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Avatar for NewbieGardner
May 10, 2020 3:54 PM CST
Seattle, WA (Zone 8b)
I have potted hybrid tea roses which are high disease resistant plants. This is the third year of my plants. I am really tired of dealing with aphids every year by spraying insecticide and need oil.. Can someone help me how can I avoid my plants getting affected by aphids each year.
Avatar for porkpal
May 10, 2020 4:50 PM CST
Name: Porkpal
Richmond, TX (Zone 9a)
Cat Lover Charter ATP Member Keeper of Poultry I was one of the first 300 contributors to the plant database! Dog Lover Keeps Horses
Roses Plant Identifier Farmer Raises cows Celebrating Gardening: 2015 Garden Ideas: Level 2
I can't tell you how to avoid aphids, but simply spraying them off with the hose will take care of them just as well or better than insecticides.
Porkpal
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May 10, 2020 5:01 PM CST
Name: Mike
Easton, PA (Zone 6b)
Dahlias Greenhouse Native Plants and Wildflowers Orchids Region: Pennsylvania Region: United States of America
Keeping the plant healthy is always recommended.
I use BONIDE "Systemic HOUSEPLANT Insect Control" occasionally which works as well.
Package says lasts up to 8 weeks so it's not permanent.
Active ingredient is Imidacloprid.
It's easy to use granules you sprinkle on the surface of the soil and water in.
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May 10, 2020 5:25 PM CST
Name: Seth n Sam .....
W.V. (Zone 6a)
immike1 said:Keeping the plant healthy is always recommended.
I use BONIDE "Systemic HOUSEPLANT Insect Control" occasionally which works as well.
Package says lasts up to 8 weeks so it's not permanent.
Active ingredient is Imidacloprid.
It's easy to use granules you sprinkle on the surface of the soil and water in.


That stuff is bad for bees. Is causes honey bee hive collapse. Small doses doesnt kill individual bees. But they carry it back to the hives and it builds up inside the hives. Its number 1 in honey bee hive collapse and colony deaths.
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May 10, 2020 5:27 PM CST
Name: Seth n Sam .....
W.V. (Zone 6a)
@newbiegardner maybe try ladybugs. They're relatively cheap compared to insecticides. And will absolutely devour aphids. And they will pretty stay with the food source. So if you have a lot. They say most of them.
Avatar for NewbieGardner
May 10, 2020 5:57 PM CST
Seattle, WA (Zone 8b)
Thank you all!
Avatar for bart2018
May 11, 2020 4:19 AM CST
Tuscany, Italy
Just spray the aphids off with water, squish them with your fingers,or use ladybugs-DO NOT use a chemical! Let me tell you my experience with chemical insecticide. I used to have tons of aphids,but it was other insects that really bothered me, especially these local beetles ,Oxythyrea Funesta, and June bugs. These damage the flowers much as Japanese beetles do, though they don't eat the leaves; still, they can ruin your entire main flush. So,being inexperienced, I began spraying with an Imidacloprid-based systemic insecticide. It got rid of the aphids,but my roses looked worse than ever. It isn't strong enough to kill off beetles, for example-I actually think it winded up re-inforcing them, and apparently aphids eat thrip eggs or something like that- there is a symbiotic relationship betwee these two pests,though I forget what it is exactly (one of the experts at the Bierkreek nursery explained it, but I don't recall the details). So I wound up with more beetles than ever, and tons of thrips! no aphids, though, lol.
I stopped spraying years ago, and my garden is bouncing back, but it takes years. Now, whenever I see aphids on a rose out there, I rejoice.Sure, you don't want every stem to be covered thickly with aphids, but the bottom line is that they DO play an important part in the symbiosis of Nature,helping to keep things in balance ,keeping worse pests at bay, so don't aim for some kind of "final solution" to an aphid infestation. Don't try to "nuke" them. Integrated Pest Control rules!!!
Avatar for bart2018
May 11, 2020 4:42 AM CST
Tuscany, Italy
O, and I forgot-another uber-safe way to control an aphid population is spraying them with liquid soap and water. Use the most natural,pure liquid soap you can find.
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May 11, 2020 6:38 AM CST
Name: Lyn
Weaverville, California (Zone 8a)
Celebrating Gardening: 2015 Garden Sages Garden Ideas: Level 1
@bart2018 ...

You really don't need the soap. Soap is a sticker and leaves a residue on the plant. Aphids don't have lungs, so spraying them off with water is sufficient.
I'd rather weed than dust ... the weeds stay gone longer.
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May 11, 2020 7:01 AM CST
Name: Lynda Horn
Arkansas (Zone 7b)
Eat more tomatoes!
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So sorry to disagree, but just plain water has no effect on large infestations of aphids. I got a huge infestation of aphids mid summer last year, not on my roses, but my lilies, asiatic, oriental and turks cap. I started with water, no help. Switched to soapy water, not much better. It wasn't until I added a bit of oil to the mixture that I had any success. No, aphids don't have lungs, but the breathe through pores on their sides, and the soap and oil help to suffocate them. An infestation as large as I had will damage plants. I'm perfectly ok with a film on them versus severe aphid damage. Yes, I do IPM. Normally this works very well. My garden is usually healthy and in balance. I have no explanation for the huge surge of aphids last year. I did know I wasn't going to ignore them.
Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.
Mother Teresa
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May 11, 2020 10:45 AM CST
Name: Seth n Sam .....
W.V. (Zone 6a)
Using any kind of insecticide is horrible. Just a reminder. When bees die out. So do humans. If bees die out. 80% of vegetables go away.
Avatar for NewbieGardner
May 11, 2020 11:07 AM CST
Seattle, WA (Zone 8b)
I too hate killing any insects. So I was trying to get some ideas from this group if somebody has found a way to keep aphids away from rose plants. So then the is no need of killing them by neem oil or any insecticide.

