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JUNE 2010 Affiliated with the American Rose Society - www.ars.org Volume 44, Issue 5 Nashville Rose Leaf Official Publication of The Nashville Rose Society Serving Rose Enthusiasts Throughout Middle Tennessee Vl 44 I 5 Saturday June 5th NRS Meeting / Picnic Home & Garden of Larry & Connie Baird 12 Noon - Picnic Begins 1:00 pm - Lunch is served (Cont’d on Page 8) (Cont’d on Page 3) June Rose of the Month Rosa Mundi - A Sweet Remembrance By: Mary Bates Photo courtesy of Jean Sinclair - Scotland Rosa gallica Versicolor (Rosa Mundi) Sp. pink blend, semi-double, 1581 , fragrant, ARS rating 9.0 Known as the original striped rose, and still worthy of a place of honor in the rosarian’s garden, Rosa Mundi is a sport of Rosa gallica officinalis, a historic rose said to be the oldest cultivated form of the Gallica Rose and often thought to be the Red Rose of Lancaster. Rosa Mundi differs only in having its dappled mix of the palest blush and deepest raspberry petals striped and splashed with white. Flowering in abundance late in the spring rose season with its beautiful golden stamens, it is a rose whose blooms are greatly antici- pated by many rosarians. Recently while traveling in New Zealand, I discussed Rosa Mundi with several New Zealand rosarians and learned that When I was growing up, there was an old hymn we sang loudly in church...the opening words rang out: “About 5,000 years ago, old Noah built the ark, For God had said, it’s going to rain, the sky was getting dark...The animals had passed inside, the scoffers standing ‘round, Asked Noah if he thought he’d sail his vessel on dry ground....I can’t tell you how many times that song crept into my memory during the recent Nashville floods. Thankfully, most of us in the Nashville Rose Society didn’t suffer too much damage and my own family’s home and garden survived, though Nashville suffered upwards of 2 billion dollars in damage. In fact, from the looks of this spring’s blooms, the garden has actually thrived from all the rain (14+ inches in our rain gauge in 36 hours). This may be the most beautiful rose bloom season in years, at least in my garden. Almost overnight, the climbers and floribundas From The Ground Up “The Day of Rain and Roses” By: Leann Barron The garden of Dr. and Mrs. Max Johnson in Lake Village, Arkansas Photo courtesy of Leann Barron

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JUNE 2010 Affiliated with the American Rose Society - www.ars.org Volume 44, Issue 5

Nashville Rose LeafOfficial Publication of The Nashville Rose Society

Serving Rose Enthusiasts Throughout Middle Tennessee

V l 44 I 5

Saturday June 5th NRS Meeting / Picnic Home & Garden of Larry & Connie Baird

12 Noon - Picnic Begins 1:00 pm - Lunch is served

(Cont’d on Page 8)(Cont’d on Page 3)

June Rose of the MonthRosa Mundi - A Sweet Remembrance

By: Mary Bates

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Rosa gallica Versicolor (Rosa Mundi)Sp. pink blend, semi-double, 1581 , fragrant,

ARS rating 9.0

Known as the original striped rose, and still worthy of a place of honor in the rosarian’s garden, Rosa Mundi is a sport of Rosa gallica officinalis, a historic rose said to be the oldest cultivated form of the Gallica Rose and often thought to be the Red Rose of Lancaster. Rosa Mundi differs only in having its dappled mix of the palest blush and deepest raspberry petals striped and splashed with white. Flowering in abundance late in the spring rose season with its beautiful golden stamens, it is a rose whose blooms are greatly antici-pated by many rosarians.

Recently while traveling in New Zealand, I discussed Rosa Mundi with several New Zealand rosarians and learned that

When I was growing up, there was an old hymn we sang loudly in church...the opening words rang out: “About 5,000 years ago, old Noah built the ark, For God had said, it’s going to rain, the sky was getting dark...The animals had passed inside, the scoffers standing ‘round, Asked Noah if he thought he’d sail his vessel on dry ground....” I can’t tell you how many times that song crept into my memory during the recent Nashville floods.

Thankfully, most of us in the Nashville Rose Society didn’t suffer too much damage and my own family’s home and garden survived, though Nashville suffered upwards of 2 billion dollars in damage. In fact, from the looks of this spring’s blooms, the garden has actually thrived from all the rain (14+ inches in our rain gauge in 36 hours). This may be the most beautiful rose bloom season in years, at least in my garden. Almost overnight, the climbers and floribundas

From The Ground Up“The Day of Rain and Roses”

By: Leann Barron

The garden of Dr. and Mrs. Max Johnsonin Lake Village, Arkansas Ph

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Lean

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NASHVILLE ROSE LEAF, JUNE 2010 2

NRS PatronsOur thanks to the following

businesses and foundations who have made sustaining donations to support the educational pro-grams of Nashville Rose Society:

Houghland Foundation

President’s Column The only way I know to begin this month’s musings is to offer deep and sincere condolences to all who suffered loss in the unbelievable flood to hit our area the first of May. It is impossible to put myself in the place of many of our friends and neighbors who lost so much in such a short time.

