Fungicide Movement Matters
Preserving foliar health is important to maximizing crop yield. The type of fungicide you choose can have a major impact on how well an application controls disease.
How a fungicide moves into and within a plant will determine its disease-fighting value. Products with systemic movement offer several advantages, including longer control and better efficacy under less-than-ideal spray conditions and timing.
Contact vs. Systemic Activity
Contact fungicides remain on leaf surfaces and have no after-infection activity. They can wash off with rain or be degraded by sunlight, requiring repeat applications. Because they don’t move within the plant, new growth isn’t protected. Good spray coverage is required for effective control with contact fungicides.
Systemic fungicides are absorbed into plant tissue to offer some after-infection activity. Translaminar movement, also known as local systemic activity, allows fungicide droplets to spread out and move inside leaf tissue for both internal and external protection. The underside of the leaf is also protected. Xylem-systemic fungicides deliver even more control because they move upward within the plant in xylem tissue to protect new growth.
Two Effective Systemic Options
DuPont™ Aproach® Prima and Aproach® fungicides offer contact, local and xylem-systemic movement. Aproach® contains picoxystrobin – the most rapidly absorbed type of strobilurin available. Field studies showed improved corn yield, with an average increase of 6.86 bushels per acre, when Aproach® treated corn hybrids were compared to untreated controls.
DuPont™ Aproach® Prima fungicide uses two modes of action and has preventive, curative and eradicant activity against fungal disease. That means it control disease at all phases of the pathogen life cycle for corn, soybean and wheat diseases. On-farm strip trials done in 2015 and 2016 showed an average $14-per-acre return on investment when Aproach® Prima was applied to corn, and an average $11-per-acre return on investment in soybeans.
DuPont™ Aproach® and Aproach® Prima are not registered for use in all states. Contact your local DuPont sales representative for details and availability.
The information provided on this website is for reference only. Always refer to the product labels for complete details and directions for use.