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1)My rose plant has just started growing leaves (perhaps a few weeks now), but now they’re already riddled with ?orange rust?…seeing orange spots on the leaves as it was before having been pruned. Does that immediately happen? I feel sorry for the young leaves being attacked by this. What could I have done or what can I do to stop this escalating?

2) My gardenia plant has always been coated with black soot both on leaves and stems. Since then it has remained small, leaves are small and yellowed (not a dark green colour) and has not flowered since then. What can I do? I’ve been trying to wash it off with water spray and even bought neem oil (but had not been very regular using it 🙂 ). Still the black soot is present. What more can I do?

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Hi Tonette,

1) This is most likely to be rust on roses, ideally to control this, a winter spray of Lime sulphur, Copper should have been done before and then after pruning, as well as the removal of any old leaves to prevent re-infestation. Once rust is on the plant it is not easy controlled, persistent spraying with Free flow copper is the only way. Sometimes it is a specific variety that always has this issue, you might want to consider removing this one for a variety that isn’t so prone to the rust

2) You will need to spray with Enspray oil and Free flow Copper (both Organic sprays) The oil will kill the insects that are causing the black soot the Copper will help dry up this soot that then will weather off over time (sometimes extended time) you will need to repeat this spray at least 2-3 times a year, every year. Gardenia will also benefit from a Dusting of Diamataceous earth during November to March to control thrips this will help with keeping the flowers that will appear

Thanks the Palmers Team

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