Acta Univ. Agric. Silvic. Mendelianae Brun. 2019, 67, 667-678

https://doi.org/10.11118/actaun201967030667
Published online 2019-06-27

Host Plant Selection in Phyllonorycter Species Living on Willows and Their Hybrids (Lepidoptera: Gracillariidae)

František Gregor1, Hana Šefrová2, Aleš Laštůvka3, Zdeněk Laštůvka4

1Loosova 14, 638 00 Brno, Czech Republic
2Department of Crop Science, Breeding and Plant Medicine, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
3Slavíčkova 15, 796 01 Prostějov, Czech Republic
4Department of Zoology, Hydrobiology, Fisheries and Apiculture, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

Received March 1, 2019
Accepted March 27, 2019

Own knowledge on host plants and on the breadth of the trophic specialization of central European species of Phyllonorycter Hübner, 1822 living on Salix spp. obtained over the past 60 years are presented. A total of 8 species were evaluated and divided into four groups after their trophic relationships; monophagous species: Phyllonorycter quinqueguttella (Stainton, 1851) on Salix repens s. l., and P. viminetorum (Stainton, 1854) on Salix viminalis (here only provisorly due to the small number of reared specimens); narrowly oligophagous species: P. dubitella (Herrich‑Schäffer, 1855) and P. salicicolella (Sircom, 1848), both on Salix species of the section Capreae; oligophagous species: P. hilarella (Zetterstedt, 1839) and P. salictella (Zeller, 1846) on many Salix species, each with different trophic preferences; broadly oligophagous species: Phyllonorycter connexella (Zeller, 1846) and P. pastorella (Zeller, 1846) developing on Salix and Populus species. The hybrids are also used as host plants, and the laying females positively respond to them as well as to the biological Salix species, if at least one of the parental species is the usual host of the relevant Phyllonorycter species. The data on host plants reported by other authors are compared.

Funding

We are grateful to J. Chmelař † for the identification of some Salix species, hybrids and cultivars, and two anonymous reviewers for careful reading of the manuscript, useful remarks and suggestions.

References

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