Showing posts with label rose rosette disease. Show all posts
Showing posts with label rose rosette disease. Show all posts

Sunday, November 13, 2022

November Notes

Dr. and Mrs. ProfessorRoush set out on a quick run for tacos and Crumbl Cookies® last night, a quest for the perfect Saturday night snack combination.  Well, that, and Mrs. ProfessorRoush has developed an addiction for the aforementioned establishment's iced sugar cookies and we needed to lay in a reserve stash in case she developed a craving when they're closed on Sunday.   Happy wife, happy life and all that.  Anyway, we had no more pulled out of the driveway than we saw a beautiful stag and doe framed in perfect sunlight in the neighbor's front yard.

Unfortunately we missed the chance for an equally perfect photo of the pair, but on our return home a mere 45 minutes later, I spotted this lurker hanging just around the back corner of the neighbor's house.  In the way of deer, he was probably just waiting to see if he could hang around until the cover of darkness when he would happily nibble away on the neighbor's landscaping, so I foiled him by driving down a side lane and spooking him.  Not before, however, I captured these images in the closing light of day, through the dirty windshield, but still not a bad picture.  He's beautiful and I hope his proximity to town allows him to escape the hunting season since most folks around here don't shoot into the random horizon for fear of hitting a house.  Most folks, anyway.




I've got a busy week ahead, so I'm not making it a long post today.   I've got to spend some of today preparing for a Johnson County Master Gardener presentation about Rugosa and Old Garden Roses.  Since they're all that Rose Rosette disease has left me, you can bet that I'm going to touch on that hell-borne scourge as well.  Happily, I was in Kansas City a few weeks back and, in a large outdoor mall, captured this image (below) of three 'Knockout' roses in their landscaping, right, so-to-speak, in my audiences' back yard.   Most of the 'Knockout' roses on display there were exhibiting signs of RRD, so I think this picture will drive home my point about growing and breeding RRD resistant roses.




Sunday, May 30, 2021

Not La Ville de Bruxelle?

Well, it's a pretty rose, but it isn't likely 'La Ville de Bruxelles', now, is it?  In my search for Old Garden Roses and Hybrid Rugosa roses that might have a chance to resist the Rose Rosette virus, I had ordered this Damask from Heirloom Roses in 2019.  Last year, it bloomed just a couple of blooms, a small wisp of a plant, and I was primarily only concerned for its survival.  This year, it's blooming profusely, and whatever it is, it doesn't seem to be what it's supposed to be, at least not yet.

The color is not far off 'La Ville de Bruxelles', a clear deep pink, and the rose only bloomed once last year (and will, I presume only once this year), but everything else about it is wrong.  These blooms are not the tightly packed, fully double blooms of the Damask, nor are they the expected 3-4" size.   The blooms on my specimen are easily 5-6" in diameter, loosely organized and semi-double to double, appearing more modern than any Damask rose I've seen in the past.   They open, as you can see below, to a more flat form with golden center stamens and an often white strip   The foliage of the bush is matte green, and healthy as anything, but the canes are long and sprawling, with small thorns.   Fragrance is strong, with sweet OGR tones, certainly no hint of the spice of a rugosa. 

For someone who likes to know the denizens of his garden, it's a bit frustrating to receive a rose that isn't it's namesake, and it is unusual for Heirloom Roses to mislabel a rose in my experience.  I suppose it's possible that this bush will gain more double blooms as it grows and matures, but that sumptuous color is just far too perfectly pink for an Old Garden Rose, no mauve at all, just pink.  And the size!  These blooms are enormous, bigger than any other rose in my garden.   I considered Hybrid Perpetual 'Paul Neyron' due to the blooms size, but, again, the color is just too perfect and even 'Paul Neyron' is more double than this seems to be; not to mention that my rose doesn't rebloom as a Hybrid Perpetual does.   A cross between something modern and Rosa gallica is, I think, a far more likely provenance for this unknown creature of my garden. 

I shouldn't care, I know, since it shows no signs of Rose Rosette Disease, is cane hardy without protection from a very cold winter, and it has great color and fragrance.  What more can I really ask of a rose?  It will stay in my garden, just another mystery among mislabeled plants and my sometimes inaccurate plant maps.  In fact, I should just close my trap and accept it, because the bees certainly seem to like it.  Nature knows best.

Monday, April 24, 2017

Rosette Roundup

It's time, my friends, to report the results of the Rose Rosette Plague and Massacre of 2017.  I spent the weekend before last culling out the victims and mourning the holes left in the landscape beds, and there are still a couple of very sick individuals to tackle.  This weekend, I had a brief respite from the slaughter of so many innocent roses while I accompanied Mrs. ProfessorRoush on a short day-long journey.

