Journal of Applied Entomology (2017) 141, 758-767
D. Matosevic, N. Lackovic, K. Kos, E. Kriston, G. Melika, M. Rot and M. Pernek (2017)
Success of classical biocontrol agent Torymus sinensis within its expanding range in Europe
Journal of Applied Entomology 141 (9), 758-767
Abstract: Torymus sinensis Kamijo (Hymenoptera, Torymidae), a classical biocontrol agent of chestnut gall wasp Dryocosmus kuriphilus (Hymenoptera, Cynipidae), was released in Croatia, Slovenia and Hungary in 2015. Following the introduction, the research of parasitism rates and population genetic indices on 40 different sites was performed to monitor and evaluate the success of establishment. The observed parasitism rates were unexpectedly high and negatively correlated with the distance from westernmost locality, while population genetic indices showed that populations of T. sinensis did not suffer from bottleneck-induced founder effect phenomenon. Moreover, lack of genetic differentiation demonstrates that all populations share similar genetic structure, which could be shaped only by high levels of gene flow. We conclude that T. sinensis established viable and genetically diverse populations and successfully spread naturally from Italy across Slovenia to Croatia and Hungary.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Nikola Lackovic, Dinka Matosevic, Milan Pernek, Katarina Kos
Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
classical biocontrol/new introduction
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Dryocosmus kuriphilus | Croatia | |||
| Dryocosmus kuriphilus | Hungary | |||
| Dryocosmus kuriphilus | Slovenia | |||
| Torymus sinensis (parasitoid) | Dryocosmus kuriphilus | Croatia | ||
| Torymus sinensis (parasitoid) | Dryocosmus kuriphilus | Hungary | ||
| Torymus sinensis (parasitoid) | Dryocosmus kuriphilus | Slovenia |
