Question

We are located in the northern US and have heard researchers and other superintendents talk about the growth suppression effects of DMI or sterol inhibiting fungicides like Banner® Maxx®, Bayleton® and Eagle®. Should we not be applying them during the summer months when we can get some stress on the bentgrass?

Answer

Everyone has questions. And BASF Professional Turf has answers.

DMI fungicides like the ones listed above do have growth regulating properties and have been found to reduce turf quality during stressful periods of the year. Because of this, many superintendents will not use them during the stressful summer months, but use them at other times of the year.