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How long do aphids live in soil? #596516

Asked September 13, 2019, 1:14 PM EDT

Dispite all efforts, aphids killed my indoor gardenia. Can I eventually plant in the soil after the dead plant is removed? If so, how long should I leave it before replanting? Thanks!

Kitsap County Washington

Expert Response

Assuming that you are really experiencing plant injury from aphids and not some other small soft bodied sucking insect (such as thrips, or whiteflies), then the problem is not soil borne.  Thus, the soil should be able to be recycled.  You can control sucking insects like aphids by applying imidacloprid granules to the soil, following very carefully the product label directions.  Most hardware type stores sell the formulations that will take care of aphids.
An Ask Extension Expert Replied September 16, 2019, 3:29 PM EDT
Thanks so much!  Checked aphids under a microscope so now I know I can replant.  Thanks for easing my mind!
The Question Asker Replied September 17, 2019, 5:28 PM EDT
You are very welcome.  Have a great (and aphid-free) day!
An Ask Extension Expert Replied September 17, 2019, 5:48 PM EDT

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