Decline in rose garden by church - Ask Extension
Large number of rose bushes showing tiny deformed leaves- some are ok and even blooming right now. A couple peonies in the area also have leaf issues....
Knowledgebase
Decline in rose garden by church #869949
Asked May 24, 2024, 2:08 PM EDT
Large number of rose bushes showing tiny deformed leaves- some are ok and even blooming right now. A couple peonies in the area also have leaf issues. I have seen the area spot treated with weed killer last year. Would you suspect a virus or residual herbicide.
Dakota County Minnesota
Expert Response
Hi Cindy,
With both roses and peonies affected, this looks like residual herbicide damage. Sometimes perennials that were touched by herbicide drift or a mistaken application can come back year after year.
This is a good fact sheet:
https://yardandgarden.extension.iastate.edu/encyclopedia/herbicide-injury-garden-plants
Sometimes plants will outgrow this damage, but it can take years. The church may want to replace the plants.
Sorry! I hope this helps,
Thanks for your help. We found out the landscape company uses Ranger Pro 2 on the weeds around the rose garden which is similar to Round Up. Should we be concerned about any residual herbicide remaining in the soil if a year has passed ? Would hate to see new rose bushes being affected . Thanks again !
Sent from my iPad
Sent from my iPad
On May 24, 2024, at 4:31 PM, Ask Extension <<personal data hidden>> wrote:
Hi Cindy,
This product contains Glyphosate and you can replant a couple weeks after application. The chemical will be gone by now.