As was announced at the May meet-ing, if you or some of your friends suf-fered loss or if you feel the gift of a rose bed would help to soften the blows to someone close to you, please let me know, and we will make roses available to possibly help the healing to begin.

If you missed the May meeting, you missed a great time and a very informa-tive program by our own Lynne Wall-man, on Old Garden Roses. Thanks Lynne for another job well done

Also our thanks to the Ellington Agri-cultural Center for a splendid facility in which to hold the meeting.

It was great seeing so many bring in your vases with flowers from your gardens, everyone seemed to enjoy see-ing what everyone else is doing, keep it up.

Ray Hunter has once again responded in fine fashion when asked to provide a service and has designed an outstand-ing tour of some beautiful local gar-dens. Don’t miss it. Many thanks to the members who have made their gardens available this year.

Don’t miss the arrangement work-shop that Jeff and Jennifer Harvey have scheduled for June 12. No matter your level of experience in flower arrange-ment, you will find something at this workshop to help you expand your en-joyment of our wonderful hobby.

Last but not least make plans to attend the June picnic/meeting at our home on the 5th, in Duck River, Tennessee.

Larry Baird —

The annual N.R.S. picnic will be held this year on June 5th at the Duck River, Tn home of Connie and Larry Baird. The cov-ered dish dinner as well as the opportunity to enjoy the fellowship of other rose lov-ers is always a very enjoyable occasion. So, pack up your famous recipe creation, load up the lawn chairs and come out and enjoy an afternoon in the country.

For planning purposes, the trip from Cheekwood to our door is approximately 1 ¼ hours. The address is 2571 Totty’s Bend Rd.,Duck River, TN 38454, if you want to use your GPS.

We will plan to eat after 1:00 p.m., but come on out early and enjoy a day in the country.

The fun begins with a leisurely drive down Hwy 100 W, through historic Centerville, Tn., about 2 miles west of the Centerville Square, take Hwy 50 E (left fork) for ap-prox 3 miles, turn left onto Totty’s Bend Rd and proceed for a little over 3 miles to 2571 (2 black mailboxes on post on the left) and you are there

For you folks in Hendersonville or west Nashville, Take I-40 to mile marker 172 (Dickson-Centerville) turn south (left) for 6 miles to Hwy 100 turn right and follow directions above

Due to the flooding and closing of sev-eral roads in our area, if you are coming from the Thompson Station, Columbia or Franklin area, call before you come and we will let you know which roads are re-opened to maybe make your trip a little shorter and easier. If you have a problem just call 931-729-5259

June PicnicEditor’s Desk It’s high time we introduce you to our next-door neighbors, Chris & Jackie Turner. While they are not (yet) as fanatical about roses as Jim and I, they are certainly our un-witting rose therapists. After all, it was this lovely couple (and their dutiful children) that helped us fell the mighty hackberry tree that was wreaking havoc on our roses. They are the kind of storybook neighbors that ev-eryone dreams of having who love to help people simply because a need exists… not that the resonating buzz of a chainsaw did not also play a role in Chris’ enthusiasm to help rid us of the tree. Although they clearly enjoy roses, they have remained content to grow them vicariously through Jim and I. (Smart folks. They are both engineers)

We love to see this happy couple in our garden admiring the roses and, oftentimes, bringing their guests over to do the same. Every so often, we have provided them with a vase full of roses and, just recently, their son, Jacob, moseyed over with an empty vase requesting a “fill up”. I was never par-ticularly excited when Jackie could point to a Dolly Parton or Fragrant Cloud and identify the rose by name, but recently she rattled off a series of rose names that caused Jim and I to raise our eyebrows and accuse her of be-ing “rosarian” material. Hmmmm? Still, she protest too much perhaps? Irrespective, we can always count on Chris and Jackie to love our roses, even when we do not. You see, we have not taught them how to identify black spot, spider mite or thrip damage or an on-coming case of botrytis. Standing in my rose bed, I can be ready to spit at every bloom when Jackie’s pretty face will show up and tell me how beautiful they are in her eyes.

For this reason, I recently promised her I would no longer corrupt her vision of my ros-es by pointing out all of their imperfections. I am humbled by her innocent reminder that every rose is a beautiful rose and I have re-committed myself to this sentiment…. .per-fect center or not! Chris and Jackie just re-cently purchased and planted their first roses and, um, isn’t that how “it” begins? They are Knockout roses, of course, but Jim chided with them that these are merely “gateway” roses and, soon enough, the rose madness that consumes our yard will find its way to theirs. This would be a great solution to the fact that Jim and I running out of room!

