Texas Corn: Sorting Through Rootworm Beetle Bt Efficacy Differences

🕔Sep 2, 2019Last year we had huge numbers of corn rootworm beetles in corn around Hart in early July, and I wrote at the time that they were “probably resistant” to the mCry3a rootworm […]

Texas Cotton, Corn: Bollworms, Bt Resistance, and Field Scouting

🕔Aug 27, 2019Transgenic crops are an ever-evolving technology dealing with pests in the corn, cotton and sorghum fields in Hale and Swisher counties of Texas. Farmers began relying upon these technologies in […]

Canada: European Corn Borer Bt Resistance Confirmed

🕔May 17, 2019It was recently confirmed that European corn borer (ECB) has developed resistance to the Cry1F protein in Bt corn in Nova Scotia. More information on this issue can be found […]

Texas: Bollworm Resistance to Bt Crops – What to Do?

🕔Mar 19, 2019Cotton and corn are major cash crops in Texas with a market value of over 3 million dollars combined in 2016. With this much money at stake, producers are looking […]

Mississippi: Bt Corn – How Effective Against Corn Earworms?

🕔Mar 15, 2019The number of commercial corn hybrids expressing the Vip trait (Leptra, Viptera, and Trecepta) is increasing, and they are being marketed for improved control of ear feeding insects, including corn […]

Tennessee Corn: Bt Refuge Requirements – Podcast

🕔Feb 21, 2019Dr. Scott Stewart updates you on Bt refuge requirements for corn and discusses Viptera trait in our latest Call of the Week.

Tennessee Bt Corn: Resistance and Variety Selection – Podcast

🕔Jan 22, 2019After a brief hiatus, the Call of the Week podcast is back. This week’s episode features Dr. Scott Stewart discussing Bt traits, resistance and variety selection.

Illinois Bt Corn: Rootworm Resistance? You Still Have Options

🕔Jan 21, 2019The 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 […]

Minnesota Corn: Reducing Bt Trait Acres in 2019? Implications for European Corn Borer

🕔Dec 18, 2018Editor’s Note: For accompanying charts and figures see original article at the Source URL below. The economics of 2018 corn production challenged many farmers to minimize losses per acre. One […]

Nebraska Corn: Which Bt Traits Do You Need to Buy?

🕔Nov 20, 2018When it comes to buying corn seed, one way to save money is to ensure you are not investing in GMO insect protection traits you do not need for your […]

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