New trapping network for corn rootworm
Western and northern corn rootworms are serious corn pests in Iowa and the Corn Belt, reportedly responsible for over 1 billion dollars in yield loss and control costs annually in the United States. The larvae tunnel into and consume corn roots, which can reduce nutrient and water uptake (Figure 1). Extensive feeding can completely eliminate roots and cause lodging. One node (about 10 roots) of injury equates to approximately 15% yield loss under normal field conditions and even more when plants are drought-stressed.