Starla & Jim Harding —

3 NASHVILLE ROSE LEAF, JUNE 2010

June Rose TipMonty Justice recommends add-

ing 1/2 tsp of Monty’s Joy Juice 2-15-15, 1 TBSP of vinegar and 1 TBSP of Epsom Salts dissolved in water to each gallon of spray ma-terial. The humics in Monty’s takes the pesticides and nutrients into the plant through the leaves; the vinegar acidifies the solution mak-ing the pesticides effective longer; the magnesium in the Epsom Salts metabolizes nutrients in the plant and works with sunshine to create energy.

Anne Owen, ARS —Master Rosarian

this rose was one of their favorite old-fash-ioned roses. They describe the rose as hardy and carefree but recommend cutting the rose back later in the season if a bit of mildew shows up. Tolerating poor soil, it is easy to grow with few prickles and good foliage. Rosa Mundi is a compact bush so it is an easy fit into most gardens growing to about four feet wide and about the same width on budded stock. Grown on its own roots, it will spread by suckering. Since many OGR’s re-sent spraying, Rosa Mundi would be a good choice for those who are looking for a hardy no-spray rose.

Rosa Mundi is a member of the Gallica class of roses, the oldest of cultivated garden roses whose presence is felt in some small degree in nearly all our garden roses of to-day. Most are fragrant. Their ability to pro-duce seed that germinates freely, together with an unusual hardiness has enabled them to survive under the most difficult condi-tions. Gallicas were named by the 18th-cen-tury Swedish botanist, Linnaeus, the man responsible for giving Latin names to plant species. He believed these roses originated in Gallica which is an old name for France. A thousand years before the birth of Christ, the early Greeks and Romans grew Rosa gallica for medicinal purposes. In the Middle Ages, the highly scented Rosa gallica officinalis became so popular for lotions, potions and powders that it became known as the Apoth-ecary Rose. It is easy to see that the Gallica hybrids we grow today have come a long way since then.

In New Zealand I was told the story of how many rosarians believe Rosa Mundi received it’s name. Although there are dif-ferent versions of the story, legend has it the rose was named for a 12th Century beauty named Rosamund de Clifford (aka Fair Rosamund), mistress of England’s King Henry II who reigned from 1154-1189. It seems that Henry’s jealous Queen, Eleanor of Aquitaine, was a lady given to dealing decisively with life’s little problems so she arranged for Rosamund to be poisoned. It is believed that the grief-stricken Henry or-dered the pretty striped rose that grew wild in the hedgerows to be named Rosamund’s Rose. It seems this legend cannot be veri-fied as it happened so many years ago but the characters certainly existed--so who knows?

In 1966, the American Rose Society de-fined old garden roses (OGR’s) as those that existed prior to 1867 which was the year that La France, the first hybrid tea was introduced. Although many OGR’s only bloom once, these roses often give a better show for that limited time. They have a par-ticular kind of beauty that belongs to roses of another age. The beauty of these roses is something that cannot be repeated.

As rosarians, we are encouraged to grow different classes of roses so we can share our knowledge of rose culture with oth-ers. Last year I planted Rosa Mundi and now each day I return to the garden to see if any of the happy profusion of buds have opened. It is true--Rosa Mundi blooms are greatly anticipated. I can’t wait!!!

The author: Mary and Michael Bates live and garden in Knoxville, Tennessee. Their garden is an eighteen year old Zone 6b pe-rennial and woodland garden with a sunny side and front yard where they enjoy grow-ing climbers, shrubs, OGR’s and over one hundred hybrid teas and floribundas. They fell in love with roses while traveling in New Zealand. Returning home to Tennessee from work in Antarctica, they began slowly with roses. Plant Society memberships include The American Rose Society, Tennessee Rose Society, Nashville Rose Society and Ameri-can Hydrangea Society. Mary is an ARS Consulting Rosarian.

June ROM - Rosa Mundi

(Cont’d from Page 1)

NRS Garden Tour The 2010 Nashville Rose Garden Tour will be on Sunday; June 6, from 12:30 PM to 5 PM and will display five terrific gar-dens. The tour is open to all garden lovers whether members or not. You, your fam-ily and friends are encouraged to see these fine gardens that reflect their owner’s love of rose growing. The NRS salutes these gardeners and thanks them for their par-ticipation in this year’s tour.

After surviving the major flood of early May, the gardeners of the Nashville Rose So-ciety have rebounded in their full glory with magnificent success. Two of those planning to be on this year’s tour had to cancel due to significant damages from the huge amount of water from the massive rains.

