Ways to grow healthy roses without spraying
strawchicago z5
11 years ago
Featured Answer
Sort by:Oldest
Comments (20)
roseseek
11 years agoRelated Discussions
William and Catherine Rose
Comments (16)One thing that appeals to me about the new Austin is the red buds nesled against the white blooms. YES! I love that effect, too. It is what attracted me to Aimee Vibert, Duchesse de Grammont, and now Little White Pet. My two newer Austins have both disappointed somewhat. Queen Anne has already been given away. Rosemoor I'm holding onto for a little longer because the foliage is very nice, and the flowers do have some old rose scent, though it's not the "powerful" fragrance I was expecting based on descriptions. It's a mean thing to say, but sometimes I wonder if Austin's best roses are behind him. I wonder if he has reached the same dead end as the 19th century nurserymen did. How many cup shaped fully double petaled roses can you produce before there are too many and they all look the same? (Still, I often fall for the pictures, too, so maybe there's never enough?) But I do hope you get William and Catherine and really love it....See MorePreviously sprayed roses, can they adapt to life without spraying
Comments (19)I do not know how long blackspot takes to mutate. I am more familar with people getting a new race (variant, pathotype) of blackspot when they purchase an already diseased rose with a different race (varient, pathotype) of blackspot. Title: Identification of five physiological races of blackspot, Diplocarpon rosas, Wolf on roses Authors: Debener, T.; Drewes-Alvarez, R.; Rockstroh, K. Authors affiliation: Inst. Zierpflanzenzuechtung, Bundesanstalt Zuechtungsforschung, Kulturpflanze, Bornkampsweg 31, D-22926 Ahrensburg, Germany. Published in: Plant Breeding, volumn 117, pages 267-270, (1998). Abstract: "Differentiation into physiological races of Diplocarpon rosae, which causes blackspot on wild and cultivated roses, was investigated with single conidial isolates of the pathogen. Infection experiments with a simple excised leaf assay demonstrated differential interactions between single isolates and a set of 10 test rose genotypes. Differential reactions could be observed among rose varieties as well as between and within a wild rose species. Accordingly, five different physiological races can be identified among the 15 isolates tested. A breeding line and one genotype of the wild species Rosa wichuraiana were found to be resistant against all isolates tested. These data will be employed in further investigations on the genetics of blackspot resistance in roses and for resistance breeding programmes." ----------------------------------------------------------------------------- Title: Response of selected old garden roses to seven isolates of Marssonina rosae in Mississippi Authors: Spencer, James A.; Wood, Opal W. Authors affiliation: Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762, USA. Published in: Journal of Environmental Horticulture, volumn 10, pages 221-223, (1992). Abstract: "Seven isolates of Marssonina rosae (imperfect stage of Diplocarpon rosae) elicited different blackspot disease expression among 39 Old Garden Roses in laboratory tests. 'Felicite Parmentier' (Alba), 'Mme. Hardy' (Damask), 'The Bishop' (Centifolia) and 'Rosa Mundi' (Gallica) showed no symptoms. 'Cardinal de Richelieu' (Gallica), 'Hermosa' (China) and 'Leda' (Damask) were the most susceptible showing a cultivar ratings mean of 2.86 or more. The Wayne variant was the least virulent, causing susceptible reactions on only 46.1% of the roses. The Hinds variant was the most virulent and caused symptoms of 89.7% of the rose plants tested. The remaining five variants caused disease on 69.1% to 79.5% of the plants." ---------------------------------------------------------------- Title: Occurrence of pathotypes of Diplocarpon rosae on roses in Belgium. Authors: Leus, L.; Kegelaers, G.; Van Bockstaele, E.; Hoefte, M. Authors affiliation: Department of Plant Genetics and Breeding, CLO, 9090, Melle, Belgium. Published in: Plant Protection Science, volumn 38(Special Issue 2), pages 536-538, (2002). Abstract: "Monospore cultures of black spot (Diplocarpon rosae Wolf) were established from isolates collected on outdoor grown roses at different locations in Belgium. These monospore cultures were tested on rose cultivars and species with different levels of natural resistance to examine the possible existence of different pathotypes. For this purpose a screening protocol including scoring after artificial infection was developed on in vitro plantlets. Differences between the examined isolates proved that there exist different pathotypes of Diplocarpon rosae in Belgium."...See MoreTips on growing healthy & lots of blooms roses from HMF
