TreeIssues

Laurel Wilt in Tennessee

HIGH

Fungus

Active now in Tennessee

Laurel Wilt is currently active in Tennessee. Watch your susceptible trees closely and act early.

About Laurel Wilt

A lethal vascular disease of trees in the laurel family, vectored by the non-native redbay ambrosia beetle. It has devastated redbay populations in the southeastern coastal plain and threatens sassafras, avocado, and other lauraceous species.

Symptoms to watch for

Rapid wilting and browning of foliage that remains attached, dark streaking in sapwood, tiny beetle entrance holes with sawdust tubes (toothpick-like frass), death within weeks to months of symptom onset

Trees at risk in Tennessee

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Treatment options

Propiconazole Preventive Injection

Chemical TreatmentEffectiveness: MODERATE

Macro-infusion of propiconazole fungicide into root flares of high-value sassafras or avocado trees before infection occurs. Provides 1-2 years of partial protection. Does not cure infected trees.

Sanitation Removal of Infected Trees

Cultural PracticeEffectiveness: MODERATE

Prompt removal and destruction of infected trees to reduce beetle breeding habitat and fungal inoculum. Cover stumps to prevent ambrosia beetle colonization of cut wood.

Recommended Products & Tools

Helpful supplies for managing Laurel Wilt. Always read and follow label directions, and confirm a diagnosis before treating.

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Frequently asked questions

Is Laurel Wilt in Tennessee?

Laurel Wilt is currently active in Tennessee. Watch your susceptible trees closely and act early.

What does Laurel Wilt look like?

Rapid wilting and browning of foliage that remains attached, dark streaking in sapwood, tiny beetle entrance holes with sawdust tubes (toothpick-like frass), death within weeks to months of symptom onset

What trees does Laurel Wilt affect in Tennessee?

It affects Sassafras. Susceptibility varies by species.

How do I treat Laurel Wilt?

Options include: Propiconazole Preventive Injection, Sanitation Removal of Infected Trees. Confirm the diagnosis before treating, and consider a certified arborist for high-value trees.