Keep An Eye Out For Bacterial Leaf Streak In Corn

Jun 21, 2017

By Angie Peltier

Keep An Eye Out For Bacterial Leaf Streak In Corn

Last growing season (2016) a new corn disease called bacterial leaf streak (BLS) was confirmed in Illinois for the first time in DeKalb County. Symptoms of BLS include narrow yellow, tan, brown or orange lesions with wavy margins that occur between and along leaf veins (Figure).

While symptoms of this disease were observed in Nebraska as early as 2014, it took scientists several years to identify the pathogen that caused the symptoms. In 2016 the disease was found in nine states and the cause of BLS was identified - a bacterial pathogen called Xanthomonas vasicola. Field-, seed-, pop- and sweetcorn are all susceptible to this bacterial pathogen.

As symptoms of BLS can be observed as early as the seventh leaf growth stage, now is the time to become familiar with how to identify this disease in the field. Proper identification is of particular importance as similar to other bacterial diseases like Stewart's wilt and Goss's wilt, foliar fungicides are ineffective. Foliar fungicides can provide protection against infection by fungal and not bacterial pathogens.

A nice digital fact sheet was produced by University plant pathologists detailing what is currently known about identification and management of BLS. It is available for viewing and for download at the Crop Protection Network website.

Source: illinois.edu

Video: What Is Well Water Testing? - CountyOffice.org

What Is Well Water Testing? Understanding well water testing is essential for ensuring the safety of your drinking water. In this informative video, we will cover everything you need to know about testing your well water. We will explain the process of collecting samples, what contaminants to look for, and how often you should test your water. You'll learn about the significance of testing for coliform bacteria, nitrates, and harmful substances such as arsenic and lead. We will also discuss the importance of using a certified laboratory for accurate results and how to find one in your area.

Regular testing is key to maintaining safe drinking water, especially if your well is shallow or near surface water sources. We will provide tips on the best practices for sample collection, including the ideal time of day and the proper methods to avoid contamination. Whether you're a new well owner or have been using well water for years, this video will equip you with the knowledge to protect your health and the health of your family.