The Newly Departed, dead or ripped from the ground and cast on a funeral pyre:

Folksinger
Prairie Harvest (2)
Double Red Knockout
Freisinger Morgenrote
Rosenstadt Zweibrucken
Carefree Beauty
Improved Blaze
The Fairy
Kashmir
Hot Wonder
Golden Celebration
Alba Odorata X Bracteata
Morning Blush
Charlotte Brownell
Prairie Star
Hawkeye Belle
Queen Bee
Champlain
Red Moss (2)
Variegata de Bologna
Cardinal de Richelieu
Lady Elsie May
Prairie Sunset
Alchymist
Winter Sunset

These are, mind you, just the roses that were showing Rose Rosette at the end of last year.  I have not kept count, but I've probably lost 50 roses to RRD, or at least 25% of the rose cultivars in my garden.   I have a number of other roses that just failed to return this year, but never showed any signs of Rose Rosette; were they weakened by disease and then finished off in a tough winter?

As far as groups of roses, the Rugosas seem to be the most resistant.  I've only had one, 'Vanguard', definitely affected with RRD, although I'm suspicious of my 'Conrad Ferdinand Meyer' at present (but who could be sure, given its already excessive thorniness?).  Most of my gallicas and albas seem to be resistant to RRD, although hybrids, like 'Morning Blush', are fair game.  The Griffith Buck roses are hopeless.  I've lost most of them, either due to RRD, or due to a combination of subclinical RRD and winter kill.  My remaining Griffith Buck roses are either pretty isolated in distance from the main rose beds, or they are probably living on borrowed time.  For those who are wondering, I don't believe the idea of cutting diseased canes off at their base has ultimately saved any rose and believe me, I tried.  When you see the disease, destroy the plant immediately.

I've filled some of the holes, after an appropriate waiting period, with new roses, primarily Rugosas or OGR's, hoping that they are resistant to RRD.  I just received starts of 'Moje Hammarberg', 'Fimbriata', 'Scabrosa', 'Armide', 'Georges Vibert', and 'Orpheline de Juiliet' from Rogue Valley and planted them today.   I also went on a "sucker" spree last week and transplanted suckers of 'Harison's Yellow', 'Souveneir de Philmon Cochet', and 'Dwarf Pavement' into a number of areas.   I'll probably regret the invasive possibilities of the 5 new clumps of 'Harison's Yellow' if they all live, but not until they get out of hand.  My roses are going to be overwhelmingly yellow and early in a couple of years.

While I was out with Mrs. ProfessorRoush, I acquired the metal rose shown in the photo accompanying this blog entry.  It may be prone to rust (sic), but I'll bet it doesn't become extra thorny nor develop witches broom growths from Rose Rosette Disease.  One way or another, I'm going to have roses in my garden, eh?

Sunday, October 23, 2016

Angry Autumn

'Beautiful Edgings'
I'm angry at my garden.  There, I said it.  I'm ProfessorRoush and I'm angry at my garden.  There's no getting around it, no glossing over it, no mincing words to mitigate it.  The first step on the path to mindful recovery is always, no matter the circumstances, to admit your transgression.  It's not rational and it's not reasonable, but I'm angry at my garden.

I'm sorry, friends, that I haven't posted in such a long time.  I've been emotionally disengaged from my garden since the last days of April, lo those many Kansas days ago.  Disengaged since the late hailstorm ruined my flowery May.  Roses, irises, peonies; I've missed them all. Fruit, any fruit, was nonexistent in my garden this year.  No strawberries, grapes, blackberries, apples, peaches, and but a few cherries. You'd think that the usual summer daylily bounty wouldn't have been affected, but even the daylilies were subdued, either from the hail, or from all the excess rain.  Yes, to add injury to the hailstorm, my summer was filled with rain, normally welcomed in a hot July, but this year the rain just added misery; sprouting weeds everywhere, making a mess of the vegetable garden, and drowning the tomatoes and peppers.  We are officially, currently 8 inches over our average annual rainfall of 24 inches.  Rain is normally viewed as a blessing here, but 1/3rd more rain than normal on a garden that I've primarily filled with drought-tolerant plants is not a positive development.

The weather, of course, isn't my only excuse for a lousy garden.  There has been competition for my attention by events at work and by life in general, both of which couldn't be put aside as easily as deadheading or fertilizing.  My limited forays into the garden this summer have been to attend to seemingly incessant mowing needs and by occasional blitzkriegs against the hungry hordes of weeds, the latter motivated whenever I couldn't see the normal plants for the wild grasses and pokeweed and thistles popping up everywhere.

