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How to Control Whiteflies on Outdoor Plants

By Stan DeFreitas Mr Green Thumb ; Updated September 21, 2017

Controlling whiteflies on outdoor plants can be done by spraying down the plant with neem oil, a pesticide, soapy water or oil sprays, but sticky traps can also be set to get rid of whiteflies. Eliminate whiteflies from the garden with plant advice from an urban horticulturist in this free video on gardening.


Hi, I'm Stan DeFreitas, Mr. Green Thumb. Whiteflies, one of the real problems in the yard and garden. If you've gardenias, you've got citrus, many plants succumb to this problem. Now remember that the whitefly is actually a tiny little fly that leaves a little silvery dot on the back of a leaf. And on that little dot is actually the egg stage or the stage that's going to pupate out that's going to feed upon your plant. As quickly as they feed they excrete. Now one of the things you can do is get your little sprayer out and you can use either something like this backpack or a one gallon pump sprayer and I'd either use something like neem oil, neem oil is an organic based product made from the neem tree from Africa, so it's safe, relatively safe, I consider it organic, or you can use one of the other products that labels it for whiteflies. You might find some of the other pesticides. I tend to like to use even soapy water or some of the oil sprays. Now you can even use an organic type idea of taking a piece of wood and painting it with a yellow color on it and then putting a sticky material on there like oil. You'll find that it'll attract the whiteflies to it, they'll stick to this kind of sticky trap if you will and that way you can also get rid of them. For askmrgreenthumb.com, I'm Stan DeFreitas.


About the Author


Stan DeFreitas, also known as "Mr. Green Thumb," has experience as an urban horticulturist working for the Pinellas County Extension Service and has taught horticulture at the St. Petersburg College. "Mr. Green Thumb" has spread gardening know-how on radio, TV and newspaper columns in both the Clearwater Sun and the Tampa Tribune. DeFreitas is the number one gardening advisor in the state of Florida, was the first to establish a "community garden" in Pinellas County, and helped start the first Master Garden Program in Pinellas County. DeFreitas was also twice Jaycees Horticulture "Man of the Year," was awarded the landscape design award from the city of St. Petersburg Beach, and was the host of the highest rated garden show on local PBS.