A journal article published recently (July 2014) confirms that rotation-resistant and rotation-susceptible western corn rootworms are affected by Bt root tissue in a similar fashion. The citation for this article is provided below.
A new study answers a question that has baffled researchers for more than 15 years: How does the western corn rootworm — an insect that thrives on corn but dies on soybeans — persist in fields that alternate between corn and soybeans?
Finding solutions to the problems farmers face is what inspired Harry and Etta Yetter to open a small machine shop in west central Illinois in the 1930s. Today, four generations later, Yetter continues the tradition of solving agricultural problems to meet the needs of producers all over the world.
Needham Ag understands the role of technology in making better use of limited resources within a specific environment by drawing on a wealth of global experience to overcome the challenges facing today's farmers, manufacturers and dealers.