Pest Concerns for Corkscrew Willows Near a Deck

Low Pest Risk

Corkscrew willows (Salix matsudana 'Tortuosa') in Nashville, TN typically don't create significant pest problems for adjacent decks. Common issues (aphids, caterpillars, borers) are occasional and rarely drive pests onto structures.

Preventive Approach

1. Do not spray prophylactically. Unnecessary pesticides harm beneficial insects.
2. Monitor: Inspect foliage weekly during growing season.
3. Treat only if thresholds exceeded: e.g., heavy aphid honeydew on deck furniture, defoliation >25%.
4. Cultural health: Water during drought, fertilize annually, prune dead wood.

Potential Pests Reference

UF/IFAS: Corkscrew Willow Pests.