Armillaria Root Rot in Podocarpus Hedge: Finding Resistant Replacements

Lab-confirmed Armillaria root rot (shoestring fungus) in a Podocarpus hedge (Zone 9b) requires removal and replanting with resistant species. The fungus has a broad host range, making substitution tricky.

Holly Susceptibility

Ilex (hollies), including Nellie R. Stevens, are listed as hosts and should be avoided.

Potential Alternatives

• Elaeagnus (Russian Olive): Fast-growing hedge candidate, but requires regular shaping to control long, wild branches.
• Local Expertise: Contact your county Extension office and the diagnostic lab for region-specific tolerant plant lists.

Realistic Expectations

Armillaria control in landscapes is often impractical. Focus on species with proven tolerance in your area. The Extension office (often in the county courthouse) is the best starting point.

Expert insight provided by Steve.