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Sara 4

The rose in question is one that I moved from our previous house, and it is a blue standard rose but I can't remember which one.  It isn't looking very well anyway (black spot I think, on the stem as well as the leaves and any advice on that would be greatly welcomed) but it is also absolutely covered in ants.  There doesn't seem to be anything to entice them, no aphids to milk and I don't know why else they might be so interested in this particular plant.  Any ideas?

Sara 4

Unfortunately not in a pot, and the surrounding roses have no ant activity at all, but thanks for trying!  Any other ideas out there?

Fleurisa

On a similar note, why do ants like to crawl around peony buds, when again there are no aphids?

Roy Hill
Fleurisa wrote (see)

On a similar note, why do ants like to crawl around peony buds, when again there are no aphids?

My guess (from observations) are that they are on the hunt for aphids to farm. I am assuming these are black ants.

BobTheGardener

Sara, they follow the hormone trails of each other so there may have been aphids on it which are now gone, but the ants will just keep following the trail for a while.  I saw a nature program where some (Army ants I think) broke of from the main trail and formed a circle - they eventually died of starvation.

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flowering rose

the ants are getting ready to harvest the aphids by puttting them there (watch) and farm them to their advantage thats why you put a oily rag round apple tree to prevent this.

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