Pine Needle Cast

Hello:

I am a member of the Midwest Bonsai Society in Chicago. I have about 8 pines all Scots Pines and Mugos.

The have been in fine health for 3 years, but this spring noticed that all have needle cast to some degree.

It has been very wet here all spring.....trees have been treated twice with Daconil in the past weeks.

I believe I am supposed to remove affected needles and destroy.

Any other advise would be appreciated.

Best regards,

D/D