The Usual Suspect: Black Spot !!!!
I have had very good results generally growing roses, with the exception of a continuing fight with black spot.
The humidity is virtually 100% (well, almost :) ) year round, and that doesn't help things one bit. And like right now, it's been raining most of the day, with overcast skies, temps in the 60's, and there will be no sun to dry the plants; an almost guaranteed recipe for black spot.
I've seen many things recommended, and Bayer 3 in 1 is sounding better all the time, but in the past I've used Mancozeb, a variant of Compass, acephate (ant killer actually), and Banner Max.
I'm sure this has been addressed many, many times, but are any others here plagued with this problem ? And if so, how do you prevent and/or control black spot.
I've seen Compass advertised as the end-it-all, genuine product for black spot, but for what the stuff costs, I could practically purchase all new roses :) !!! ($450 ??!!).
As stated, I know this has probably been discussed to the Nth degree, but any advice or recommendations would be very much appreciated.