Comments (13)I find Cass to be very experienced & honest .. she grew 373 roses and offered excellent insights. That's why I love FlowerCarpet, no matter how heavy a blooming is, it never loses its leaves .. plus FlowerCarpet holds on to its blooms so long, and it's always in bloom. Cass wrote in her website: http://www.rosefog.us/Resources/Horrors.html "What makes a disease resistant rose? Roses go through cycles of new leaf growth and flowering, followed by petal dropping. Almost all roses drop leaves where a new flower stem emerges. My definition of good roses means they hold onto their leaves with good color and health after they flower and only start aging the lower foliage after new growth emerges -- and even then, they don't kill off much foliage. Not-so-good roses anticipate new growth: they prepare to drop leaves below the flowers even before the flowers drop. As those leaves age and die, they begin to show fungal disease. Experiment for yourself: cut off a perfectly healthy stem off a healthy rose and stick it in the ground. It will blackspot, rust, and/or mildew before it dries up and turns crispy brown. Growth patterns are thus a factor is disease resistance. A fastidious rosarian can anticipate some problems by careful dead-heading that includes the removal of enough leaves below the spent flowers. That means knowing beforehand which roses need to have the entire stem removed! Other roses go through an unavoidable cycle of fungal disease after flowering before new clean growth emerges. These are not so good roses. To me, disease-resistant means disease resistant during and after flowering. After all, everything looks great in the early spring when the new growth is just emerging." Cass http://www.rosefog.us/Resources/Horrors.html...See More10/27/15: Tips & recipes & thoughts to healthy life and healthy roses
Comments (63)JESS: Thank you for the pics. & neat info. about Badger .. I really enjoy learning about the animals in South Africa. One cup of chicken manure per bush is TOO MUCH. In a British rose forum, a lady burnt her roses by using chicken manure once a month. In my cold zone, I use chicken manure VERY SMALL amount when the temp is cool & rainy. Folks use Rose-Tone (has chicken manure) once a month for roses in pots. But that has only 1/6 chicken manure. I would use only 1/2 cup, 1 cup would be too salty. I killed a rose by mixing 1/2 cup of chicken manure in the planting hole. When chicken manure touches the root, it kills the root, best to dilute ONLY 1/2 cup with soil before spreading around the bush. I started a new thread, "10/30/15: Bad habits, good habits, rose & health tips, recipes." http://forums.gardenweb.com/discussions/3473294/m=3/10-30-15-bad-habits-good-habits-rose-and-health-tips-recipes...See Morestrawchicago z5
11 years agostrawchicago z5
11 years agoKrista_5NY
11 years agoamerique2
10 years agostrawchicago z5
10 years agoZyperiris
10 years agostrawchicago z5
10 years agoZyperiris
10 years agostrawchicago z5
10 years agoDisha1
10 years agokhalidex
10 years agojaorganic
10 years agostrawchicago z5
10 years agoseaweed0212
10 years agostrawchicago z5
10 years agoseaweed0212
10 years agostrawchicago z5
10 years agostrawchicago z5
10 years ago
Related Stories
GARDENING GUIDESWhat Kind of Roses Should You Grow?
Want to add the beauty of roses to your garden? Find out which ones, from old-fashioned to modern, are right for you
Full StoryGARDENING GUIDES6 Ways to Grow Edibles in Small Places
No big backyard? Join in the grow-your-own fun with these small-space ideas for planting vegetables, fruits and herbs
Full StoryGARDENING GUIDESHow to Keep Your Trees Healthy
Ensure your trees’ vigor for years to come with these tips for protecting roots, watering effectively and more
Full StorySUMMER FRUITS AND VEGETABLESSummer Crops: How to Grow Beans
Grow your own beans for amazing variety and healthy, convenient produce all summer
Full StoryHOUSEPLANTS8 Essentials for Healthy Indoor Plants
Houseplants add so much to our homes — and can thrive when grown in the right conditions. Keep these tips in mind
Full StoryLIFE6 Ways to Cool Off Without Air Conditioning
These methods can reduce temperatures in the home and save on energy bills
Full StoryBATHROOM COLOR8 Ways to Spruce Up an Older Bathroom (Without Remodeling)
Mint tiles got you feeling blue? Don’t demolish — distract the eye by updating small details
Full StorySPRING GARDENINGHow to Grow a Rose Garden in Pots
Everything can come up roses, even without a plot of soil in sight. This step-by-step guide to growing roses in containers shows you how
Full StoryHEALTHY HOME12 Ways to Set Up Your Kitchen for Healthy Eating
Making smart food choices is easier when your kitchen is part of your support team
Full StoryPETS10 Tips for Keeping Indoor Cats Healthy and Happy
It's National Cat Day: Ask not what your cat can do for you (because it will ignore you) but what you can do for your cat
Full Story
strawchicago z5Original Author