Monday, October 15, 2007

Martha Gonzales Rose and Blackspot.

These are pretty plants, but they are VERY vulnerable to blackspot. I brought three of these home several weeks ago, and within days they were already showing signs of fungus. The plants are holding up relatively well, but the stress seems to be keeping them from blooming as well as they might.

I have tried using a sulfur-based Safer brand fungicide. No Dice. I guess neem oil is the next option, until I have a convenient opportunity to get my hands on some compost tea.

According to what I have read, most other antique rose varieties are resistant to fungus, which is why they generally survive pretty well in our humidity. It figures I'd pick one that isn't. I'm not giving up yet, though.

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