JWWC said:
Michele can I ask what you're spraying with weekly? Are you alternating or is it the same thing each time?
I use Headline or Cabrio if I'm out of Headline; Cabrio is just the granular form of Headline. I rotate with Propiconazole. I can't remember the brand name of the Propiconazole but it's one of the many generic forms of BANNER MAXX. I also use Daconil as my contact fungicide each time; I actually use Docket which is the generic for Daconil. I use Nickel CBM or Nickel Plus just depending on which one I have at the time also.
I usually see rust (if I'm behind in my spraying) when the insects are doing the most damage, spider mites mainly, which is spring and fall. Rust spores need an opening to get inside the plant (if it's not already in there) and insect damage is the perfect opportunity for the rust to invade. I used to spray every 2 weeks but decided this year to spray weekly. I will go back to every 2 weeks in the winter.
