Myzocallis coryli
| Myzocallis coryli | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hemiptera |
| Suborder: | Sternorrhyncha |
| Family: | Aphididae |
| Genus: | Myzocallis |
| Species: | M. coryli
|
| Binomial name | |
| Myzocallis coryli Goeze, 1778
| |
Myzocallis coryli, commonly known as the hazel aphid, is an aphid in the genus Myzocallis found in the United States and Europe.[1][2]
Appearance
This species is whiteish green when young, turning light yellow green when mature. this species has almost nonexistent siphunculi, which under a microscope are cone shaped. These aphids also have sparse hairs covering their bodies.[2]
Host plants
This species only uses Corylus genus plants as their host. In the woods, they use beaked hazelnuts. In agricultural settings they can, and will, use Corylus avellana and related species as their host plants. Ornamental trees are also used.[2][3]
Agricultural damage
In Oregon, these aphids are major pests to hazelnut farming.[2] Heavy infestations will cause hazelnuts to become stunted or smaller, which makes them less suitable for commercial sale and unappealing.[2][3]
References
- ^ "Myzocallis coryli (Goeze, 1778)". GBIF. Retrieved 17 December 2025.
- ^ a b c d e "Myzocallis coryli (Hazel aphid): identification, images, ecology, control". influentialpoints.com. Retrieved 17 December 2025.
- ^ a b "Hazelnut-Aphid". Pacific Northwest Pest Management Handbooks. 22 October 2015. Retrieved 17 December 2025.