You need to hurry up and catch them before they start producing this regurgitation called honeydew and overall it will stunt the growth of your lady. There are 2 ways you can handle this. Organically and non organically. If you aren't against pesticides, the is a one time fix for whiteflies. its called Monterey once a year and its a root drench, works well. by the next watering all the flies will be falling from all the leaves, (pretty cool). Oooor if your problem isnt that bad get a dr doom bomb. Now organically, you can make a mixture of honey and water, One would want the consistency of a very mild stickiness. spray your ladies with said potion and the flies will not want to land on it because of the very thin layer honey you have coated it with. If you get it just right they wont want to land on it and they will get stuck if they do. After a few days wash off remaining residue and Wha-La, NO MORE whiteflies. Good Growin...