Title: Feeding preference
of
Coccinella hieroglyphica (Col., Coccinellidae) for eggs of three
chrysomelid beetles.
Personal Authors: Hippa,
H.,
Koponen,
S.,
Roine,
R.Author Affiliation: Zoological Museum,
Department of Biology, Turku University, SF 20500 Turku 50, Finland.
Editors: No editors
Document
Title: Reports from the Kevo Subarctic Research Station
Abstract:
As a result of recent reports of Coccinella hieroglyphica L. (which
normally attacks aphids) preying on the eggs of species of Altica,
Galerucella and Lochmaea damaging cultivated strawberry and bog
shrubs including cloudberry (Rubus chamaemorus) in northern Finland, the
feeding preferences of 13 females and 10 males of C. hieroglyphica were
tested in the laboratory. Galerucella eggs were preferred to those of
Lochmaea or Altica, but Myzus persicae (Sulz.) was also
readily taken and a marked cannibalism of the eggs of C. hieroglyphica
was observed. The relevance of these results to field conditions, and
especially to outbreaks of Galerucella on cloudberry, is
discussed.
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