— by Dr. Jeff Whitworth and Dr. Holly Davis
Western corn rootworm larvae have been detected for the 1st time this year in north central Kansas. All were 1st instar larvae and most were still very small (recently hatched). Thus, if you have any fields of three-plus year continuous corn planted with corn rootworm susceptible varieties, the rootworm feeding may become more and more evident over about the next three weeks.
For more information on corn rootworm management, please see Corn Rootworm Management in Kansas Field Corn: https://www.bookstore.ksre.ksu.edu/pubs/MF845.pdf
For more information relative to all corn pests, please see the KSU Corn Insect Management Guide: https://www.bookstore.ksre.ksu.edu/pubs/MF810.pdf