Protect Your Blueberries from Algal Stem Blotch — with Magna-Bon CS 2005
Algal Stem Blotch, caused by the parasitic green alga Cephaleuros virescens, is a growing threat to southern highbush blueberries (Vaccinium corymbosum) and native sparkleberry (V. arboreum) in the Southeastern U.S.
It shows up as red, blotchy stem lesions that weaken canes and reduce vigor, potentially lowering yield.
When it comes to managing Algal Stem Blotch, one of the best solutions is a systemic copper fungicide — and Magna-Bon CS 2005 stands out as a specialized, effective option.
Why Magna-Bon CS 2005 Is a Smart Choice.
🧬 🎯 Targeted Algal Control
Magna-Bon CS 2005 is a copper sulfate pentahydrate, in-solution formula specially designed to combat algal diseases like Algal Stem Blotch. It offers direct activity against algal pathogens — a capability that many conventional fungicides lack.
🌎 ♻️ Environmentally Responsible
Unlike conventional copper sprays that demand several pounds of metallic copper per acre, CS 2005 requires less than ¼ pound per acre to be effective. This drastically reduces the risk of soil copper buildup over time.
🌱 ✅ Organic Certification
As an OMRI-listed product, Magna-Bon CS 2005 meets organic production standards, making it suitable for organic blueberry farming operations.
🚜 🌤️ Flexible Application Window
Apply after harvest through September, every 7–28 days depending on pressure. Ensure full cane coverage for maximum control.
🌾 🌟 Healthier Plants, Cleaner Stems, Stronger Yields
Growers across the Southeast report visible improvements in cane health, fewer lesions, and higher productivity.
Watch Kenny’s testimonial!
Ready to protect your blueberries from Algal Stem Blotch?
Join the growers who trust Magna-Bon CS 2005 for cleaner stems, healthier plants, and stronger yields.
👉 Contact our team today to learn how CS 2005 can fit into your disease management program.