SIGforum.com    Main Page  Hop To Forum Categories  The Lounge    What is wrong with my Knockout rose bushes?
Go
New
Find
Notify
Tools
Reply
  
What is wrong with my Knockout rose bushes? Login/Join 
Learn it, know it, live it
Picture of 1lowlife
posted
Can someone please tell me what my knockout roses bushes are doing and what to do about it?
I have 10 across the back fence of the yard.
Most of them are fine.
2 of them have strange wilted new growth on them.
1 of those the leaves are a little yellow.
Any input appreciated..











 
Posts: 4442 | Location: Great State of TEXAS | Registered: July 05, 2008Reply With QuoteReport This Post
Firearms Enthusiast
Picture of Mustang-PaPa
posted Hide Post
I have not had this on mine but i was warned last year about this going around from john the local respected yard guy.
He said if i saw this on mine to get it removed asap as was no cure and would keep spreading to to other bushes.
Be sure to bag and dispose of the affected plants and dont compost the diseased plants.


Also post this on neal spearrys facebook page to get the skinny and latest on how to handle this.



I would also de leaf all the trunks on the bushes you leave that are healthy to promote better air flow in the bushes and to also stop the spreading of the disease.

Also mix up some bleach and water to dip you cutters into to keep from spreading the disease to the un infected plants.
 
Posts: 18226 | Location: South West of Fort Worth, Tx. | Registered: December 26, 2008Reply With QuoteReport This Post
Learn it, know it, live it
Picture of 1lowlife
posted Hide Post
quote:
Originally posted by Mustang-PaPa:
I have not had this on mine but i was warned last year about this going around from john the local respected yard guy.
He said if i saw this on mine to get it removed asap as was no cure and would keep spreading to to other bushes.
Be sure to bag and dispose of the affected plants and dont compost the diseased plants.


Also post this on neal spearrys facebook page to get the skinny and latest on how to handle this.



I would also de leaf all the trunks on the bushes you leave that are healthy to promote better air flow in the bushes and to also stop the spreading of the disease.

Also mix up some bleach and water to dip you cutters into to keep from spreading the disease to the un infected plants.


Thank you PAPA..
I just went out, removed the affected stems, and trimmed out the clutter on the trunks..

I'll look into Sperry's FB page as well.
I used to listen to him on KRLD..
 
Posts: 4442 | Location: Great State of TEXAS | Registered: July 05, 2008Reply With QuoteReport This Post
Firearms Enthusiast
Picture of Mustang-PaPa
posted Hide Post
He is or was very fast to respond on fb.

It may have already been addressed so do a little reading on his pages.
 
Posts: 18226 | Location: South West of Fort Worth, Tx. | Registered: December 26, 2008Reply With QuoteReport This Post
Dances With
Tornados
posted Hide Post
Rose Rosette Disease.

I’ve lost ~50 rose bushes from this.

There is no cure. Yet. Hopefully one can be found.

It will spread, infect and kill all the other roses.

Pull them out, place in big plastic trash bags, try not to spread the dirt or foliage.

And a good point as mentioned above, after trimming or cutting roses, clean and disinfect your pruners. A strong bleach water mix works well. Do this even on healthy roses.

Link


Neil Sperry Link
.
 
Posts: 12064 | Location: Near Hooker Oklahoma, closer to Slapout Oklahoma | Registered: October 26, 2009Reply With QuoteReport This Post
Paddle your
own canoe
Picture of BigWhup
posted Hide Post
quote:
Originally posted by OKCGene:
Rose Rosette Disease.

I’ve lost ~50 rose bushes from this.

There is no cure. Yet. Hopefully one can be found.

It will spread, infect and kill all the other roses.

Pull them out, place in big plastic trash bags, try not to spread the dirt or foliage.

And a good point as mentioned above, after trimming or cutting roses, clean and disinfect your pruners. A strong bleach water mix works well. Do this even on healthy roses.

Link


Neil Sperry Link
.


This is correct, it is caused by microscopic mites. Those growths are called "witches broom", but I have seen worse. I just dug up a Drift rose yesterday and I am hoping it doesn't get the rest of mine.

Word is that it is not spread by transmission from your pruners though.

No cure they say but I used multipurpose systemic on mine anyway since I had it on hand.
 
Posts: 1577 | Location: South Carolina | Registered: August 06, 2009Reply With QuoteReport This Post
Optimistic Cynic
Picture of architect
posted Hide Post
My immediate thought was "overspray from a lawn service," but it certainly could be mites.
 
Posts: 6945 | Location: NoVA | Registered: July 22, 2009Reply With QuoteReport This Post
thin skin can't win
Picture of Georgeair
posted Hide Post
quote:
Originally posted by BigWhup:
quote:
Originally posted by OKCGene:
Rose Rosette Disease.

I’ve lost ~50 rose bushes from this.

There is no cure. Yet. Hopefully one can be found.

It will spread, infect and kill all the other roses.

Pull them out, place in big plastic trash bags, try not to spread the dirt or foliage.

And a good point as mentioned above, after trimming or cutting roses, clean and disinfect your pruners. A strong bleach water mix works well. Do this even on healthy roses.

Link


Neil Sperry Link
.


This is correct, it is caused by microscopic mites. Those growths are called "witches broom", but I have seen worse. I just dug up a Drift rose yesterday and I am hoping it doesn't get the rest of mine.

Word is that it is not spread by transmission from your pruners though.

No cure they say but I used multipurpose systemic on mine anyway since I had it on hand.


Had this take out several / all of ours in McKinney. Nothing will save them unfortunately.



You only have integrity once. - imprezaguy02

 
Posts: 12890 | Location: Madison, MS | Registered: December 10, 2007Reply With QuoteReport This Post
Member
Picture of barndg00
posted Hide Post
Lost all our Knock Outs to this in the back yard over the past 2 years. I might have been able to slow it if I had recognized it earlier. It has even hit a couple of my Hybrid tea roses, though much less severe, may be able to save them, they are more resistant to it. Cut each stalk affected far back to the trunk, burn the trimmings. Once started though, unlikely to be able to save them...
 
Posts: 2171 | Location: NC | Registered: January 01, 2006Reply With QuoteReport This Post
Member
Picture of cparktd
posted Hide Post
Unless there has been a breakthrough in the last year or so the only thing you can do is start planning what you are going to grow in their place.

All mine were gone in about three years after the first symptoms appeared and I dillagently removed the diseased ones and sprayed insecticide at first to no avail. It persists even in the soil.



Collecting dust.
 
Posts: 4219 | Location: Middle Tennessee | Registered: February 07, 2013Reply With QuoteReport This Post
  Powered by Social Strata  
 

SIGforum.com    Main Page  Hop To Forum Categories  The Lounge    What is wrong with my Knockout rose bushes?

© SIGforum 2024