Source:  NCSU COOPERATIVE EXTENSION, 8/23/22

I’ve been out of the office for the past couple of weeks at a national conference and on puppy parental leave. I finally had an opportunity to drive through our research orchards today and with these neverending afternoon rain showers GLS has finally exploded on our unsprayed trees in our “Glomerella Gala” block. With conditions still favorable for GLS and bitter rot, I encourage you to continue on 7 to 10 day fungicide application intervals throughout harvest. In some low-lying, particularly wet blocks you may even want to consider tightening to 5 day intervals for the final few weeks. While it might be extremely inconvenient to diversify fungicide programs based on cultivar harvest date, adapting cultivar-specific fungicide programs for cultivars highly susceptible to bitter rot may save a lot of heartache (and money) during storage. Here are some strategies:

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