January 26, 2012 at 9:21 am #256504
Hi all, I am forever experiencing deseases on my rose bushes. I have been growing these bushes 3 years running. Some over 5 years. Now, some of the roses were cheaper brands than the others. But 3 years ago I had bought 2 expensive thornless roses. Anyway. All of my roses folliage have deseases on them. Some black marks and others just green sticky bugs growing on the foliage. Now I have bought countless rose sprays and even cut my iceberg rose tree; down, to next to nothing. But each year the same thing. I cannot seem to understand what I am doing wrong. I even sterilise the rose clippers assuming I was spreading the desease. But nothing. 🙁
Any tips or experience in these bugs and deseases, would be ever so grateful.January 26, 2012 at 9:40 am #519182mumof6Member
The rose black spot is caused by mositure you treat it by spraying milk on it also prevent by reducing moisture round the plant by watering in the morning and mulching under plant so soil is not exposed under the plant also plant in an open area with full sun lots of air flow. but as i dont know your garden you may not be able to do this as many factors (neigbours trees sun facing/shading) are out of your control, the aphids can be spraid with a garlic spray and plant garlic round the rose plants also can just squish then with finger and thumbs (they can smell there dead), I have hear of the big batanical gardens ordering in lady beetles to control aphids, also pyretham spray works but spray it in the evenings as the sun seems to burn plants more easy when sprayed during the day. thats my experiance with roses anyway hope this helpsJanuary 26, 2012 at 11:40 pm #519183
Hey there mumof6… Thanks kindly for your reply and tips, I will take your advice and see how things go… they can’t be any worse than the past 3 years. 🙂
MMJanuary 27, 2012 at 5:56 am #519184PopsicalMember
Hi MM, you can also use “Clensel” for the aphids (from the garden section in the supermarket) or make a spray from detergent & water & add a few drops of white oil to spray on them in the evening. It suffocates the bugs.
I have about 10 rose bushes and I do very little for them. Thats maybe why I also have several that didn’t make it. We bought some expensive ones too (David Austen roses) but only one has survived. They seem to need pampering and I can’t give them that because we’re a little out in the country and its usually difficult to get water to them.
Another way to approach it is to get roses that perform well under all conditions. A rose I’d recommend is “The Children’s Rose”. It has large pink blooms and even if I cut it right back in winter it grows into a tree every summer. Takes no care, I hardly ever water it and it doesn’t mind blackspot and aphids. Saying that, I am no expert on Roses. Would tend to buy any new ones from a reputable nursery. I found an outlet here in Melb from a nursery way over in Portland Vic. Their roses always tend to be better than anyone elses. They possibly deliver interstate. Good luck.January 27, 2012 at 11:12 am #519185
Hey thanks Popsical. I am from the northern suburbs of Melbourne. Portland is a quite a distance to travel for Rose bushes. But as you say they may deliver, I might consider them when next buying my roses.
We have a rose place not far from us, but I find the fellow running it very arrogant and obnoxious, plus I have only had deseases on my roses since buying his plants. Needless to say I am not impressed.
I remember complaining to him and al he could say was it’s because I wasn’t caring for them. Typical ha?
Anyway. I will think about your tips as well. I have to try everything now. 🙂
MMOctober 4, 2012 at 11:03 pm #519186GirlFridayMember
Neem oil is supposedly good for rose diseases. I know it works well for aphids. Have you tried companion planting with garlic or spring onions etc around the base of the roses- the sulphur compounds are meant to be beneficial for the roses.October 4, 2012 at 11:16 pm #519187lmd80Member
I have had aphids and tried a few things. I have some garlic and onion planted but maybe not enough for the number of rose bushes! I ended up hosing the aphids after advice from here, twice, and this has helped heaps! Also, I read putting banana peels at their base for potassium. Mine have improved heaps!
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