Life cycle of Harmonia axyridis in central Europe

• Published in: BioControl (Dordrecht, Netherlands) Vol. 63; no. 2; pp. 241 - 252
• Main Authors: Honek, A., Martinkova, Z., Dixon, A. F. G., Skuhrovec, J., Roy, H. E., Brabec, M., Pekar, S.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.04.2018; Springer Nature B.V
• Subjects: Adults; Agriculture; Air temperature; Animal Biochemistry; Animal Ecology; Autumn; Behavioral Sciences; Biomedical and Life Sciences; Breeding; Dormancy; Emigration; Entomology; Females; Harmonia axyridis; Hatching; Life cycle engineering; Life cycles; Life Sciences; Oviposition; Plant Pathology; Prey; Seasons; Temperature effects; Central Europe; Czech Republic; Development; Generation; Temperature; Coccinellidae; Voltinism
• ISSN: 1386-6141; 1573-8248
• DOI: 10.1007/s10526-017-9864-2

The development and reproduction, and maximum number of generations across seasons were ascertained for populations of Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) in Central Europe. Number of generations was calculated using the thermal characteristics of development and summation of daily average air temperatures, in 2007–2016. This species can produce 2–3 generations per year. However, there is insufficient time for it to achieve its full reproductive potential. Delayed emigration from hibernacula (late April) shortened the period of seasonal activity by 1–6%. Breeding occurred from May to mid September. Oviposition continued into late summer, which left insufficient time for the late-hatching immatures to complete their development before the onset of winter. A high mobility, opportunistic use of prey patches and weak tendency to enter dormancy provide the potential for population increase by extending the period of development of immatures at the risk of failure if the cold period comes early.