Roses forum→Insect identity and what is happening

Views: 196, Replies: 5 » Jump to the end
Zephyrhills, Florida
Jhogsett90
Aug 12, 2020 7:17 PM CST
Hi! I am unsure what the bug is and what's happening with my rose bush. They were healthy and now I don't think they are now. Please help
Thumb of 2020-08-13/Jhogsett90/6d225e


Thumb of 2020-08-13/Jhogsett90/e3fae4


Thumb of 2020-08-13/Jhogsett90/f55011


Thumb of 2020-08-13/Jhogsett90/4348e8

Name: Mike Stewart
Lower Hudson Valley, New York (Zone 6b)
I was one of the first 300 contributors to the plant database! Photo Contest Winner 2020 Garden Photography Roses Bulbs Peonies
Lover of wildlife (Black bear badge) Dog Lover Cat Lover Birds Enjoys or suffers cold winters Region: New York
Image
Mike
Aug 14, 2020 7:21 AM CST
Hello, and welcome to the forum. The insect is a common stink bug. They secrete an awful smelling liquid when threatened (or squished), but have nothing to do with the leaf damage of your roses. He's just wandering through.

I suspect the leaf damage is fungal in nature, as it's affecting the leaves and their stems, but the younger canes look green and healthy. Apply a fungicide spray to prevent further spread and leaf drop. Most fungicides are preventive in nature (meaning they will help prevent the spread to healthy leaves), but they do not stop the infection in leaves and stems that are already infected. You'll need to spray every couple of weeks, depending on the product's label instructions.
[Last edited by Mike - Aug 14, 2020 7:23 AM (+)]
Give a thumbs up | Quote | Post #2327488 (2)
Name: David Tillyer
New York City (Zone 7b)
Image
BigAppleRoseGuy
Aug 14, 2020 9:07 AM CST
Hate stink bugs!
Name: Zoƫ
Albuquerque, New Mexico (Zone 7b)
Region: New Mexico Herbs Salvias Composter Bee Lover
Image
nmoasis
Aug 14, 2020 9:42 AM CST
Actually, I think that might be a squash bug. Probably not a threat to your roses, but if you've got cucurbits in your veggie garden (squash, pumpkins, cucumbers, etc) you might want to watch for clusters of eggs on the undersides of the leaves.
https://ag.umass.edu/vegetable...
For me, gardening is really just an excuse for playing in the dirt. Admittedly, plants are a satisfying by-product.
Name: Mike Stewart
Lower Hudson Valley, New York (Zone 6b)
I was one of the first 300 contributors to the plant database! Photo Contest Winner 2020 Garden Photography Roses Bulbs Peonies
Lover of wildlife (Black bear badge) Dog Lover Cat Lover Birds Enjoys or suffers cold winters Region: New York
Image
Mike
Aug 14, 2020 11:31 AM CST
Zoe's right; I stand corrected. It's a squash bug.
Coastal Southern California (Zone 13a)
Image
jerijen
Aug 14, 2020 12:00 PM CST
You've had a tremendous amount of rain there in FL, yes? If your weather ever dries out, the fungal problems may really not be as bad.

OR, depending upon the susceptibility of the rose, it may be awful.

Personally, if a rose has really severe fungal problems, it doesn't stay here. I have dogs. I don't spray.

« Garden.org Homepage
« Back to the top
« Forums List
« Roses forum
Only the members of the Members group may reply to this thread.

Member Login:

[ Join now ]

Today's site banner is by Fleur569 and is called "A visit to Cape Primrose"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.