K-State Research and Extension will host a one-hour webinar starting at 9:30 a.m. on February 23, 2020, highlighting nematodes that kill corn rootworm larvae but are safe for plants.
There are many disease organisms that can reduce corn yields in Kansas. One of the stealthiest is the root-lesion nematode (RLN) because it operates below ground on the roots and often has no specific, identifiable symptoms other than yield loss. It is present, at some level, in nearly all corn fields in the state. Historically the largest yield losses, which can exceed 40 percent in individual fields, occur in western Kansas where irrigated, no-till, continuous corn production systems in sandy soils are common. Learn more about when and how to inspect RLN in your corn field.
Soybean cyst nematode (SCN) is a major problem in soybean fields throughout eastern and central Kansas. It is important to monitor SCN levels regularly to determine if management strategies, such as variety resistance and crop rotation, have been successful. Free SCN testing is available through the KSU Plant Disease Diagnostic Lab. Find out more in this article.