Managing Impatiens Necrotic Spot Virus: Soil Solarization and Resistant Varieties

Soil Solarization

Cover the affected bed with black plastic for 3 months during warm weather. This heat-sterilizes the soil, killing the soilborne virus.

The variety you're growing may be highly susceptible. Explore alternatives at:

Spray copper-based fungicide (e.g., Soap-Shield) every 10 days from bloom start next spring.

Annuals: Impatiens Downy Mildew: Soil Persistence, Solarization, and Rotation; Impatiens Wilting in Heat? Why They Collapse and How to Save Them; Best Annual Companions for Lavender; Planting Impatiens Under Trees: Beating Root Competition; Reviving Impatiens in a Depleted Raised Bed: Soil Amendment and Rotation; Dealing with Ants, Fungus, and Viruses on Impatiens: Compost Tea and Sanitation; Pinching Impatiens: When It Helps and When Soil Matters More; Managing Necrotic Ring Spot with Aeration and Compost; Impatiens Necrotic Spot Virus (INSV): Thrips Transmission, Symptoms & Containment; Impatiens Necrotic Spot Virus (INSV) & Western Flower Thrips: A Greenhouse Crisis

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