Purdue agronomy professors and graduate students work with various research projects in about eight sites around the area, Purdue professor Bill Johnson told participants in Purdue Weed Days at Throckmorton Purdue Agricultural Center.

Topics of conversation ranged from trends in the agricultural chemical industry to issues with powerful new herbicides to controlling particularly pesky weeds such as giant ragweed and Palmer amaranth.

Attendees included local farmers, staff members of the Office of the Indiana State Chemist and representatives of companies such as Bayer and Monsanto.