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 (OnyxPro, Sniper and others)-Restricted use. (Group 3)
- buprofezin (Talus and others)-(Group 16)
- dinotefuran (Safari 20 SG)- (Group 4)
- horticultural oil (Ultra-Pure, 440 Superior Oil and others)-Some formulations are OMRI-listed for organic production.