Mycosphaerella pini

All pictures by H.C. Evans CABI Wallingford (GB)
(click on the images to enlarge them)

M. pini (red band needle blight) on
Pinus radiata, showing infection of
both young and old foliage.

M. pini (red band needle blight) on
Pinus maximinoi; note general
reddening of needles.

M. pini on Pinus maximinoi; note
aggregated, strongly erumpent
ascostromata with needle reddening.


Dothistroma anamorph of M. pini; note prominent, aggregated acervuli and exposed conidiogenous tissues.	Dothistroma (M. pini anamorph) acervulus (transverse section); note hyaline mass.