I had this feeling that maybe we can do something in dormant season that rose plants won't get affected by any aphids or pests in spring.
Last edited by NewbieGardner May 11, 2020 11:09 AM Icon for preview
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May 11, 2020 12:17 PM CST
Name: Lyn
Weaverville, California (Zone 8a)
Celebrating Gardening: 2015 Garden Sages Garden Ideas: Level 1
I guess I have never had a huge infestation of aphids, so just using water has always worked just fine for me.

I know I cannot use anything with oil or "fat" molecules in my climate on my roses because when temps go above 85F, the foliage is subject to being burned.

I do have a serious problem with rose slugs and rose curculios. I have found a way to manage the curculios, but the rose slugs, for me, it's impossible to control them.
I'd rather weed than dust ... the weeds stay gone longer.
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May 11, 2020 1:05 PM CST
Name: SoCal
Orange County (Zone 10a)
Lazy Gardener or Melonator
I just ignore the aphids, they don't do anything to my roses. My roses are still beautiful, I just don't get too focus on them. They are food for my baby praying mantises.
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May 11, 2020 2:03 PM CST
Name: Lynda Horn
Arkansas (Zone 7b)
Eat more tomatoes!
Bee Lover Lover of wildlife (Black bear badge) Tomato Heads Salvias Lover of wildlife (Raccoon badge) Peppers
Organic Gardener Native Plants and Wildflowers Morning Glories Master Gardener: Arkansas Lilies Hummingbirder
I haven't found any baby mantis yet. Must be too cool for them to hatch.
Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.
Mother Teresa
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May 11, 2020 2:33 PM CST
Name: Seth n Sam .....
W.V. (Zone 6a)
NewbieGardner said:I too hate killing any insects. So I was trying to get some ideas from this group if somebody has found a way to keep aphids away from rose plants. So then the is no need of killing them by neem oil or any insecticide.

I had this feeling that maybe we can do something in dormant season that rose plants won't get affected by any aphids or pests in spring.


The best aphid defense is companion planting. They absolutely hate catnip. Garlic and the such. And before the bloom season starts use Diatomaceous earth around on the mulch of your Rose's. Dont use during blooming bc it harms bees too. But if you do it in the beginning of spring right as your roses awake from winter. It will help stop aphids from starting on your plants. But catnip and that together is a great aphid defense. Some are still gonna find there way through no matter what. But using insecticides for me is no good. Bc we have tons of honey bees. Bc our neighbor raises them. Has several hives in his fields. And we have humming birds out the yingyang. I've nvr seen so many hummingbirds in one place. Last year we had over 60 hummingbirds. So many that my wife hung feeders. 15 in all. And every 2-3 days they would be empty. We have 3 different species of them. Maybe even more. But 3 we know for sure. And they often feed on our Roses. So insecticides use just not allowed.
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May 12, 2020 12:41 PM CST
Coastal Southern California (Zone 13a)
Water -- a strong spray from a hose. If there are lots of them, stick your fingers in and brush them off as you wash. If you quit use of insecticides, you will find that birds, predatory insects and the like will devour your aphids. (They won't, if they're soaked with pesticides.)

Oil sprays, yes, and detergent or soap ... but those things can burn the daylights out of your foliage, if it gets hot (and I have had that happen on a sunny 75-deg. day).

Truth is ... we had LOTS of aphids when we sprayed. With no spray, we rarely see aphids.
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May 12, 2020 12:52 PM CST
Name: Rosemary
Sacramento, CA (Zone 9b)
Companion planting....they love nastursiums, so if they are planted near the roses, they may gravitate to them instead. If they get on the roses, I follow jerijen's method for dealing with them. They haven't done lasting damage.
Avatar for porkpal
May 12, 2020 2:53 PM CST
Name: Porkpal
Richmond, TX (Zone 9a)
Cat Lover Charter ATP Member Keeper of Poultry I was one of the first 300 contributors to the plant database! Dog Lover Keeps Horses
Roses Plant Identifier Farmer Raises cows Celebrating Gardening: 2015 Garden Ideas: Level 2
I have never sprayed with anything but water; I never see an aphid.
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May 12, 2020 4:45 PM CST
Name: Lynda Horn
Arkansas (Zone 7b)
Eat more tomatoes!
Bee Lover Lover of wildlife (Black bear badge) Tomato Heads Salvias Lover of wildlife (Raccoon badge) Peppers
Organic Gardener Native Plants and Wildflowers Morning Glories Master Gardener: Arkansas Lilies Hummingbirder
Lucky you. I didn't have any here either, until last year.
Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.
Mother Teresa

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