What Field Scouting Isn’t Telling You

A touch a corn stalk in a corn field

Would you be OK with disease spreading through your crop unchecked and untreated for 2-3 weeks? Of course not. But if you rely on field scouting alone for corn disease identification, that may be exactly what’s happening.

Corn Disease Latent Period

Microscopic photography from BASF reveals that as many as 19 days can pass from the first gray leaf spot infection to visible corn leaf disease identification. Tar spot also has a long latent period; it can take 14-20 days before signs are visible. By the time early signs of disease in corn are seen with the naked eye, significant damage has already occurred in the plant and the disease is aggressively spreading throughout the field. Taking a wait-and-see approach to corn disease management can result in plant damage and potentially significant yield loss.


That’s the bad news. The good news is there’s a simple and effective solution that controls fungal disease and even improves yield potential in the absence of disease. The solution is Veltyma® fungicide from BASF. Corn growers who choose Veltyma fungicide as a planned fungicide application can find proven benefits that help make every bushel count.

Yield Improvement with BASF Plant Health

Growers constantly take calculated risks to maximize yields and minimize costs. Deciding when to spray or how long to wait — or deciding if a fungicide application is even necessary — often comes down to visual cues, and sometimes those bets don’t pay off.


BASF offers growers a rare commodity in the field of agriculture — confidence. Confidence that even if disease doesn’t strike your corn crop, a planned early fungicide application for corn isn’t wasted time or money. Veltyma fungicide features innovative BASF Plant Health technology that’s proven to reduce the impact of environmental stress and deliver an average yield increase of 11 bushels per acre over untreated corn acres1.

Agronomic Benefits of Veltyma Fungicide

Not all fungicides are created equal. Using Veltyma fungicide from BASF in a planned fungicide application in corn yields agronomic benefits, including flexible application timing, fast results, and excellent, lasting protection.

Flexible Corn Fungicide Application Timing

Veltyma fungicide application timing in corn offers up to a two-week-longer window than competitive fungicide products2. This flexibility means growers can work around unpredictable schedules and inclement weather. Veltyma fungicide can be applied by ground or air, offering flexibility over challenging terrain.

Faster Curative Activity & Longer Residual

Once applied, the fast uptake and curative activity of Veltyma fungicide helps stop disease spread in its tracks. Revysol® fungicide, the active ingredient in Veltyma fungicide, is the first and only isopropanol azole on the market. Revysol fungicide delivers broader, stronger, longer disease control because of its strong binding properties and rainfast staying power.

BASF Yields Value

You know your fields best, and BASF knows crop chemistry. The combination of field scouting, historical knowledge and a partnership with BASF for fungicide control offers significant benefits. Get the BASF advantage for your fields by contacting your local rep or finding a retailer near you today, and view BASF corn microscopy imagery for yourself.

1BASF partially/fully sponsored University or Consultant small-plot replicated trials, 2013-19. Pair-wise comparisons by product with Veltyma fungicide 7 fl oz/A, Miravis Neo 13.7 fl oz/A, Quilt Xcel 10.5 fl oz/A, Trivapro 13.7 fl oz/A, Stratego YLD 4 fl oz/A, Delaro 8 fl oz/A or Aproach Prima 6.8 fl oz/A applied to VT-R1 corn.


2Summary of 17 BASF or partially/fully sponsored university or consultant small-plot replicated trials. 2017-2019. GA, MS, 2-KY, 2-IA, WI, 2-NE, AL, 2-IL, 2-MO, 2-NC, TN. Trivapro 13.7 fl oz/A applied at VT-R1. Veltyma fungicide 7 fl oz/A applied at V10-V12, VT-R1 or R2-R3.


Always read and follow label directions. Revysol and Veltyma are registered trademarks of BASF Corporation. ©2023 BASF Corporation. All rights reserved.