Fight tar spot this season

July 13, 2022 1:04 p.m.

Tar spot was one of the most detrimental and costliest corn diseases in 2021, so be prepared to fight tar spot with Veltyma® fungicide this season. Tar spot wasn’t identified in the United States until 2015, but it has spready rapidly and continues to have a drastic impact on corn. This disease has a very long latent period – the time between disease infection and visual symptomology appears. Tar spot also progresses quickly, with the ability to completely cover plants in as little as two weeks! Hence, the importance of preventative, planned fungicide applications. Waiting until visual symptoms appear is simply too late. Infections can begin as early as V8 and favorable environmental conditions for disease development include: temperatures between 60-70°F, high relative humidity (>75%), and extended periods of leaf wetness (which can often occur at night). Tar spot overwinters on corn residue, and spores can also blow in from neighboring fields.

Don’t wait until it’s too late – see how Veltyma compares to competitor products below.


This trial was conducted in Arlington, Wisconsin. All products were applied on July 7, 2021. Ear leaf pictures were taken 62 days after application on September 22, 2021. Veltyma® fungicide resulted in a 18.4 bushel per acre increase compared to the untreated control.


As the data above illustrates, Veltyma® fungicide effectively reduces tar spot and increases yields! Its expanded application window allows it to be applied as early as V10, and as late as R3. The wider application window gives you the opportunity to treat more acres and stop yield-limiting diseases like tar spot, in their tracks. It also helps combat environmental stress, further setting your crop up for success.

To learn more about Veltyma®’s performance in your local geography, visit: Veltyma® Corn Fungicide from BASF – RevX Fields or speak to your local BASF representative today!