DRR

Question 1

What conditions are necessary for DRR to be a problem?

Answer 1

• Prior OG forest
• had to experience a burn
• likes acidic soils

Question 2

What is the rate of spread for rhizina?

Answer 2

2.5m / year

Question 3

What are the hosts and range of rhizina?

Answer 3

mostly a problem in young plantations

• Coast and interior wetbelt
• Conifer seedlings

Question 4

What are some aspects of rhizina damage?

Answer 4

• sporatic (outbreak every 20 or so years)
• seedling/ plantation failure
• Short lived due to mycostasis

Question 5

What are signs and symptoms of DRR?

Answer 5

• Fruiting body (oozing brain)
• Girdled seedling below soil
• white/yellow rhizoids due to sterile soil

Question 6

How is DRR managed at harvest/planting ?

Answer 6

Nothing. Replant if necessary