Tilling gave your coffeeweed seeds what they wanted, so up they popped! Control it by visiting your plots twice each summer, in June and August. Pull or chop any weeds you see. If you kill them before the seed pods open, you'll be making a continuous withdrawal from the "bank."

Will Roundup kill Sicklepod?

Roundup works great but will only kill what it contacts.

Will Roundup kill sedge grass?

Roundup is effective at killing all kinds of nutsedge. The Glyphosate in Roundup will infiltrate sedge plants through the leaves and travel to the root tubers, killing the sedge completely. ... Roundup will also kill turf grasses and any other plants exposed to the herbicide.