Plant Disease Clinic Update - May 9, 2007
Plant Disease Clinic Update - May 9, 2007
Samples with the following problems have come into the Plant Disease Clinic recently:
- Black root rot on greenhouse plants
- Cercospora needle blight on juniper
- Diplodia tip blight on Jack pine
- Pine bark adelgids on white pine
- Rhizosphaera needle cast on spruce
- Spider mite injury on spruce
- Sooty mold on white pine
A white pine sample with sooty mold fungus on the stem and needles.
This article originally appeared on page 50 of the IC-497(10) -- May 9, 2007 issue.
