Diseases identified in corn, soybean, and wheat crop samples submitted to the university's Plant and Pest Diagnostic Clinic in the past three weeks are listed. Reports are grouped here by crop and reporting district.
Correct identification of insects and other pests and diagnoses of diseases starts by submitting quality samples. This outlines how best to submit plant samples to the university's Plant and Pest Diagnostic Clinic.
New to the Plant and Pest Diagnostic Clinic is Kyle Broderick, who became coordinator after working as an extension technologist in a University of Nebraska soybean pathology lab for six years. An article from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics.
Anthracnose in corn and soybeans was among the diseases diagnosed by the university's Plant and Pest Diagnostic Clinic in the last two weeks. See their report for soybean, corn, hops, and alfalfa. Clinic services will be reduced Oct. 12-19.
Stalk rots can be found in corn across Nebraska. This story addresses the risk factors and how to scout for stalk rots, assess stalk strength, and determine extent of damage in a field. Fields with high levels of stalk rot should be given priority at harvest to reduce yield losses due to lodging.
Southern rust has now been confirmed in corn in 26 Nebraska counties. As we confirm more Nebraska counties with southern rust, it's important to know that the vast majority of rust reports have been sparse and no fungicide application was required. Continued scouting is urged, as injury can be critical to the grain-fill through dough stages.