Western Corn Rootworm – Bt Resistance Growing, Still Waiting on New Varieties – DTN Mar 20, 2020

🕔Mar 20, 2020
For more than two decades, Joe Spencer has spent many a summer evening standing atop 30-foot-tall towers above corn fields, trying to catch adult Western corn rootworm beetles as they […]

Illinois: Managing Corn Rootworm – Outlook for 2020 Mar 16, 2020

🕔Mar 16, 2020
Corn rootworm remains the greatest insect pest threat to corn in Illinois, despite low populations in recent years compared with historical averages. Resistance to Bt traits and crop rotation throughout […]

Illinois Bt Corn: Rootworm Resistance? You Still Have Options Jan 21, 2019

🕔Jan 21, 2019
The development of resistance to Bt Cry toxins by the western corn rootworm is a growing concern, highlighted by the recent confirmation of field-evolved resistance to Cry34/35Ab1 in Iowa. Across […]

Illinois: Western Corn Rootworm – Adult Sampling and Economic Thresholds May 31, 2018

🕔May 31, 2018
Based on degree day accumulations, western corn rootworm egg hatch should be underway in much of Illinois (roughly south of Peoria as of May 29; you can view your specific […]

Illinois Corn: Managing Corn Rootworm Populations in 2018 Mar 9, 2018

🕔Mar 9, 2018
Rootworm management is a yearly consideration for most corn producers in central and northern Illinois. Western corn rootworm is the primary pest species throughout most of the state, but areas […]

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