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What's Wrong With My Rose?


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Posted
  • Location: Nr Appleby in Westmorland
  • Location: Nr Appleby in Westmorland
Posted

It did this last year too...bright, almost flourescent orange spots on the stems and underside of many of the leaves. Doesn't look like rust to me, but I don't know quite what it is.

Sorry about the crappy photos...best I could do at 9.30pm.

post-717-1244495243_thumb.jpg

post-717-1244495256_thumb.jpg

  • Replies 13
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Posted
  • Location: Ashford, Kent
  • Weather Preferences: Anything
  • Location: Ashford, Kent
Posted
It did this last year too...bright, almost flourescent orange spots on the stems and underside of many of the leaves. Doesn't look like rust to me, but I don't know quite what it is.

Sorry about the crappy photos...best I could do at 9.30pm.

post-717-1244495243_thumb.jpg

post-717-1244495256_thumb.jpg

looks like a type of scale insect

Posted
  • Location: Nr Appleby in Westmorland
  • Location: Nr Appleby in Westmorland
Posted

Do you advise DDT?

I did wonder about that, but the spots are furry and very irregular size and shape....so I'm not sure.

Posted
  • Location: Ashford, Kent
  • Weather Preferences: Anything
  • Location: Ashford, Kent
Posted
Do you advise DDT?

I did wonder about that, but the spots are furry and very irregular size and shape....so I'm not sure.

If you can dettch them with a thin blade then it's probably scale. If the spots are more firmly rooted then I would think its fungal. Not sure really??

Try a weak washing up liquid solution, scale insects hate it.

Posted
  • Location: Nr Appleby in Westmorland
  • Location: Nr Appleby in Westmorland
Posted

Too big for rust I think, and too bright an orange...but I could be wrong. I'll take some better photos tomorrow.

Posted
  • Location: Bedworth, North Warwickshire 404ft above sea level
  • Location: Bedworth, North Warwickshire 404ft above sea level
Posted

I think it's some sort of Rose gall wasp, not sure which one but they tend not to do alot of damage and can make interesting talking points.

Found a link to a page about galls in gerneral, hope this helps? http://www.hainaultforest.co.uk/5UK%20Galls.htm

Posted
  • Location: Nr Appleby in Westmorland
  • Location: Nr Appleby in Westmorland
Posted

I'm going to get my wasp traps out then. They're like mouse traps, only you use old lolly sticks for bait.

Posted
  • Location: Nr Appleby in Westmorland
  • Location: Nr Appleby in Westmorland
Posted

Here are some better photos taken this morning.

post-717-1244626388_thumb.jpg

So the little flecks look a bit like rust, but they're powdery and dusty...like the big specks, which look nothing like rust to me.

post-717-1244626407_thumb.jpg

post-717-1244626417_thumb.jpg

Here's a bit on the stalk...

post-717-1244626424_thumb.jpg

...and here it is sliced in to - no sign of any animal - straight into the stem.

  • 3 weeks later...
Posted
  • Location: Brixton, South London
  • Location: Brixton, South London
Posted
Try a weak washing up liquid solution, scale insects hate it.

Iwas intrigued to see in a gardening magazine recently a warning to the effect that under EU regulations relating to garden pesticides, the use of dilute washing up liquid as a garden pesticide is unlawful as it has not been specifically approved for that purpose!

God preserve us.

regards

ACB

Posted
  • Location: North Kenton (Tyne-and-Wear)6miles east from newcastle airport
  • Location: North Kenton (Tyne-and-Wear)6miles east from newcastle airport
Posted

Morning OON

check out the link below , looks like some kind of disease called Rose Rust

http://www.rhs.org.uk/advicesearch/Profile.aspx?pid=269

Posted
  • Location: consett co durham
  • Location: consett co durham
Posted

i agree defo rust.if the outbreak is on a small scale try smothering the putsules with a dab of vaseline.

good hygeine is the key to prevention.make sure you clear all plant debris after leaf fall.

it's not really one of the worst diseases to affect roses.

  • 6 months later...
Posted
  • Location: Ashford, Kent
  • Weather Preferences: Anything
  • Location: Ashford, Kent
Posted

Iwas intrigued to see in a gardening magazine recently a warning to the effect that under EU regulations relating to garden pesticides, the use of dilute washing up liquid as a garden pesticide is unlawful as it has not been specifically approved for that purpose!

God preserve us.

regards

ACB

This is correct to a degree, but it would be at the growers risk rather than unlawful. It would be unlawful for a washing up liquid manufacturer to claim a pesticidal action.

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