A Powerful Combination for Controlling Walnut Blight!

A Powerful Combination for Controlling Walnut Blight

Walnut blight, caused by Xanthomonas arboricola pv. juglandis, is a major threat to walnut growers, leading to significant crop losses. Effective disease management is critical, and recent research highlights a highly effective combination of Magna-Bon CS 2005 and Manzate for controlling walnut blight.

Research-Backed Results

Research performed by Dr. Jim Adaskaveg (UC Riverside) tested the efficacy of this combination by inoculating walnut trees with copper-resistant strains of walnut blight. The trials included four applications between April and May (4/6, 4/14, 4/23, and 5/1), using 27 ounces of Magna-Bon CS 2005 and 2.4 lbs. of Manzate DF per application. The result?

100% Control of Walnut Blight!

Why This Combination Works

  • Magna-Bon CS 2005 is an OMRI-listed copper sulfate pentahydrate in-solution formula, providing targeted control with lower copper A.I. than traditional options.
  • Manzate enhances the effectiveness of copper, creating a synergistic defense against walnut blight.

Together, they offer a proven, reliable solution for growers looking to maximize disease control while minimizing environmental impact.

We also have additional research from Dr. Jim Adaskaveg on walnut blight. As shown in the research below, Magna-Bon CS 2005 achieved 94% control of walnut blight, even with an infection rate of over 34%. Meanwhile, conventional copper hydroxides performed worse than the untreated control, highlighting the superior efficacy of Magna-Bon CS 2005.

Trusted by Growers

UC – Davis research consistently demonstrates that this mix performs as well as, if not better than, other leading treatments. With a strategic application approach, walnut growers can significantly reduce the risk of blight and protect their yields.

For more details on research findings and best practices for using Magna-Bon CS 2005, visit our Research Page.