimyza (Rondani) (Diptera: Cecidomyiidae) secrete an oviposition-deterring pheromone (ODP). In choice tests, females of A. aphidimyza laid significantly fewer eggs on Vicia faba L. plants infested with Aphis fabae Scopoli (Homoptera: Aphidoidea) that were previously exposed to conspecific third-instar larvae or a water extract of their ODP.
A. aphidimyza females also laid fewer eggs on aphid-infested plants that were previously exposed to unfed first-instar larvae of Chrysopa oculata Say, Chrysopa perla (L.) or Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae), or second-instar larvae of Coccinella septempunctata L. (Coleoptera: Coccinellidae). However, the response to traces of C. carnea larvae was very weak.
Keywords: Oviposition strategy, deterrent secretion, aphid predators, predaceous gallmidge, Aphidoletes aphidimyza, Cecidomyiidae, Chrysopa oculata, Chrysopa perla, Chrysoperla carnea, Chrysopidae, Coccinella septempunctata, Coccinellidae
Accepted: October 8, 1997; Published: May 20, 1998 Show citation
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