Douglas fir needles 6139M
Description:
Description: English: Douglas Fir (Pseudotsuga menziesii) needles attacked by two bioagressors : 1) the somewhat inflated bases of the needles colored with violet are galls caused by the Douglas fir needles gall midge (Contarinia pseudotsugae s.l.) 2) the brownish/reddish, dessicated needle tips are probably caused by a fungal pathogen (maybe the Swiss Needle Cast, Phaeocryptopus gaeumannii). These last symptoms could also be caused by physiological problems. Location : Belgium. Date: 6 September 2016, 21:53:58. Source: Own work. Author: Gilles San Martin.
Included On The Following Pages:
- Life (creatures)
- Cellular (cellular organisms)
- Eukaryota (eukaryotes)
- Opisthokonta (opisthokonts)
- Nucletmycea
- Fungi (mushrooms, lichens, molds, yeasts and relatives)
- Dikarya
- Ascomycota (sac fungi)
- Dothideomycetes
- Capnodiales
- Capnodiaceae
- Phaeocryptopus
- Phaeocryptopus gaeumannii
This image is not featured in any collections.
Source Information
- license
- cc-by-sa-3.0
- copyright
- Gilles San Martin
- creator
- Gilles San Martin
- original
- original media file
- visit source
- partner site
- Wikimedia Commons
- ID
