Update on Bacterial Leaf Streak of Corn in Nebraska
February 23, 2017
Bacterial leaf streak was first confirmed in the US in August 2016 when it was identified in Nebraska corn. It has now been confirmed in 51 Nebraska counties and found in corn fields across the Midwest. This article offers information on current status, identification, and management of the disease. Resistance is not currently available in hybrids and standard management measures of bacterial diseases will help mitigate but not eliminate damage.
What's Causing Black "Dusty" Corn?
October 14, 2016
What's that black dust that some growers are reporting at corn harvest? Plant Pathologist Tamra Jackson-Ziems discusses the cause
Harvest 2016 — When Corn Yields are Below Expectations
October 14, 2016
A review of 2016 growing conditions across Nebraska sheds light on a number of factors that may have contributed to reduced yield in individual fields. An understanding of these factors may be helpful when selecting seed for 2017.
Ear and Stalk Rot Diseases Becoming More Common in Corn Fields
October 13, 2016
Ear rot diseases have been observed and stalk rot diseases are becoming increasingly common. It’s important to scout for stalk rot diseases now to determine which fields are at greatest risk of lodging and should be harvested first. Although it is unknown if ear rot diseases are widespread, it’s also important to scout for ear rot diseases to know how to better handle affected grain at harvest to prevent or minimize impacts on grain quality.
Scouting for Stalk and Ear Rot Diseases
September 29, 2016
Stalk rot diseases are increasing in corn, causing top die-back in a number of fields, and ear rot diseases are developing in some fields. Scout fields now to help determine the need for any adjustments in your harvest management.
Stalk Rot Diseases Including Anthracnose Top Dieback Developing in Some Fields
September 9, 2016
While most of the Nebraska corn crop looks good, there is early evidence of developing stalk and crown rot diseases, including Anthracnose top dieback. Producers are encouraged to scout their fields for disease and prioritize those fields for harvest where lodging may become an issue.
Bacterial Leaf Streak of Corn Confirmed in Nebraska, Other Corn Belt States
August 26, 2016
Bacterial leaf streak disease of corn, caused by Xanthomonas vasicola pv. vasculorum, has now been confirmed in multiple Corn Belt states. First identified in Nebraska, the bacterial disease has symptoms similar to other corn diseases, such as gray leaf spot, but is managed differently.
Corn Ear Formation Issues Likely Correlated With the Loss of the Primary Ear Node
August 19, 2016
UNL agronomists and educators responding to grower questions surveyed a number of corn fields this week and found a range of corn ear issues: short husks, dumbbell-shaped ears, and multiple ears per node. The article describes and discusses the situation, potential stress agents, and the development of corn. It also encourages growers to check their fields pre-harvest to better assess causes of potential yield loss.