Black spot on roses - Knowledgebase Question

Scappoose, Or
Avatar for pj314
Question by pj314
July 4, 2010
I have some old

Answer from NGA
July 4, 2010
Your fungicide will last several years without losing potency if you store it in a cool, dry location and keep it tightly capped. I use the neem oil based product called Rose Defense. It's a little more eco-friendly. But, since you already have the Ortho product, go ahead and use it up according to label directions. You wouldn't want to dispose of it in any other way.

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