Survival, body mass and potential fecundity of the invasive moth Cameraria ohridella (Lepidoptera: Gracillariidae) on its original host plant Aesculus hippocastanum and Aesculus glabra

Urszula WALCZAK, Edward BARANIAK, Piotr ZDUNIAK
2017 European Journal of Entomology  
Performance of the invasive horse-chestnut leaf miner, Cameraria ohridella Deschka & Dimic, 1986 (Lepidoptera: Gracillariidae), was studied on two host plants: the white-fl owering horse-chestnut Aesculus hippocastanum L. and the Ohio buckeye Aesculus glabra Willd. C. ohridella developed successfully on both host plants; however, mine density and survival were much higher on A. hippocastanum than on A. glabra. The pupal mass and potential fecundity were strongly affected by the host plant on
more » ... he host plant on which the larvae fed. On A. hippocastanum pupae were signifi cantly heavier and females more fecund than those on A. glabra. Furthermore, on both host plants there was a signifi cant positive correlation between the number of oocytes in ovaries and pupal body mass, and as a consequence, heavier females produced more eggs. Our study demonstrates that the mine density, survival, pupal mass and potential fecundity were signifi cantly lower on A. glabra than on A. hippocastanum. The observed lower performance of C. ohridella on the exotic host plant was assumed to be due to its poor food quality (nutritional and chemical composition).
doi:10.14411/eje.2017.036 fatcat:aujjfdx2ufe2tiyraidpahrcrq