The Nashville Music Garden beside the Schemmerhorn and the Country Music Hall of Fame escaped the severe downtown water damages and is included on this year’s tour. This year there are also four private gardens on the tour spaced near one another for tour-ing convenience:

Janie Lipps Hagan; 810 Glen Leven Drive just down the street from the Tennessee gov-ernor’s mansion. Her wonderful rose, peren-nial, and vegetable gardens are a credit to her “green thumb” skills. It is a gardening delight.

John Mallernee; 1612 Glen Echo; just down from the Green Hills Post Office. A glow-ing example of expertise in hybrid teas; two unique, beautiful gardens of over 70 huge hybrid teas and floribundas in high raised beds reflecting terrific technical skills in rose growing….a head-turner for many who have enjoyed his gardens over the years.

Sue and Scott Rankin; 320 Lynnwood Blvd in Belle Meade. This is a must see if you have not seen it before. Sue and Scott have nearly two acres of magnificent gar-dens. They have over 80 David Austin roses interspersed among a dazzling display of pe-rennials and prized plantings. His hybrid tea garden includes about 75 bushes.

Harris Gilbert; 245 Ensworth Avenue; near Ensworth school. This is a wonderful com-pact garden with English roses, old-fash-ioned roses; and hybrid teas surrounding a marvelous rock garden and water fountain. This is a treat for those wanting to learn how to do a more compact garden.

NASHVILLE ROSE LEAF, JUNE 2010 4

Thee Juune RRoosse GGarrdden

ByBy Annnee Owenen

NRS

News

NRS JUNE PICNIC

Special reminder to make plans to attend the NRS Picnic on June 5th. For directions see the insert with a map to Larry and Con-nie Baird’s home.

ARRANGEMENT CLASS

Jeff and Jennifer Harvey will be holding a table arrangements class on June 12th at The Education Building at the Ward Agri-culture Center in Lebanon ( where the Wil-son County Fair is). The class is open to anyone interested in floral design. They will go over how to make traditional designs as well as exhibition designs. For those plan-ning to enter a design in a flower show they will go over what the judges look for.

After the formal part of the class there will be a break for lunch from Little Paul’s BBQ - the best in Lebanon. There will also be time for people to make their own de-signs and seek help from us and other ex-perienced arrangers that will be there.

Class and lunch is only $12; for more information call or email Jeff or Jennifer at (615)268-7089 or [email protected]. The registration form can be found at the Tenarky district website www.Tenarky.org and as an insert in the newsletter.

ARS

NEWS

Rosarian Ramblings by: Howard Walters: Through the Years

“This volume is a compilation of the thir-ty-two years of his columns bearing the title Rosarian Ramblings that were pub-lished in the American Rose for the first time in September 1970 and continuously until the March 2003 issue, just a month before his death. The reader will find his writings to be as much fun to read as they are informative.” Dr. John T. Dickman

This book can be purchased at www.ars.org

The roses should now be blooming beautifully making all your spring efforts pay off. The major pruning in late March is really just the beginning because prun-ing takes place all season long.

Routine pruning begins after the plants leaf out and begin growing. Dur-ing your main spring pruning, we recom-mended removing any new foliage grow-ing toward the center of the bush and any crossing canes. This practice should con-tinue all season and is important for the health of the rose to improve air circu-lation and enable better contact of spray materials.

Other types of growth that should be removed are blind shoots and “twizzles”. Blind shoots will never produce a bloom and should be removed at the point of origin. A type of growth that appears as a spiral of leaves without a stem should also be removed. It probably has a botan-ical name but I’ve never heard it called anything but ‘twizzles”.

In late May or Early June, you should remove the lower 6-8” of foliage on well established plants. This helps keep the spider mites from gaining a hold and it exposes the lower twiggy growth that needs to be removed. It also enables you to get a strong spray of water upward on the underside of the foliage bush that will keep spider mites from reproducing. If you do have a problem with spider mites, check Rosemania for the appropriate chemicals that kill adults and eggs.

If you buy a new potted rose, it will look very lush and full of foliage. On closer inspection, you will find that much of the foliage should be removed. Once you take out the unproductive growth, the rose will look pretty skinny, but you will see right away how much better off the rose will be without the extra foliage that works against you, not for you.

In mid-June, you can apply 2 TBSP of Epsom Salts around the dripline of roses and water in. Keep your roses well wa-tered especially when the temperatures are high consistently and there is inad-

equate rainfall. Roses need about 1” of water or rain every week, more as the temperatures rise into the high 80’s and 90’s.

As the weather gets hotter, you will notice that the roses get smaller. The heat makes the blooms open faster and they don’t have time to grow their fullest form as they do in cooler weather. There’s nothing you can do about it except ap-preciate the larger blooms in the spring and fall.

