Alteration in searching behaviour of adult female green lacewingsChrysoperla carnea (Neur.: Chrysopidae) following contact with honeydew of the black scaleSaissetia oleae (Hom.: Coccidae) and solutions containing acidhydrolysed L-tryptophan

Autor: P. K. McEwen, N. A. C. Kidd, S. Clow, M. A. Jervis
Rok vydání: 1993
Předmět:
Zdroj: Entomophaga. 38:347-354
ISSN: 1573-8248
0013-8959
Popis: Following antennal contact with the honeydew of the black scale (Saissetia oleae Olivier), female adult green lacewings (Chrysoperla carnea Stephens) showed a reduced mean walking speed (inverse orthokinesis), an increased mean turning frequency (positive klinokinesis), and an increased mean turning angle. Similar, but generally less pronounced, behavioural changes occurred after contact with solutions of acid hydrolysed L-tryptophan and water. Reduced walking speed, lower mean turning frequency and increased mean turning angle were also observed in insects exposed to honeydew during the period prior to antennal contact with the honeydew. The observed alterations in behaviour in response to honeydew could increase the likelihood of both honeydew and prey being located in the field.
Databáze: OpenAIRE