Gloomy scale

[Treeaddict]

Any success treating a large infestation with horticultural soaps?

 

[Neill]

Check Steganosporium Ovatum
Might be that and not gloomy scale based on your photo

Timing with the Hort oil treatment is important- gotta hit it during the crawler stage for control to help but yes it can help reduce the pressure if your coverage is good.

 

[Treeaddict]

Check Steganosporium Ovatum
Might be that and not gloomy scale based on your photo

Timing with the Hort oil treatment is important- gotta hit it during the crawler stage for control to help but yes it can help reduce the pressure if your coverage is good.

Thank you Neill. I do believe you are correct in you diagnosis.