Weeping Mulberry Leaf Spot: Fungus Overwinters on Fallen Leaves—Rake, Fungicide, Check Neighbors

Disease Cycle

Fungus survives on fallen leaves → spring rain splashes spores to new leaves → spots → more spores → fall reactivation.

Cultural Control

• Rake and DESTROY (don't compost) all fallen leaves.
• Final thorough cleanup just before spring budbreak.

Fungicide Options (Protectant—Apply Early Spring)

• Chlorothalonil (Daconil, Bravo)
• Fixed coppers
• Mancozeb, maneb, zineb
• 2–3 sprays 7–14 days apart as leaves unfold.

External Sources

Check nearby mulberries (neighbors, woods) for same problem—spore source.