In our data on file, V7 is the latest stage the Accomplish biochemistry (also found in Extract PBA) was applied in a corn program. In that trial, it was applied with UAN 32% and resulted in a yield increase of 1.5 tons/acre of corn silage compared to no Accomplish treatment. Based on the large body of data we have collected from more than a decade of field trials, we recommend that Accomplish/Extract biochemistry be applied no later than V6 to have the most impact in corn.