DRR Flashcards
1
Q
What conditions are necessary for DRR to be a problem?
A
- Prior OG forest
- had to experience a burn
- likes acidic soils
2
Q
What is the rate of spread for rhizina?
A
2.5m / year
3
Q
What are the hosts and range of rhizina?
A
mostly a problem in young plantations
- Coast and interior wetbelt
- Conifer seedlings
4
Q
What are some aspects of rhizina damage?
A
- sporatic (outbreak every 20 or so years)
- seedling/ plantation failure
- Short lived due to mycostasis
5
Q
What are signs and symptoms of DRR?
A
- Fruiting body (oozing brain)
- Girdled seedling below soil
- white/yellow rhizoids due to sterile soil
6
Q
How is DRR managed at harvest/planting ?
A
Nothing. Replant if necessary
