Submitted by Jeff Shaner, Product & Technology Manager/Soybeans & Alfafla.
The wind and rain we had not long ago brought Bacterial Blight infections to our soybean fields locally. Some well-meaning people will be telling you that you have Frogeye or Soybean Rust and that they had better spray as fast as they can. Bacterial infections are not affected by foliar fungicide applications (although some copper treatments are labeled for soybean and will help only if applied early in the disease cycle). Some soybean varieties tolerate BB better than others. Infected plants will live on and you will see that the new growth will not show symptoms.
If you have questions about your fields, contact your local AgVenture Regional Seed Company and they will be happy to help you.