Wrage said weed watchers need to check for which kind of sowthistle they have. Scattered plants of an annual called spiny sowthistle seems to be shaping up through the middle part of the state, mostly in crop fields, Wrage said. It looks the same but has only a tap root. The leaves have coarse, greenish spines along the margin. As an annual, it's not as difficult to treat.
Bloom has just started, so action now can help.
With drier weather, some of the low areas are accessible.