Noticing a yellow glow in the upper canopy of your corn field? In this PCT Shorts episode, Jonah explains what’s causing late-season yellowing, how anthracnose top dieback and tar spot are showing up across Ohio, and why growers should be scouting fields now.

As corn rapidly approaches maturity under warm September conditions, growers are seeing increased disease pressure from foliar diseases and stalk rots. Jonah discusses how anthracnose top dieback can cause upper-canopy yellowing, why tar spot is becoming more prevalent late in the season, and how environmental conditions have contributed to disease development.

Key topics include:

• Identifying anthracnose top dieback symptoms
• Understanding late-season tar spot pressure
• Evaluating stalk strength and standability
• Recognizing stalk rot risks before harvest
• Prioritizing fields for harvest based on disease severity
• Protecting yield and test weight during grain fill

Learn what these symptoms mean for stalk integrity, harvest timing, and yield potential as corn approaches maturity. Be sure to scout fields, check stalk quality, and identify potential lodging risks before harvest begins.

For more agronomic insights and crop management recommendations, visit pctnutrients.com.