If you live in an area where you are bothered with thrips, you can mist the blooms and buds every few days with a quart or gallon sprayer using Orthene or Conserve. It doesn’t take long and you will be rewarded with clean blooms. Well, at least cleaner blooms.

If you’ve ever walked into a room and then wondered why you are there, it’s time to keep a garden journal. It’s almost impossible to remember what you did to the roses and when, so if you write down the date and application, you will be able to look back next month or next year and refresh your memory. When I first started using Liquid Carbon, I forgot about it and about two weeks later, I was walking through the roses and wondering whose roses they were. Looked in the journal and saw that it was the Liquid Carbon at work. If you’re not using it yet, it’s time to start.

Now that most of the spring push is over, consider becoming a Consulting Rosarian. Think of all the things you have learned about growing roses and how wonderful it would be to teach oth-ers. Contact NRS President Larry Baird and let him know you’re interested.

The annual rose show is in the planning stages. Please call Sam Jones and volun-teer for something. You don’t have to have any special knowledge to do many of the jobs like filling vases, moving tables, transporting supplies, etc. Help your Nashville Rose Society be the best society we can be.

5 NASHVILLE ROSE LEAF, JUNE 2010

Despite the fact that roses are incapable of conveying information orally, their ability to communicate is, nonetheless, quite efficient. If you don’t believe me, just try ignoring a rose that is infected with a wretched spell of black spot or a severe infestation of spider mites. You will then watch your beautiful rose dis-robe right down to its last leaf just be-fore it shrivels up and dies. Roses do “speak” to us in one form or another… sometimes to convey their appreciation to us, but in the case of Jim and I, of-tentimes not. We frequently shudder to think what our roses would actually say if they could, indeed, talk. We have thus concluded that we would never allow visitors to our garden under such a sce-nario. However, if our roses could talk, you might hear some of the following dialogue:

America: Here they come again. New gloves, new pruners and those tacky gar-den clogs she thinks are just “too cute”.

Disneyland: Let’s hope they’ve learned a thing or two since transplanting me in mid-July. I almost didn’t make it that year.

Joseph’s Coat: I still can’t believe they did that just because she thought you would look prettier next to me. I wonder if she knows that’s why I reach out and grab a handful of her hair every time she tries to prune me. You’d think she would have the sense to buy a hat by now.

Double Delight: Double Trouble, they are. Remember the time they pulled off all our basal breaks after deciding they were “suckers”. I think we all knew who the real suckers were later in the season. They are quite a pair, those two.

Pinata: Tell me about it. I looked like they pruned me while blindfolded!

Giggles: I couldn’t help but laugh the first time she pruned roses. She was so timid she might as well have been using toenail clippers.

Parole: Well he should have been arrested for coming in behind her like “Edward Scissors Hands” and giving all of us crew cuts.

Memphis Queen: Remember how mad she was? She was one Hot Princess that day and it was only March!

Quietness: She sure can be loud when she’s mad. I’m probably his only hope for Quietness when she is in the garden.

Happy Chappy: We need to have a Change of Heart, here. It’s not as if they never try. They finally learned about basal breaks and pruning.

Conundrum: I think you’re confused. The year they learned about basal breaks was the same year squirrels stock-piled black walnuts in their rose beds. Don’t you remember they let them grow decid-ing those baby trees were basal breaks?

Let Freedom Ring: Don’t we have any rights?

Pope John Paul II: You certainly don’t have last rites. I was the first rose they ever decided to shovel prune. They have no shame.

Shameless: I’ll say!

The McCartney Rose: Remember when they brought out the beatle traps? The British invasion was nothing compared to the Japanese version All I could do was scream Help! I need somebody!

Brenda Lee: I’m sorry….so sorry.

Dolly Parton: You’re sorry? That’s all I hear every time she pulls his nose out of my blooms.

Golden Celebration: Isn’t anyone going to mention their little dog, who, by the way, has clearly misinterpreted my name. All I can say is it’s a good thing I’m al-ready yellow.

Starla: Speaking of names what kind of a name is “Starla”, anyway?

IIf Ouur Rossees CCould TTalkk

By Staarlrla HHarding

Miss Flippins: A good name for a lunatic, if you ask me! Remember when she cut off my largest cane because she insisted I was making a vulgar gesture? How ab-surd!

Outrageous: I think my name says it all!

In The Mood: I’m getting a headache.

Impatient: Tell me, then, why we continue to exercise patience with them.

Veterans’ Honor: Because it’s the right thing to do. After all, their hearts have al-ways been in the right place.

Easy Going: Their hearts might be in the right place, but I’m not. They pushed me over the edge when they planted me under those big birch trees.

