Nuculaspis californica
Pest description and crop damage Gray-black scale. Hosts: Douglas-fir and pine.
Management-chemical control
- azadirachtin (AzaDirect and others)-Some formulations are OMRI-listed for organic production.
- bifenthrin (Brigade, OnyxPro, Sniper and others)-Restricted use pesticide. (Group 3)
- buprofezin (Talus)-(Group 16)
- chlorpyrifos (Lorsban Advanced, Warhawk and others)-Restricted use pesticide. (Group 1)
- dinotefuran (Safari 20 SG)-Check registration status at time of application. (Group 4)
- horticultural oil (Ultra-Pure, 440 Superior Oil and others)-Some formulations are OMRI-listed for organic production.