Aproach® Prima Fungicide for Resistant Disease Control

New fungicide safeguards yield potential for corn, soybean and wheat growers and provides another tool for resistant disease control.

WILMINGTON, Del., October 30, 2013 – Corn, soybean and wheat growers have a new fungicide with two modes of action to protect yield potential and address the need for resistant disease control.  DuPont Aproach® Prima fungicide has been granted registration approval by the U.S. Environmental Protection Agency.

Aproach® Prima (aproachprima.dupont.com) includes the same unique strobilurin active ingredient as DuPont™ Aproach® fungicide plus triazole to deliver a second critical mode of action that helps manage fungicide-resistant diseases and helps growers protect their genetic investment.

The dual protection offered by Aproach® Prima provides preventive and curative control of difficult and yield-robbing diseases in corn, soybeans and wheat, including frogeye leaf spot, a major soybean disease in the South and mid-South that has recently spread into northern growing areas. Aproach® Prima also protects crops from damage due to Septoria brown spot, downy mildew, soybean rust, gray leaf spot, Northern corn leaf blight, common rust and Southern rust.

“As the threat of resistant fungal diseases continues to grow, Aproach® Prima offers growers a new tool for protecting their genetic investments, especially on intensively managed, high-yielding acres,” said James Hay, regional director, North America, DuPont Crop Protection. “We continue to introduce new crop protection products from the DuPont pipeline as part of our commitment to help growers maximize production. Working together, we can meet the food needs of our growing world population.”

Systemic movement within the plant allows the unique strobilurin in Aproach® Prima to prevent and control disease on all plant surfaces, even on stems and leaves deep under the canopy. The combination of two premier fungicides in Aproach® Prima controls strobilurin-resistant fungal pathogens, as well as maintains plant health under stressful conditions and protects acres exposed to significant disease pressure.

In field trials throughout the country, Aproach® Prima reduced the incidence of disease and severity levels, leading to healthier plants and increased yield.

  • In soybeans, Aproach® Prima decreased severity of resistant frogeye leafspot by more than 67 percent and increased yield by 6 bushels per acre over untreated soybeans not treated with fungicide.1
  • Aproach® Prima decreased the incidence of soybean rust by 92 percent compared with untreated control plots, while Quilt Xcel only reduced rust incidence by 42 percent. That improved disease control delivered increased soybean yield by 16 bushels per acre over Quilt Xcel plots.2
  • In seed corn, when compared to two leading fungicides, Aproach® Prima maintained green leaf area more effectively and increased yield by more than 11 bushels per acre versus untreated acres, significantly more than the other fungicides.3
  • In a winter wheat trial, Aproach® Prima reduced severity of powdery mildew by nearly 99 percent and Septoria tritici (the cause of Septoria leaf blotch) by nearly 85 percent, compared with disease reductions of 89 percent and 65 percent, respectively, by Quilt Xcel.4

DuPont Crop Protection is one of several companies collaborating through the Fungicide Resistance Action Committee (FRAC) to monitor plant disease and identify best practices to reduce development of fungicide-resistant diseases. Other resistant disease control strategies recommended by FRAC include avoiding repeated use of a single fungicide mode of action, maintaining recommended dose rates, mixing or alternating with an appropriate partner fungicide, limiting the number and timing of treatments, avoiding eradicant use, and integrating fungicide use with non-chemical methods.

(1) Results from a 2011 trial conducted by M. Newman, University of Tennessee. 
(2) Results from a 2012 Auburn University trial including DuPont™ Aproach® Prima and Quilt Xcel fungicide.  Applications made at R2 and 14 days later.
(3) Results from a 2012 DuPont trial conducted at Johnston, Iowa, including Aproach® Prima, Quilt Xcel and Quadris.  Fungicides applied at R1 and 14 days later.  
(4) Results from a 2012 research trial conducted by Agricumbia, Wharton, Texas. Aproach® Prima applied at flag leaf stage. Quilt Xcel applied at tillering and flag leaf stage.  

DuPont™ Aproach® Prima fungicide is not registered for sale or use in all states.  See your DuPont retailer or representative for details on availability in your state.  

Quadris and Quilt Xcel are registered trademarks of a Syngenta Group Company.

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