Douglas Fir (Pseudotsuga menziesii) needles probably attacked by a fungal pathogen (maybe the Swiss Needle Cast, Phaeocryptopus gaeumannii). These symptoms should not be confounded with galls caused by the Douglas fir needles gall midge (Contarinia pseudotsugae s.l.)
Location : Belgium
<a href="//commons.wikimedia.org/wiki/User:GillesSM" title="User:GillesSM">Gilles San Martin</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>