Life cycle of Harmonia axyridis in central Europe

0483319 - ÚI 2019 RIV NL eng J - Journal Article
Honěk, A. - Martinková, Z. - Dixon, A. F. G. - Skuhrovec, J. - Roy, H. E. - Brabec, Marek - Pekár, S.
Life cycle of Harmonia axyridis in central Europe.
Biocontrol. Roč. 63, č. 2 (2018), s. 241-252. ISSN 1386-6141. E-ISSN 1573-8248
R&D Projects: GA ČR(CZ) GA17-06763S; GA MŠMT(CZ) ED1.1.00/02.0073
Grant - others:COST(XE) TD1209
Program: FA
Institutional support: RVO:67985807
Keywords : Coccinellidae * Development * Generation * Temperature * Voltinism
OECD category: Entomology
Impact factor: 2.191, year: 2018

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.
Permanent Link: http://hdl.handle.net/11104/0278672