By John Descary, Business Leader, MANA Crop Protection
Powdery mildew is a challenging disease that can reduce the health and economic viability of California grape production. That’s why growers rely on powerful control agents like Orius® 20 AQ when implementing their annual disease management plan.
As a liquid formulation, Orius 20 AQ offers a unique and novel surfactant carrier system that delivers excellent efficacy and crop safety, along with improved penetration of the cuticle when compared to dry formulations. And, as a sterol demethylation inhibitor (DMI) class FRAC 3 fungicide group, it can be rotated with strobilurin and boscalid chemistries to manage fungicide resistance.
The development of Orius 20 AQ’s liquid formulation was the result of MANA Crop Protection leaders asking the question: How can we make tebuconazole better? After extensive research and significant investment, we developed a proprietary formulation that allows deeper penetration of Orius 20 AQ’s active ingredient into the plant tissue for better control of powdery mildew.
Orius 20 AQ Outperforms Dry Formulations
In an effort to measure performance benefits of Orius 20 AQ liquid formulation over traditionally-used dry formulated products, MANA Crop Protection sponsored a series of California field efficacy trials between 2005 and 2008 on grapes, peaches, cherries and nectarines.
The following chart shows comprehensive results from eight independent field trials completed over three years. Product application equivalency rates are included.
The color graph clearly shows that Orius 20 AQ provided excellent control of powdery mildew while outperforming the dry formulated products included in the testing. Research completed on stone fruit for control of powdery mildew and blossom blight showed similar results.
One critical point to draw out from the data is that 2005 had high powdery mildew pressure across most of California’s key grape growing regions (including testing sites). Side-by-side comparisons during one of the worst year’s on record for the disease showed Orius 20 AQ surpassing the leading dry formulation alternatives regarding efficacy and disease management performance.
New Formulation Innovations from MANA
The development of Orius 20 AQ was the result of a highly-focused research effort aimed at maximizing product performance through better formulations. Through aggressive innovation work, MANA Crop Protection plans to launch several new formulations of proven products currently in their portfolio by 2013.
In comparison to current market formulations, MANA Crop Protection innovations will have key differentiating attributes which may include improved efficacy, longer residual performance, improved handler safety, and environmentally-friendly platforms that reduce impact on air quality. These new formulations will be especially critical in California where traditionally formulated EC products are under scrutiny from the State, and face regulation restrictions next year. MANA Crop Protection’s new carrier systems will also maintain performance as expected from proven active ingredients and in many cases, outperform the limited number of options that growers and PCAs have available for use next year.
As a reminder . . . when it comes to growing grapes, powdery mildew is one disease that can jeopardize a successful harvest. In preparation for this year’s disease management protocol, be sure to include Orius 20 AQ as a critical component to harness powdery mildew control and ensure high quality grapes.
To learn more about Orius 20 AQ, go to the MANA Crop Protection website at www.manainc.com or call 866-406-6262.
MANA Crop Protection, 3120 Highwoods Blvd. #100, Raleigh NC 27604. Always read and follow label instructions. Orius® is a registered trademark of a Makhteshim Agan Group Company.