Figure 2: Henderson-Tilton % control of slender aster.Percentages were calculated using the Henderson-Tilton formula based on treated vs. untreated plots. Trials were initiated on June, 1 2011, and May 2, 2012, in College Station, TX. Bioherbicide was split applied in 2011, and single applications were made in 2012 at trial initiation. Means followed by the same letter are not significantly different according to Tukey’s Test (P ≤ 0.05).