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Old 04-04-2012, 09:04 PM
 
Location: University City, Philadelphia
22,583 posts, read 11,649,545 times
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Question:

Is there such a thing as an all-purpose spray for rose bushes to control aphids, Japanese beetles, and other common Rose pests?

What do you recommend?

I have about 4 very old rose bushes in my backyard - my house is 120 years old - and I first saw these roses back in 1980 when the previous owner of the house showed them to me (I knew him ... I never dreamed years later I would be the next owner of the place ... it's a long story). The owner says the roses were there even before he bought the house and may date back to the earlier part of the 20th Century. One bush is very strange, the roses are tiny single-flowering types that grow in clusters exactly like geraniums they are white with a very faint blush of pink.

Anyway ... back on topic: In the past couple of years I noticed the main pest has been aphids. They become more apparent later on in the summer.

In the ten years I've owned the house I do NOTHING to the roses except prune them back pretty severely in mid-winter. I have never fertilized them or sprayed them or anything. They just come back every year and flower in May, take a break in the middle of the summer and re-flower again in late summer. Oh yes, I do put mulch loosely about to discourage weeds.
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Old 04-04-2012, 09:50 PM
 
Location: earth?
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Can you post some pictures of your house and the rose bushes?
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Old 04-04-2012, 11:20 PM
 
Location: Out there somewhere...
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OP, your closest all purpose would be insecticidal soap. But you may have to deal with unusual specialty bugs and fungus which will require different remedies.
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Old 04-05-2012, 12:58 AM
 
Location: rain city
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If the roses have made it this far, they'll keep on going. Sounds like you have some very nice plants, photos would be great.

Older varieties of roses are much healthier than contemporary hybrid teas, and not nearly as prone to black spot (for the most part). If your biggest problem is aphids, that's an easy fix: blast them with water.

Aphids generally congregate on new growth around the flower buds and on the undersides of the leaves. Take your garden hose and put your thumb over the opening creating a stream of pressure, and upsidedown-ish from underneath of the rose bush spray those aphids to kingdom come. Aphids are not sticky or webbed, they just stand around, so that it's really easy to dislodge them with with a good blast of water.

Of course they'll come back and then you just spray them again. This works. It's how I always deal with aphids. They're seasonal.

All plants get bugs. The idea is to keep the plants ahead ahead of the bugs.
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Old 04-05-2012, 01:06 AM
 
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Make a cheap insecticidal soap with dawn and isopropyl alcohol. Receipes can be found on line.
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Old 04-06-2012, 05:59 PM
 
Location: Philaburbia
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Squirt them with plain old dish soap mixed with water.
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Old 04-06-2012, 09:45 PM
 
Location: University City, Philadelphia
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Quote:
Originally Posted by azoria View Post

If your biggest problem is aphids, that's an easy fix: blast them with water.
Actually, that is exactly what I did last year ... blasted them water from my garden hose.

The bushes have come back very "bushy" and full of leaves so far, but I'm not expecting any rose flowers for another 3 or 4 weeks at least.
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