In article , Scopata Fuori
wrote:

Tell me, how do you know it is safe to mix Mancozeb with everything else?
Can I mix it with my Orthenex to try to wipe out existing bs? (Missed a
spray date.) I have Manzate too.

I don't know about Orthenex, but I have read the labels and by the
information I've read, it can be mixed with a lot of theings. Some labels
specify not to mix them with anything else, and those I do spray first,
without anything else.

The Rosemania site specifically mentiones adding Mancozeb to Banner Maxx, s
do severla of the local rose society webpages. And it's worked for me!
Banner Maxx is a systemic, whereas Mancozeb is a "contact" killer.

Using multiple agents is common enough that each manufacturer includes
a statment on their label describing what can be mixed and which must
have pH adjustment of the water and which must be used with a sticker
spreader.