Perfect Moment: True, but not everyone can be perfect, they have had their mo-ments.

Happy Thoughts: Doesn’t anyone have something nice to say?

Quietness:

Brides Dream: I do. For better or for worse, these two have loved and tended to us faithfully. Despite harsh weather condi-tions, various infestations and our venge-ful thorns, we have thrived in spite of their ignorance. Anyone who disagrees should speak now or forever hold their peace.

Lasting Love: With the exception of Pope John Paul II, I think I can speak for us all by suggesting that if these Lovestruck knuckleheads love us nearly as much as they love each other we will all endure just as Love does.

Thankfully, this is a work of fiction be-cause as far as we know, our roses cannot talk. However, if you should find your-self in our garden wondering whether or not you can actually hear our roses ram-bling, we would emphatically assure you that what you actually heard were rantings from the grapevine.

NASHVILLE ROSE LEAF, JUNE 2010 6

PESTICIDE RESISTANCE: What Is It and How To Avoid It?

Dr. Raymond Cloyd

This article on pesticide resistance is one of two articles designed to explain the consequences of continually relying on pesticides (in this case, insecticides and miticides) to deal with insect and mite pests of roses, and their potential impact (secondary pest outbreaks and target pest resurgence) on natural enemy (e.g., para-sitoid or predator) populations. Well, what is resistance? Resistance is the genetic ability of some individuals in an insect or mite pest population to survive expo-sure from a pesticide application. In other words, the pesticide no longer kills a suf-ficient number of individuals to be con-sidered effective. Resistance is an inher-ited trait and the evolution of resistance in an insect or mite pest population depends on existing genetic variability that allows some individuals to survive exposure of a pesticide application. Any surviving indi-viduals then transfer resistant traits to the next generation thus enriching the gene pool or population with resistant genes.

The “selection pressure,” or frequency/proportion of the pest population that sur-vives after exposure from a pesticide ap-plication, is the main factor that influences resistance. The key is that every time you (as a rose grower) expose an insect or mite pest population to a pesticide, there is po-tential selection for resistance, which then increases the frequency/proportion of re-sistant genes within that pest population. The higher the frequency/proportion of resistant genes, the more difficult it is to regulate or control an insect or mite pest population.

Genes for resistance typically occur at a low frequency/proportion in an insect or mite pest population before a pesticide is applied. An individual does not be-come resistant, but frequent applications of a pesticide over multiple generations remove susceptible individuals, leaving resistant individuals to reproduce. The result is an insect or mite pest population that is more difficult to regulate or control with a given pesticide.

The speed or rate at which resistance develops in a given insect or mite pest population depends primarily on two fac-tors: short generation time (egg to egg) and high female reproduction (ability to produce large numbers of young in a sin-gle generation). It is very important to un-derstand how resistance develops and the rate of occurrence when dealing with the most notorious pest of roses, the twospot-ted spider mite (Tetranychus urticae). Twospotted spider mites have a breeding system that actually accelerates the rate of resistance development because the genes for resistance are fully-expressed or they already pre-exist in the population, and as such it doesn’t take a twospotted spider mite population long to develop resistance to a miticide, especially if a miticide with the same mode of action is continually be-ing applied.

What is mode of action? Well, this is how or the mechanism by which the pes-ticide kills the insect or mite pest. If the same mode of action is used continuously then this results in undue “selection pres-

sure” and an increase in the frequency/proportion of resistant individuals in the pest population. How can you overcome or mitigate resistance? The best way is to avoid continually using the same miti-cide over-and-over again. Always, switch miticides regularly (every 2 to 3 weeks) with different modes of activity. Most of the miticides commonly used on roses are site-specific (attack a very specific target site in the mite) and have discrete modes of action. The table below is a simple list-ing of the miticides commercially avail-able and their modes of action:

Be sure to take note that Shuttle and Akari, have similar modes of action, as do Forbid and Kontos, so do not use these miticides in succession in order to avoid placing undue “selection pressure” on the twospotted spider mite population and thus enhancing the potential for resis-tance. Another way to delay the onset of resistance is to use pesticides with broad modes of activity that attack multiple tar-get sites in the mite, such as insecticidal soaps (potassium salts of fatty acids), horticultural oils (petroleum or paraffinic oils), or neem oil (clarified hydrophobic extract of neem oil). You should incorpo-rate these pesticides into a spray program with the miticides listed in Table 1.

It is important to understand how resis-tance develops so you can effectively deal with twospotted spider mite and other pests of roses, and at the same time pre-serve the longevity and effectiveness of currently existing products. Happy Rose Growing!!

