Dryocosmus kuriphilus
Taxonomic position
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| Literature database |
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| 100 articles sorted by: |
| • year (recent ones first) |
| • research topics |
| • countries/regions |
| • list of natural enemies |
Author(s): Gyorgy Csoka, Hungary Forest Research Institute
Source: Wikimedia Commons
Dryocosmus kuriphilus Yasumatsu - (chestnut gall wasp)
is native to parts of eastern Asia and has invaded other regions around the world becoming an important pest of chestnut trees. It spreads through infested chestnut plants and has reached Japan (first record 1940), North America (1974) and Europe (2002). The wasp attacks the buds and converts them into galls, causing substantial nut losses. The adults are 2½-3 mm long, black with brownish legs. Only females are known which reproduce parthenogenetically. There is only 1 generation per year and eggs are laid into the buds in the summer. After hatching from the eggs, the young larvae overwinter on the trees and continue their development the following spring. Up to 2 cm long, green galls are formed and the adults emerge in late spring or early summer. The application of pesticides has little effect and the development of biological control methods in being explored.
| Vernacular names | |
|---|---|
| • Deutsch: | Kastaniengallwespe Japanische Esskastanien-Gallwespe |
| • English: | chestnut gall wasp oriental chestnut gall wasp |
| • Français: | chalcide du châtaignier |
The literature database currently contains 100 publications for Dryocosmus kuriphilus. (See box above/on left.)
- Other images of Dryocosmus kuriphilus (IPM Images - click to enlarge)
galls on chestnut (Castanea)
