No-spray apricot roses
austennut
14 years ago
Featured Answer
Sort by:Oldest
Comments (25)
hoovb zone 9 sunset 23
14 years agolast modified: 9 years agoalameda/zone 8/East Texas
14 years agolast modified: 9 years agoRelated Discussions
Sulfur lime oil spray on pear and apricot trees
Comments (4)I don't grow apricots, so I am not going to comment on whether or not to use sulfur on them. I think what may be causing your confusion is that sulfur (or lime sulfur) plus oil can damage the LEAVES of the plant. If your pears (or other fruit trees) are dormant, then you should be fine to use the oil plus lime sulfur (mix it yourself or buy premix, it should not matter either way). I use it on all my fruit trees and grapes with good results. I think your lilies should be fine if they are covered by mulch and have no growth yet. I don't use copper, so I'll defer comment to someone else who uses it....See MoreApricot rose recommendations
Comments (38)Great responses everybody, thanks! There are some names I've never heard of before, I'll definitely check them all out. Madame Charles, Clementina Carbonieri and Silvina Donvito look intriguing. I'm going to look at the Buck roses and Austins more closely too. I'm not sure of the BS resistance on them yet. I don't think there is an actual "Apricot Knockout" just yet, but there is Carefree Celebration which is a Radler rose. One of its progeny is Rainbow Knockout. If Carefree Celebration is as healthy as Carefree Sunshine, I'm in! GdF is also available from ARE. Does anyone get a fall repeat with it? If so I have a good place for another rambler....See MoreBest organic spray(s) for roses
Comments (1)The single most effective means of control for either Black Spot or Powdery Mildew is either a spray made of 1 teaspoon of baking soda in 1 quart of water or a 50/50 mixture of fat free milk and water sprayed every 7 to 10 days to prevent infection or every 5 to 7 days to stop an infection once started. Cornell University does say that Potassium Bicarbonate is more effective that is Sodium Bicarbonate but I have not seen that for sale in the stores so being more effective means little since I cannot buy any. Some people will say you need to add soap or oil or both which is something that I have not done and have seen no need for....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 Moresabalmatt_tejas
14 years agolast modified: 9 years agomichaelg
14 years agolast modified: 9 years agosammy zone 7 Tulsa
14 years agolast modified: 9 years agoaustennut
14 years agolast modified: 9 years agokarenforroses
14 years agolast modified: 9 years agomichaelg
14 years agolast modified: 9 years agopetaloid
14 years agolast modified: 9 years agolittlesmokie
14 years agolast modified: 9 years agodennisb1
14 years agolast modified: 9 years agolavender_lass
14 years agolast modified: 9 years agoaustennut
14 years agolast modified: 9 years agobethnorcal9
14 years agolast modified: 9 years agomariannese
14 years agolast modified: 9 years agoolga_6b
14 years agolast modified: 9 years agojont1
14 years agolast modified: 9 years agomike_in_new_orleans
14 years agolast modified: 9 years agoceterum
14 years agolast modified: 9 years agolagomorphmom
14 years agolast modified: 9 years agoaustennut
14 years agolast modified: 9 years agoceterum
14 years agolast modified: 9 years agoalameda/zone 8/East Texas
14 years agolast modified: 9 years agosaldut
14 years agolast modified: 9 years ago
Related Stories
EDIBLE GARDENSHow to Grow Your Own Apricots
Velvety fruit, pretty blossoms and interesting bark make apricot trees a delight — and they’re great for smaller gardens
Full StoryGARDENING 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 Captivating Roses for an Alluringly Fragrant Garden
Perfume your garden with aromas from richly spicy to lightly sweet, without sacrificing an inch of color
Full StoryGARDENING GUIDESRoses: Crowning Touch of Gardens
Whether you're the Miss or Mister America of gardening or take a hands-off approach, roses can be a winning addition to your landscape
Full StoryGARDENING GUIDESGreat Design Plant: Knock Out Roses
As glorious as their high-maintenance kin for a fraction of the work, Knock Out roses make even beginners look like garden stars
Full StoryGARDENING GUIDES6 Wonderfully Easy Roses for Any Gardener
Look like an expert even if you're just starting out, with these low-maintenance gems of the rose world
Full StoryGARDENING GUIDESLearn the Secret to Bigger and Better Roses
Grow beautiful roses using both ordinary and unusual soil amendments
Full StoryWINTER GARDENINGPruning Secrets for Exquisite Roses
Encourage gorgeous blooms year after year with this time-tested advice on how to prune your rosebush in winter for health and shape
Full StoryGARDENING GUIDES5 Favorite White Roses for a Purely Beautiful Garden
How does your garden glow? With roses that look like light and smell divine
Full StoryGARDENING GUIDESGreat Design Plant: Sally Holmes Rose
This simple yet versatile climbing rose grows vigorously all year; plant now for abundant spring and summer blooms
Full Story
linrose