Geranium Plants
Q.

Whiteflies

Anonymous added on February 15, 2011 | Answered

I live in El Paso, Texas and last year I had an infestation of whiteflies on my (15) potted geraniums. It was so bad that most of them died. My question is, do I get rid of last year's soil? Do I buy new soil? And what is the best prevention for whiteflies?

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on February 16, 2011

I would either get rid of the soil or sterilize it by literally cooking it in your oven at 400 F for 30-45 minutes. This will kill any pests and pathogens in the soil.

Here is more information on controlling whitefly:
https://www.gardeningknowhow.com/plant-problems/pests/insects/whitefly-control.htm

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