How can I control whiteflies on tomatoes?
Q. I have five tomato plants and all was fine. I had ripe tomatoes, then whiteflies set in and they have almost sucked the life out of them.
Leaves turned under and they look so sad. I sprayed them with spray that is for vegetables.
I may have waited too long because I wasn't sure what to spray them with, and they loved Sevin dust.
If they make it, will the leaves turn back up. What else should I do, if anything?
I also have powdery mildew on a lot of plants.
I wash them with soda and dish soap.
Help!
Ronda
Whiteflies are very difficult to control. Commercial growers often live with them.
However, you can spray them with a summer-oil pesticide and that will significantly knock down the population.
You need to read the label and make sure you understand before using it.
Do not spray when it is very hot. The oil would damage or even kill the plants.
Darrell Blackwelder
Rowan County extension service director and agent
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