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Post  Dunkinjean on 5/19/2012, 12:15 am

I know roses may be a bit off topic, but I consider them like my flowers.

I bought knock-out roses last year. They did well for awhile and then suddenly something started eating the leaves quickly! I tried a couple of things; marigolds next to them, sprayed with Safer product. Eventually they were very sickly and I just let them go.

Well, this year they were growing very well and now have flowers. But Lo and Behold - again!!affraid Something is eating the leaves - I am just not sure what it is since I do not see any bugs. But I believe it has to be bugs and not a virus?

A few days ago I tried the remedy of baking powder, water and liquid dish soap. Unfortunately, the leaves are still being chewed up.

Should I try the Safer product again or try something else?

Please help...

Tks
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Post  llama momma on 5/19/2012, 12:55 am

My knock out rose bush is 3 to 4 years old and currently has new reddish leaves about to unfurl. There are lots of older leaves that look really bad. I don't see bugs. I'm going to put some compost and worms casts around it and water it in well, just in case it's a nutritional issue and give the new leaves a boost. I'm wondering if the early hot spell then freezing temps damaged older leaves, maybe yours too? Later, when the Japanese beetles come out, oh boy, another battle is on....
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Post  walshevak on 5/19/2012, 7:31 am

I wish I could help with an organic method, but the only way I have ever been able to get a nice healthy looking rose bush to grow is with the systemic rose feed and insecticide granules. I stopped using it last spring and have a sickly black spotted yellow leafed bush. But it does have some pretty blooms. I figger the japanese beetles will strip off the leaves when they arrive.

Blaze climber

Roses help Dscn0616

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Post  Dunkinjean on 5/21/2012, 1:07 am

Well, since the roses are looking worst and something is feasting on the leaves, I decided to try the Safer 3 in 1 concentrate that you mix with water.

I sprayed all my roses today. It is suppose to rain overnite and tom so I will check on them Tues and spray again if things are not improving.

Tks for everyone's help! Roses help 109486
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Post  gwennifer on 5/21/2012, 2:41 am

Dunkin, don't forget to make use of your local Master Gardener's association. They would be able to help you diagnose what's getting your roses I bet.
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Post  sanderson on 10/7/2014, 12:03 am

Any rose experts out there? The leaves on one of my roses has yellow spots.  It is October so I don't know if it is a virus or fall change.  None of the others look like this.
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Post  CapeCoddess on 10/7/2014, 9:08 am

Not a rose expert but I grow some anyway.  They are way too fussy, IMO.  I'm anxious to hear the answer though since I'll probably see the same thing some day.
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Post  sanderson on 10/7/2014, 12:29 pm

I'm not a rose expert, either. I can prune decently but that's about it. My rose bushes get all kinds of ugly spots but this is the first time I've seen just yellow.

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Post  TCgardening on 10/8/2014, 6:49 am

sanderson,
  That looks like blackspot without the spot. Have you tried a fungal spray? Spray with sulpher or Kocide (copper) every 10 days. Spray both sides of the leaves. That usually beats back the blackspot.
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Post  sanderson on 10/8/2014, 10:37 am

TC, Thanks.

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