22,152 Garden Web Discussions | Roses
Here is a link to a full paper. Of interest is the picture of a diseased rose and the finding that this virus is whitefly transmitted.
" Our results showed that the virus was transmitted by whiteflies in a persistent manner and caused systemic leaf curling and stunting on host plants (Table 1)."
http://link.springer.com/content/pdf/10.1007%2Fs13314-014-0147-9.pdf
Here is a link that might be useful: link for above
From our county which is a major producer of tomatoes, there used to be no problems with white flies. Winter got 'em.
Then farmers started extending their tomato season (and getting more $$$ for the out of season vine ripened tomatoes) by growing their earliest tomatoes in poly houses, and along with the $$$ came some major white fly problems.
Fortunately the tomato growin' is about twenty to thirty miles down wind of my roses.
I had Jasmina for 2 or 3 seasons and got rid of it. Thorny and coarse with not too many flowers and the bunches hang on the ends of the stems drooping. I thought I would like this one, but not for me. Sorry for the negatives. Very hardy as I could tell here, we had some bad winters at the time. Hope you like it a lot more.. I perhaps should have grown it through a small tree or large shrub, or somesuch... instead I had it on a fence...not the best place in my view...
I'm in So CA by Disneyland so I can't comment on cold but I like my Jasmina very much. She grows in a Crepe Myrtle tree and the flowers hang down like lovely wisteria blooms. The little stems are thin at first but in a few years will get thicker. I just kept braiding them together until the shoots were thick enough to go straight up without flopping. She still wants to grow sideways sometimes. She has super catchy little hooks so wear old clothes gloves and goggles. I don't get any rebloom but maybe because I cant get up there to cut off the old flowers. This is probably most spectacular on a low fence where she can spread wide and you can remove the old blooms. I have her growing high because the flower clusters hang down and I like looking up into them.
In bloom this is one beautiful shrub/climber
Seil and KR - I'm sure I've had late growth like this, I've never noticed it to this extent before though. I recall a few times having a few blooms in late November and maybe early December. Kentucky Rose - Your frosty rose pictures were gorgeous. I think Saturday morning it got down to about 28. At least for the next week we're supposed to have highs in the 60's and lows probably in the mid 40's. We're supposed to have rain Monday evening into Tuesday. I have a few large buds that haven't opened yet, not many though. Souvenir de la Malmaison has several that I think will open in a few days. I can't wait to see what they look like this time of year.
The canes still look green. Try potting it up and see if it recovers. You'll need to keep it moist but not soggy and don't fertilize it until you see new leaves forming. In your cold zone it may not get any new growth now until next spring. Keep it very well protected for winter and see what happens.
The white stuff looks like some sort of insect infestation causing a variety bark scale, which can be scrubbed off, and the winter should take care of it shortly. I'm new to roses, but I've seen it on other shrubs like crape myrtles and azaleas.
You planted roses in the hottest part of the year if you planted them only 3 months ago. Three months ago was July 30th. They look toasted and no wonder. They are struggling to get going. They'll look better and grow better if we get some winter rains. The cooler weather will improve their looks greatly and you should see significant improvement by next April. That would be the time to start fertilizing.
Mulch. It keeps the soil cool, helps keep the soil moist, and as it breaks down adds nutrients to the soil.
I had some nice blooms open up--Gemini was almost at exhibition stage on Wednesday.
Typically, blooms are done by mid November. But, this year I have two dozen bushes in the front yard, where the microclimate is warmer--direct Southern exposure next to a busy road.
It was supposed to get down to 24 degrees here last night, I think it only got down to 28, think the roses are okay now. I'll have a few blooms, but not many. My roses look like they are setting on the spring flush, they are loaded with lots of little buds. I believe the almost spring like temps, combined with the rainfall made them think it was spring, I hope they don't get confused when it's really spring. LOL!
So yea it seems healthy enough again anyway. Winter is coming in Ireland now so I wouldn't expect any growth for the next few months.
I will feed it and keep the rootstock away and hopefully it will get stronger..
The other rootstock at the left, in the top image had already completely taken over.. there was nothing left of the graft..
"The Friends of the Berkeley Rose Garden has been very active over the past decade in restoring key historical features and improving accessibility to the garden. Working in partnership with City gardeners, the Friends continue to play a key role in improvements to the garden. The construction of a new entry and overlook on Euclid Avenue sparked new interest in the park. In response to the growing depletion of roses by hungry deer, a perimeter fence was erected in the late 1990s."
That looks like it should be a cover for a ballet program or on a poster outside the theater. Glad you got to see it in person.
They're very pretty-ice roses! What a great idea! Thanks for sharing. :-)