Question:

Had a grower spray Ultra Blazer that received rain within 2 hours after application. This was five days ago, and the weeds do not look like they were controlled. The famer wants to know if a second application is okay?

Jordan:

Yes, that should be okay. If the weeds have gotten larger, especially Palmer amaranth, you may want to switch to Cobra. It is generally more effective on larger weeds than Ultra Blazer.