Morning Glory Rust: Neem and Sanitation

Morning glories around an outdoor shower develop orange spots (rust fungus) and dying leaves. Owner asks about fungicide and soil contamination.

Diagnosis: Rust Fungus

Rust requires two hosts (e.g., cedar-apple), but morning glory rust may be a single-host species. It's favored by humidity.

Management

• Neem oil spray (organic) on foliage—covers top and bottom of leaves.
• Soil drench with Neem if concerned, but winter freezes kill spores.
• Don't use toxic fungicides near shower area.

Good News

Morning glories are annuals from seed. Next year's plants will be clean. This is likely a one-time flare-up from weather.