There are several buttercup species found in Indiana.
Marcelo Zimmer
Due to the recent cold wet weather, corn planted in late April has either struggled to emerge or the corn that did emerge may have been severely injured by frost events.
Quackgrass (Elymus repens) is a cool-season perennial grass, generally found in vacant fields or along roadsides that are not regularly mowed.
Every spring we receive phone calls and emails with concerns of the presence of poison hemlock (Conium maculatum L.) in pastures, fencelines, and field edges (Figure 1).
Scouringrushs and horsetails are known by many different common names such as snake grass, jointed grass, monkey grass or simply Equisetum to name a few.
Every spring we receive several calls and e-mails about a certain 3-foot tall weed with yellow flowers (Figure 1).
Every year growers may experience challenges when controlling winter annuals weeds or terminating cover crops with glyphosate, specifically when glyphosate is sprayed in cool weather conditions or tank mixed with atrazine or an atrazine premix.
Field work has progressed significantly in the past couple of weeks due to warmer temperatures.
The warmer temperatures in the past couple of weeks have allowed winter wheat fields in Indiana to green up and resume growth.
We have been getting lots of inquiries lately about fields that didn’t get planted to a corn or soybean crop, and have lots of weeds growing in them.
Pest&Crop newsletter -
Department of Entomology
Purdue University
901 Mitch Daniels Blvd
West Lafayette, IN 47907
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