Marestail is most easily controlled when in the seedling or rosette stage!
Doug Doohan, Ohio State University OARDC, Bugwood.org
Smooth and green cotyledon. Leaf often hairy, numerous, linear, crowded together around stem, later alternate.
Doug Doohan, Ohio State University OARDC, Bugwood.org
Marestail plants overwinter in the rosette stage, and remain in this low-growing stage through late April, followed by stem elongation (bolting) and growth to an eventual height of 3 to 6 feet. Plants that emerge the previous fall will start stem elongation earlier than springemerging plants
A great source for information (and the source of the above picture captions) is the OSU/Purdue Factsheet “Control of Marestail in No-till Soybeans“.
