With lower seed costs, low rootworm populations, and premiums paid on non-GMO corn, many growers are making the switch to growing non-Bt corn hybrids. Find out how scouting can help reduce the risk of transitioning.
For the past few years, folks in Pennsylvania have heard reports from Midwestern states of continuous corn growers struggling to control populations of western corn rootworms that developed resistance to some Bt corn varieties.
For folks growing continuous corn, western corn rootworm is a serious pest that needs regular attention. Most growers in Pennsylvania seem to be aware of the ongoing struggle in the Midwest with populations of western corn rootworm that are resistant to some varieties of Bt corn.
On Aug. 24, 2012, in cooperation with Aaron Gassmann's laboratory, Iowa State University, the evolution of field resistance by corn rootworms to the Cry3Bb1 protein was confirmed in some problem fields located in northwestern Illinois (Henry and Whiteside Counties).
Purdue and University of Illinois researchers have discovered a novel corn mutant whose leaves are highly susceptible to attack by Western corn rootworm beetles, a pest that feeds primarily on corn silks and pollen.
Every year Iowa State University (ISU) Extension and Outreach provides private pesticide applicator training covering a variety of pesticide safety and pest management issues. In response to reported incidences of Bt-resistant corn rootworm, a series of remote "clicker" questions were developed to survey current corn rootworm management practices and assess the degree to which farmers perceived resistance in 2012.
Kuhn Krause's focus, above all, is to continue to produce quality products to serve producers better; to strive to respond to their needs with new tools and new technology to meet their growing challenges. Agronomic practices are constantly changing, and at a faster pace now than ever.