Contarinia spp.
Pest description and crop damage Adult is a small midge (fly). Larvae mine needles; they often appear as a purple node above which the needles are distorted. Degree day models and traps are available to monitor pest emergence.
Management-chemical control
Time applications based on adult needle midge trap catch. Time to coincide with adult emergence.
- acephate (Acephate 97 and Bracket) (Group 1B)
- bifenthrin (OnyxPro, Sniper and others) (Group 3A)-Restricted use
- cyclaniliprole+ flonicamid (Pradia) (Group 28 + Group 29)
- thiamethoxam (Flagship 25 WG) (Group 4A)