Common Name (Trade Name) C S T Mode of Action Eggs Larvae Nymph Adult

Abamectin (Avid/Lucid) X X GABA*chloride channel activator X X XAcequinocyl (Shuttle) X Mitochondria electron transport inhibitor X X X XBifenazate (Floramite) X GABA-gated antagonist X X X XEtoxazole (TetraSan) X X Chitin synthesis inhibitor X X XFenpyroximate (Akari) X Mitochondria electron transport inhibitor X X X XHexythiazox (Hexygon) X Growth and embryogenesis inhibitor X X XSpiromesifen (Forbid) X X Lipid biosynthesis inhibitor X X XSpirotetramat (Kontos) X X X Lipid biosynthesis inhibitor X X XC = Contact S = Systemic T = Translaminar* GABA=Gamma amino butyric acid

7 NASHVILLE ROSE LEAF, JUNE 2010

Contributions Nashville Rose Society is a 501c-3 organization and all contributions to the society are tax-deductible. Con-

tributions may be made as memorials or to honor some person, group or occasion. Checks for contributions

should be made payable to Nashville Rose Society and mailed to:

CINDY WORCH137 Urban Farms Rd.

Manchester, TN 37355((931) 723-2142

[email protected]

Disclaimer: While the advice and information in this newsletter is believed to be true and accurate at the time of publica-tion, neither the authors nor the editor(s) accept any legal responsibility for any errors or omissions that may have been made. The Nashville Rose Society makes no warranty, expressed or implied with respect to the material contained herein.

Nashville Rose Society MembershipWe are a non-profit organization

serving the middle Tennessee area to educate persons on growing and exhibiting roses. Membership is open to everyone who supports the objec-tives of the organization. Annual dues of $20.00 per household include a sub-scription to The Nashville Rose Leaf, the official newsletter of the society. To join, send a check payable to Nashville Rose Society to:

Marty Reich, 5020 Dovecote Dr., Nashville, TN 37220-1614

Phone: (615) 833-0791; E-mail: [email protected]

Nashville Rose LeafThe Nashville Rose Leaf is pub-

lished eleven times annually by the Nashville Rose Society, Nashville, TN

Editors: Jim & Starla Harding, Sam Jones & Leann Barron

Editorial Advisory Committee: Marty Reich and Charles Lott

ARS Consulting Rosarians South Nashville

Leann Barron ....................(615) 269-0240*Marty Reich ....................(615) 833-0791

West NashvilleKeith Garman ....................(615) 352-6219Sam & Nancy Jones ..........(615) 646-4138

Brentwood Area*Cecil & Bessie Ward ........(615)373-2245Jerry & Marise Keathley ....(615)377-3034

Franklin Area*Anne Owen .....................(615) 794-0138Logan & Joan Shillinglaw (615) 790-7346Robbie&Marsha Tucker ....(615) 595-9187

Hendersonville AreaRon Daniels .......................(615) 330-7083Charles Lott .......................(615) 824-5614Jack Wedekind ..................(615) 824-8696

Murfreesboro AreaDillard & Diane Lester ......(615) 896-0203

Columbia AreaLyle Worsham ...................(931) 388-4547

Lebanon-Watertown AreaJeff Harvey ........................(615) 268-7089Jennifer Harvey .................(615) 268-7032

Duck River-Centerville Area*Larry & Connie Baird .....(931) 729-5259

Manchester AreaCindy Worch .....................(931) 723-2142*Indicates ARS Master Rosarian

Nashville Rose Society 2010 OfficersPresident Larry Baird................(931) 729-5259Vice-Pres Ron Daniels...............(615) 330-7083Treasurer Susan Sinclair............(615) 386-3818Rec. S’ty Hayes Gibson ...........(615) 794-1708Cor. S’ty Cynthia Worch ..........(931) 723-2142Previous Pres. Sandra Frank..... .(615) 383-058

A Rose Lover’s CalendarNRS, Tenarky, & ARS Coming Events

JUNE

5 NRS Meeting & Picnic at the home of Larry & Connie Baird - 12 Noon

5 Huntsville Twickenham Rose Show - Parkway Mall - Contact Bill Chappell at [email protected]

6 NRS Annual Rose Garden Tour 12:30 PM - 5:00 PM - Ray Hunter 227-7353

JULY

6 NRS Meeting at Cheekwood - 6:30 PM - Refreshments 7:00 PM - Photographing Roses by Don Gill & Charles Lott Grand Prix I 22 ARS National Miniature Rose Show and Conference Mil waukee, WI Contact Diane Sommers, 262-781-7989 [email protected]

AUGUST

3 NRS Meeting at Cheekwood - 6:30 PM - Refreshments 7:00 PM - President’s Special Guest & Ice Cream Social

Details & other event news available atwww.nashvillerosesociety.com

Nashville Rose Leaf is printed by: The Print Authority Brentwood, Tennessee

New MembersEtta Britt

4777 Lickton PkWhites Creek, TN 37189

615-498-4496

Patricia L. Grove2068 Roderick CircleFranklin, TN 37064

615-790-3508

Neely and Sally Coble4418 Warner Place

Nashville, TN 37205

Judith Castro2426 Foxhaven Dr.

