PHOMOPSIS
Phomopsis leaf spots (right) differ from black spot (left) Photo credit: Peter Magarey
Look for in shoots- TYPE 1
- Bleached internodes on dormant canes
- Small black fruiting bodies (pycnidia) in the bleached areas
- Sharp black lines outlining the bleached areas
- TYPE 2
- Bleached internodes on dormant canes
- Elongated black cracks and scars on the lower 3-4 internodes of shoots
- Stunted shoots
Look for in leaves - TYPE 2
- Small black spots (< 1 mm) with yellow halos on leaves
- Spreads during long periods of cool wet weather in spring
- Monitor carefully in the period 3-6 weeks from budburst because actively growing foliage is most susceptible.
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OTHER PHOMOPSIS IMAGES
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