No, I haven't heard of that product. Like so many garden chemicals, this one has probably been withdrawn from the market. Only a very few remain, which is why it's so important for gardeners to look for cultural ways to avoid/control problems, and choose resistant varieties where possible.
However, I'm not aware of any varieties of garlic that are resistant to garlic rust. Perhaps the weather won't be so wet this year, and the garlic will grow well. Fingers crossed!
