Prociphilus americanus
Pest description and crop damage Tree above ground is stunted and off-color. Below ground colonies of white aphids attached to roots often tended by small ants. In severe cases, replanting may be required as unhealthy trees are slow to recover.
See table:
Hosts and Symptoms of Major Aphid and Adelgid Pests of Christmas Trees
Management-chemical control
- spirotetramat (Ultor, Movento) (Group 23)-Appropriate surfactant necessary.
- thiamethoxam (Flagship 25 WG) (Group 4A)
Christmas Tree Export Pests
Many insects have export restrictions, but the pests listed below do not cause tree damage so are listed separately.