Red Crown Rot Emerges in NEMO: Expert Advice from MU Extension’s 3rd Annual Chat
PROTECTED CONTENT
If you’re a current subscriber, log in below. If you would like to subscribe, please click the subscribe tab above.
Username and Password Help
Please enter your email and we will send you a password reset link.
By Ella Aguilar,
NEMOnews Media Group
Marion County, Missouri – Red crown rot, a significant soybean disease, has been confirmed this year in Missouri, specifically in Marion County. This discovery, reported by the University of Missouri Extension on August 3, 2024, has raised concerns among local farmers and agricultural experts.
The 3rd Annual Crop and Forage Chat, hosted by MU Extension office, discussed red crown rot, tar spots, spraying protocols, successful storage protocols and much more. Nick Wesslak, Agronomy Field Specialist for the MU Extension office, prioritized his presentation over red crown rot and tar spots.
Red crown rot is known for its distinctive symptoms, which include:
•Reddish discoloration at the base of the stem and root near the soil line.
•White fungal growth (mycelia) on the roots.
•Red spheres (perithecia) on the roots.
•Yellow spots on upper canopy leaves, progressing to brown spots between leaf veins.
The disease can cause substantial yield losses, ranging from 15% to 70% in affected areas. This makes early detection and management crucial for minimizing its impact on soybean crops.
During the 3rd Annual Crop and Forage Chat hosted by MU Extension, experts shared valuable insights on managing red crown rot. Key strategies include:
•Crop Rotation: Rotating to non-host crops like corn for two years can help reduce the disease’s prevalence.
•Fungicide Seed Treatments: Using fungicide seed treatments labeled for red crown rot can protect young plants.
•Minimizing Disease Spread: Cleaning machinery between fields can help prevent the spread of the disease.
Local Resources
Farmers dealing with red crown rot can seek assistance from the MU Plant Diagnostic Clinic, which offers detailed information and support for managing this disease.
The emergence of red crown rot in Marion County is a significant development for Missouri’s soybean farmers. By staying informed and implementing effective management strategies, farmers can mitigate the impact of this disease and protect their crops.