Ask a Question forum: Whiteflies and aphids on roses

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7b
Tkhan
May 19, 2017 12:40 PM CST
Please tell me how to get rid of whiteflies and aphids on my roses
I have one climbing roses which is really thriving and two David austins which I just bought
I tried one organic spray but the pests are still there
How do I get rid of them
N. Ohio (Zone 5b)
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Tisha
May 20, 2017 2:12 PM CST
Hello!
Aphids, I just came inside from smushing some of `em on some of my Austins. Which ones did you get?
For now just hose spray the aphids off the roses EARILY as possible in the morning (roses need to air dry).Two or three days of hose spraying should get `em under control. Keep checking. May need to knock `em off every few days till their season is over.
OR
Insecticidal soap. Fallow product directions.
Whiteflies, something to do with a blue plastic cup coated with canola oil. That sounds like an indoor solution. Somebody out there knows Whistling
7b
Tkhan
May 21, 2017 7:17 AM CST
Thank You! Tisha
I'll take your advice
But I have to work on the whiteflies
N. Ohio (Zone 5b)
Bookworm The WITWIT Badge Moon Gardener Million Pollinator Garden Challenge Native Plants and Wildflowers Roses
Vermiculture Frogs and Toads Birds Lover of wildlife (Raccoon badge)
Tisha
May 21, 2017 2:51 PM CST
Click on the `Learning Library` and a list will drop down.
Click on the 5th one down- `pest control library`. Scroll down to whiteflies and click on it. Good info.
Bottom line spray with hose OR dishsoap water OR insecticidal soap OR let the benifical insects do their job. Lacewings etc.
I can only think of these four choices Thumbs up
Which Austins did you get?
7b
Tkhan
May 24, 2017 4:42 PM CST
Hi tisha thanks so much for the info on whiteflies I've been spraying the rose with water Hate to use chemical
Sprays Let's hope this works
And I have Winchester cathedral and Falstafff DA roses in planters Let's hope they thrive ! 😃
Name: Elaine
Sarasota, Fl
The one constant in life is change
Cat Lover Master Gardener: Florida Tropicals Multi-Region Gardener Vegetable Grower Region: Florida
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dyzzypyxxy
May 25, 2017 8:11 AM CST
May I add that at this time of year, the little sucking bugs like aphids and whiteflies are breeding like crazy. Just spraying them once only gets the adult insects, but leaves the next generation eggs ready to hatch. So that's the reason it seems like they never go away.

You just need to keep after them for a couple of weeks, spraying every few days thoroughly to hopefully get the next generation before they lay eggs. Be sure to get the spray on the undersides of the leaves as well as the tops, stems, and the soil surface. A very mild spray of dish soap is the preferred treatment. A quart spray bottle with 1/2tsp of dish soap works fine. Stronger is not better, and it's a good idea to also rinse off the soapy water after a few minutes.

As Tisha said, do this in the morning so that the roses dry off well. Leaving moisture on the leaves at night is an invitation to fungus.
Elaine

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
7b
Tkhan
May 25, 2017 8:13 PM CST
Thanks dyzzypyxxy Thank You!

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