I'm also ashamed to relate this to my fellow rosarians, but you might as well know now that I have lost the battle against Rose Rosette disease here.  I've diligently pruned it out as I've discovered it, but as the hot days of August arrived, it became apparent that almost all my modern roses have succumbed; nearly all the Easy Elegance roses, English roses, Canadians and, worst of all, most of my beloved Griffith Buck roses.  Anything with modern breeding, including some "less-rugose" Rugosa hybrids, has abnormal branching and thorns from hell.  If there is any solace, it is that the 'Knock Out' hybrids perished first.

I'm trying, right now, to regain a smidgen of enthusiasm and to reengage with my garden.  I've tried to relish the bright spots during a dismal summer, chief among them the 'Beautiful Edgings' daylily pictured here.  It has bloomed almost incessantly for 4 months now, an ever-blooming daylily if ever there was one, an offering of hope that I cling to with each new daily flower.  This morning, as the fall temperatures start to move in, I noticed that the last honey bees are using its spent blooms for night shelter, slow to move until the sun warms the petals.  And the center picture shows the few remaining buds on the plant this morning, the last apologetic gifts of a graceless garden.

I intend to rebuild this winter, to start anew in any number of spots.  I've chosen to delay my efforts in favor of the "nuclear option," seeking the help of the first frosts to chase the marauders from my grounds and clear the lanes of counterattack.  Next spring, I will see a new garden or freeze in the attempt, less rose-focused but still flush with Old Garden Roses and Rugosas, empty holes filled with low maintenance shrubs and grasses, beds simplified.  And I'm going to plant as many divisions of 'Beautiful Edgings' as I can manage.  

Sunday, April 19, 2015

sesoR deredruM

In homage to my daughter's love of The Shining, and for Danny Lloyd's great child acting in the movie of the same name, you should read the title of this entry backwards to find the true meaning....

I had a sad start to this gardening year as I assessed the damages done by our recent cold dry Winter and still dry Spring, but I still had to face the worst moments of the season last week during my garden spring cleanup.  This Spring will hereafter live in my memory as "The Year of the Springtime Rose Massacre."  I set forth a couple of weeks ago with sharpened secateurs, honed trimmers and spade, intent on ridding my garden of any visible signs of Rose Rosette disease.  'Amiga Mia', 'Aunt Honey', 'Frau Karl Druschki', and 'Benjamin Britten' were ruthlessly ripped at young ages from my Kansas soil.  Shovel-pruned alongside them were 'Altissimo', 'Gene Boerner', 'Grootendorst Supreme', 'Calico Gal', 'Golden Princess', and 'Butterfly Magic'.  I was particularly sorry to sacrifice my favorite siblings 'Mme Isaac Pereire' and 'Mme Ernest Calvat', and I will miss their intense perfumes and come-hither blossoms this summer.  A once-blooming climber from a previous rose rustling episode was yet another casualty, forever destined to be an unnamed memory.  With malice in mind, I also took advantage of the wholesale slaughter to rub out 'Sally Holmes'.  "Sally Homely", as I refer to her, was only showing questionable signs of Rosette disease, but I pruned her on principle, a token offering to the God of Healthy Roses.

Only 'Folksinger' remains as a possible Rosette Typhoid Mary in my garden, on life support since I know she was previously infected, but in her defense she has shown no further signs since a low cane-pruning early last year, and her new growth all looks healthy at this time.  Of note, 'Golden Princess' was the second I have lost to unmistakable signs of Rose Rosette.  Out of 200+ individual roses, is that a coincidence, or is this cultivar unusually susceptible to Rose Rosette?  And stalwart survivors 'Purple Pavement' and 'Blanc Double de Coubert' died back to their roots this year.  Did these tough old Rugosas succumb only to the cold and drought of winter, or are they also silent casualties of Rosette infection?  Both appear right now to be growing back from their roots, but I've never seen the slightest winter kill before on either rose here in Kansas.

Today, I aim to continue the rose carnage, but this time I'm facing a different foe.  My beloved 'Red Cascade' was a victim of a pack rat blitzkreig this winter and I'm going to destroy their nest and free him from bondage,  You can see the mulch-formed mass of the nest in the center of the picture at the left, surrounded by all the dead and sick 'Red Cascade' canes.  I'm sure my counterattack will involve a great loss of innocent young rose canes, but I will not rest until the fascist pack rats have been pushed back to their prairie homeland.

Friday, November 22, 2013

Rosette Reckoning

'The Magician' Rose Rosette
I suppose some are wondering why ProfessorRoush has been so quiet for the past 9 days?  I'd like to tell you that I've been on a fabulous vacation to a tropical isle, but truthfully I've just been swamped with lots to do and haven't the extra energy to write.  Well, that, and my gardening depression over what I'm about to show you.

