Like insects, diseases develop in predictable ways based on ­growing-degree accumulations, but diseases are driven more by moisture than are insects, which makes management more complicated. For both insects and diseases, predictive models are used, but insect models are more precise than disease models. The models used by New York growers are built into the http://newa.cornell.edu Web site to help growers with disease management. The NEWA network, developed by Cornell University, is being proposed as a national model that could be used by growers everywhere. Cornell University pathologist Dr. Kerik Cox says it requires time and effort to use models […]