This spring my flowers have not done well at all... looks like late blight!,A dusty covering on the leaves.... looks like little spores at times the stmes and leave astart dying off...... The problem is it looks like it has spread to my NEW DECK !!!! OMG!!! We have had a lot of rain this spring, But I got my new deck sealed withThompson's advanced water seal a week or so before it all started...the deck was built in December... then sealed in February...it now the surface vaires to and from black powdrery gray,dry,moldy,spores, at times! I am so upset:furious:! I think Thompson's should have protected better, but I need to know what to do to it now!!!