Franklin, TN 37069-5352615-373-5352

Gene & Angela Leach1529 Gordon Petty Dr.Brentwood, TN 37027

615-370-1532

NON-PROFIT ORGANIZATION

U.S. POSTAGE PAIDBRENTWOOD, TNPERMIT NO. 162

www.nashvillerosesociety.com

5020 Dovecote DriveNashville, TN 37220-1614

Address Service Requested

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and David Austin roses burst into riots of color, with huge billowing clusters of flowers: oh, horticultural happiness!

I sheepishly confess to almost shovel pruning a duo of Easy Does It roses, hy-bridized by Harkness Roses, and it would have been a big, big mistake. They had been mislabeled when I purchased them and they didn’t perform well the first season, as they were getting established. Thank goodness I spared them! This year, the roses are not only very disease resis-tant, they are blooming their heads off, and their deep coral-orange flowers are traffic-stoppingly fabulous. Truly stunning and well-deserving of their prestigious AARS win. Yours truly positioned them in front of a ‘Gold Mop’ Chamaecyparis pisifera (falsecypress), a purple-blooming Indigo-fera kirilowii (indigo), Baptisia ‘Carolina Moonlight,’ and a ‘Royal Purple’ Con-tinus coggyria (smoke tree), and voila! what more can a girl want? The moral of this story: give roses a couple of years to get established before tossing them on the brush pile. Not all roses perform spectac-ularly the first year, and that’s okay.

The David Austin roses I planted in containers last year have become real problems for me. Two reasons why: 1. I’m addicted to them and 2. Because so many people stop to ask about their gorgeous blooms, in particular, Tess of D’Urbervilles, Molineux and Darcey Bussell. I can’t get any gardening done! They are beautiful, heat-tolerant perform-ers for many gardeners in the southeast-ern United States, which is great news for fans of English roses.

Don’t even get me started talking (yet again) about the Climbing Pinkie rose growing in the Jack Daniels whiskey barrel...though I’d be climbing too, if I’d spent the last 6 years in a whiskey barrel. An Earthkind® rose, it’s virtually thorn-less, a reliable blooming machine, doesn’t require spraying, mildly fragrant, and cas-cades effortlessly and gracefully over ar-bors or fences without being a thug. ‘Nuff said, at least for now.

Lest I overlook the other stellar climbing roses adorning our fence, let me be quick to compliment this bevy of buxom beau-ties: the classic New Dawn, a neighbor-hood favorite, light pink, double, fragrant. Just give her plenty of room, and a very sturdy fence to ramble along. The same is true for her “daughter,” Awakening, a ful-ly-double blooming sport of New Dawn. Another favorite climber in our garden is the highly rated hybrid musk rose Fe-licia, a very fragrant, delicate but tough

The Day of Rain and Roses

(Cont’d from page 1)

Easy Does It

plant. Teasing Georgia, Aloha, Lavender Lassie, Peggy Martin, Fourth of July, and Don Juan are other good choices for climbers. Just do your homework before choosing. Remember: Right rose, right place.

In other news, our family recently trav-eled down the Blues Highway to the heart of the Mississippi Delta for our close friends’ daughter’s wedding. Make no mistake, those Delta folks know how to throw a party. We crossed the muddy waters of the mighty Mississippi to the charming town of Lake Village, Arkansas, situated on the largest natural oxbow lake in the United States, Lake Chicot. Lucky for me, there’s also a world-class rose gar-den nestled just across the lake from their home, the garden of Dr. and Mrs. Max Johnson. For the second time, I made the near-sacred pilgrimage to their lakeside estate, and paid homage to his jaw-drop-pingly huge, gorgeous rose garden, with row upon row (upon row!) of well-tended roses. This time I wasn’t able to visit with Dr. Johnson, but he generously opened his garden, and despite the brisk wind whipping across Lake Chicot, we enjoyed the billowing blooms of countless variet-ies, including Dolly Parton, Europeana, Elizabeth Taylor, Elina, The McCart-ney Rose, Guy de Maupassant, English Perfume (lives up to its name), Eden, St. Patrick, Electron, Gold Medal, Iceberg, Betty Boop, the 2010 introduction White Licorice (lovely, by the way!), and Judy Garland, a great rose I’d never seen be-fore, which was as colorful as Oz itself. Inspiring.

Keep the hummingbird feeders filled and happy gardening.