Rose Disease? - Ask Extension
All our roses look like these. We have used a fungicide on them, but that hasn’t seemed to help. We were wondering if they were dry and have start...
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Rose Disease? #754364
Asked June 06, 2021, 7:03 PM EDT
All our roses look like these. We have used a fungicide on them, but that hasn’t seemed to help. We were wondering if they were dry and have started watering them daily. These are not new plants, and they appear to be getting worse.
Chittenden County Vermont
Expert Response
Hi,
What fungicide did you use? I am wondering if there are pear slugs feeding on the leaf undersides? Can you take a look at the underside to see if you see a small slug-like creature eating the foliage. They just strip a layer on the undersides but make the top of the leaves look bad.
What fungicide did you use? I am wondering if there are pear slugs feeding on the leaf undersides? Can you take a look at the underside to see if you see a small slug-like creature eating the foliage. They just strip a layer on the undersides but make the top of the leaves look bad.
https://hort.extension.wisc.edu/articles/pear-slug-pear-sawfly/
Ann
I just sent you a picture of what we have. Did you get it? Now that we looked up pear slugs, I’m not sure that’s what they are. These are green; pear slugs appear to be black.
Shelli
Sent from my iPhone
Sent from my iPhone
On Jun 7, 2021, at 8:38 AM, Ask Extension <<personal data hidden>> wrote:
DId you send the picture to my email? I don't see it. It could be a rose slug, too, basically same critter. You could try spraying some insecticidal soap, Spinosad or Neem oil to control.
Ann
Ann
