Roses forum: What's Eating My Roses?

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Name: Susan Pingitore
IL
SusanPing
Jul 5, 2018 10:15 AM CST
Please help! Something is chomping through the leaves on my rose bush. Two nearby bushes are not affected - yet!
Please tell me what I can do, if anything.
I live in Zone 5.
Thanks for your help!
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Susan
Coastal Southern California (Zone 13a)
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jerijen
Jul 5, 2018 12:37 PM CST
That looks like Rose Slugs at work. Look at the underside of the leaf for little green worms. Squish 'em.
Name: Susan Pingitore
IL
SusanPing
Jul 6, 2018 7:21 AM CST
I looked at the leaves. I didn't see any worms just one small iridescent colored fly which I killed. Is there anything else I can do? It looks like whatever it is has started to attack a nearby rose bush.

Thanks!
Susan
Name: Suzanne/Sue
Sebastopol, CA (Zone 9a)
Sunset Zone 15
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Calif_Sue
Jul 6, 2018 7:57 AM CST

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They are very small and sometimes hard to find. I usually find them after a thorough search and sometimes they are on the top of the leaves but usually underneath.
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Coastal Southern California (Zone 13a)
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jerijen
Jul 6, 2018 10:06 AM CST
Calif. Sue is correct. They are VERY small. And they aren't on every leaf. You can blast UPWARDS from underneath with a strong spray of water, and knock them off that way.

Poison -- insecticides -- are overkill for this pest. They will soon turn into sawflies, and fly away, and your roses will grow new leaves. Watch for them next year, and get them when there are only a few.

Here's some information:
https://extension.umd.edu/hgic...

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