PMID: 12770073May 29, 2003Paper

Maternal reproductive decisions are independent of feeding in the black bean aphid, Aphis fabae

Journal of Insect Physiology
Colin R ToshJim Hardie

Abstract

Aphids are phloem feeders and an important assumption has been that reproduction is initiated only after phloem ingestion. Here we investigate the plant tissue location of parturition cues in winged and wingless, summer virginoparae and autumn migrants (gynoparae) of the black bean aphid, Aphis fabae. These seasonal forms have different host preferences. Using electrical penetration graph (EPG: to observe activity of the mouthparts) and video-monitoring procedures we demonstrate that the time to first parturition after host-plant contact is significantly shorter than the time to first registered phloem contact in the summer winged form. In gynoparae, the time to first parturition does not significantly differ from time to first phloem contact but is shorter than time to first phloem ingestion. Times to first parturition, first registered phloem contact and first phloem ingestion do not differ significantly in the summer wingless form. Simultaneous EPG and video recording procedures show that a high proportion of individuals of all morphs (45-70%) initiate reproduction before sustained phloem activities (salivation/ingestion). The only behaviours that all individuals demonstrate before first parturition are 'non-penetration' (ap...Continue Reading

Citations

Jul 3, 2003·Journal of Insect Physiology·Colin R ToshJim Hardie
Dec 8, 2005·Annual Review of Entomology·Glen PowellJim Hardie
Oct 15, 2011·Pest Management Science·Jin-Hao ZhaoChuan-Ming Yu
Oct 21, 2017·Insects·Refka Ben-IssaHélène Gautier
Jan 1, 2016·Agronomy for Sustainable Development·Thomas McDanielBarry Brogan
Dec 29, 2009·Journal of Insect Physiology·Julien PomponYvan Pelletier

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