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newbieroselover

Please help me understand lime sulfur and dormant oil

newbieroselover
19 years ago

Hello everyone, could you please tell me how and when to use LS and dormant oil to prevent blackspot? Is lime sulfur considered organic? Also, some of my roses have retained green leaves and new growth over the winter. Does that make a difference whether I can use these treatments?

Thanks,

Janice

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