Last Saturday, after the leaves finally were blasted off the roses by a cold spell, I used the opportunity of the bare stems to assay my roses for any signs of Rose Rosette disease.  And, of course, I found plenty of possible lesions, on 5 different roses to be specific.  One of the more definitive examples is pictured at the upper right, from a cane on 'The Magician', a recent shrub rose bred by Dr. John Clements.  The red arrow shows the thickened, thorny cane in question, originating from the much smaller branch indicated by the white arrow.

'Darlow's Enigma' Rose Rosette
Other lesions, such as that on 'Darlow's Enigma', pictured at the right, and 'Vanguard', pictured below left were a little less certain, but still highly suggestive.  The fourth and fifth possible victims are unfortunately two Griffith Buck roses, 'Iobelle' and 'September Song'. 

In the positive column, only a single cane was affected on each rose and each one high on the cane at that, and I wacked every one of these diseased canes off at the ground level in hopes that the virus didn't spread to the base.  I would also note that none of these roses are over 3 years old (are they thus more susceptible than established roses?) and that I found no lesions on any of  my Old Garden Roses or my "real" Rugosa Hybrids (I don't really count 'Vanguard' here since its foliage is not very rugose).


'Vanguard' Rose Rosette
On the negative side, two of these newly affected roses were Griffith Buck roses, increasing the affected number of those hybrids to 3/6 in my garden.  Thus 50% of the roses affected so far are Buck roses, although Buck roses do not account for nearly 50% of the roses in my garden.  Are they more susceptible?  Or am I seeing more on Buck hybrids because they constitute a majority of my "modern" rose hybrids; those that are not either Hybrid Rugosa or Old Garden Roses?  I don't know.

Sunday, July 21, 2013

Witches' Broom Arrives

The first words in my mind, about three weeks ago, as I discovered the potential disaster pictured to the right, was a horrible parody of Draco Malfoy in the first Harry Potter movie:  "It's true then.  Rose Rosette Disease has come to Hogwarts."  Read that statement with a really exaggerated English accent and you'll know how it sounded in my mind.  Crazy, I know, but somehow I must have neurons cross-firing between "witches' broom" and my mental images of the magical world of Hogwarts to make that connection.  And, yes, I'm a fan of the Harry Potter series, but, no, I haven't taken to calling my garden "Hogwarts."  I don't have a name for my garden.  Come to think of it, "Hogwarts" might be as good as any, but I'm guessing that Mrs. ProfessorRoush won't see the humor in it.


I digress, however, as I try to avoid the awkward subject at hand.  Although I'm not entirely 100% positive, I highly suspect that the misshapen foliage and canes show above are Rose Rosette Disease on my 'Golden Princess' rose.  I suppose there is always some faint hope that this was damage from herbicide drift, but that multi-prickled cane appearance and warped leaves are pretty damning evidence to the contrary.   The canes on this rose should look like the photo at the left, a more normal area of the bush. 

Either because of inborn psychology, or due to my veterinary medical training, I'm not one to wait around and ignore a potentially garden-fatal cancer.  I'm not Scarlett O'Hara in my garden, thinking I can worry about this tomorrow.  In my reading on Rose Rosette Disease, I know that immediate action is necessary to prevent spread to other roses.  Since I grow over 200 other roses, an epidemic of RRD is to dreadful to contemplate, a fear which also helped me take decisive action.

I immediately initiated the "one strike and you are out" philosophy used by other RRD victims.  I have chopped out every cane (yes, with an axe!) that appeared to have any disease and I included the roots of those canes, resulting in the small and normal- appearing remnant displayed to the right.  This rose has one chance, a chance possible only because it is an own root rose and I could divide it without splitting a bud union.  If it shows me any sign of RRD in the near future, then this remainder gets shovel-pruned immediately, day or night, rain or heat.  I know there is no wild multiflora rose within over 0.5 miles, so I don't know how it arrived here except in the Kansas wind, but I'm not going to baby a diseased rose in my garden.

In the interests of rose-related education, if you've never seen RRD, take a good look at that top photo.  Symptoms of RRD include excessive thorniness, leaf malformation, bright red leaf and stem pigmentation, enlarged cane diameter or elongated shoots, and "witches' broom", the latter characterized by a dense mass of leaves and stems growing from a single point.   The causal agent of RRD has recently been proven to be a negative-sense RNA virus in the genus Emaravirus (Laney AG, et al, J Gen Virology 2011:92:1727-1732), that is spread by the Rose Leaf Curl Mite (Phyllocoptes fructiplilus) mite.

One deformed leaf, and 'Golden Princess' is no more.  At least I've got another, ordered last Winter by mistake...or was it by fortuitous clairvoyant foresight?

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