Rusty Spots
The8thChevronanswered grow question 6y ago
Calmag is a solid guess. You can get lockout from going too heavy on bloom nutes.
Gelato93weedanswered grow question 6y ago
dude is right, they look like rusty spots because this fungus is called rust and it comes very often, especially where there's too much humidity between the leaves and the soil. Rose plants almost always get it. It's not that invasive, so don't worry too much. Go to a specialized store and ask for a systemic fungicide for the rust on your roses. Spray the recommended dose, wait 2 weeks, and then repeat it. Avoid doing it on the flowers if they exist.
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