Last year 2015 I moved into a new place. It was a blank slate for putting in flower gardens and a raised vegetable garden with great southern exposure. I had a bumper crop of vegetables and it was great! I handled the massive amounts of pillbugs, earwigs and centapeeds buy sprinkling borax around and havent had a problem this year. Last year the only aphids I had were on my one rose bush. But was able to eliminate them with soap and water spray. THIS YEAR the aphids and white flies are on EVERYTHING! I've been spraying soap and water but the white flies just fly off (and land on another plant) the aphids keep coming back everyday. I've even damaged my own plants trying out different variations of on line "potions" to rid my garden of them. I bought Neem Oil from Amazon. And thats working slowly, very slowly.
Here's my QUESTION: Has anyone used a product called Azasole? You water it around your plants, the roots take it up and I tricks the bugs into thinking it's a Neem tree. I think that means it's a systemic pesticide? Is anyone else having this problem this year? Anyone have a better solution than spraying water and insecticidal soaps. Your answer need not be organic only! I've been so unhappy chasing and worrying about these darn aphids and white flies. They killed my cucumbers, one of my giant pumpkins, the zucchini and an array of young seedlings not to mention the flowers that are misshapen and ugly.

The only thing I've used thus far is neem oil spray. that has worked WONDERS on the white flies. I have also been releasing white fly parasitic wasp eggs and green lacewing eggs AND ladybugs into the garden. the green lacewings and ladybugs have very efficiently dealt with the pests and the white flies really decreased as soon as I got out the neem but I suspect the natural predators are why they've stayed gone.

My white flies are all over my columbine every day, even after I spray and spray

I would not have piggybacked your question on the back of a 6 year old thread.
But to answer your question, what exactly are you spraying it with?

Because part of this question is current let me add what I do. I spray white fly with Simple Green and let it sit for a few minutes then wash the plant down with the hose. I have also used isopropyl alcohol, let it sit a few minutes, then rinse as above.

I spray with water using a hose attachment that produces a strong jet. Don't be afraid of hurting your plants with the water jet, they may look a little beaten up after you spray them but they will perk up soon. You need to spray the plants every day and be sure to spray underneath each leaf.

Biologicals (beneficial insects like ladybugs) have also worked for me. They do work and its a lot of fun to watch the ladybug nymphs eat the aphids.

Don't be shy about pulling any plants that are totally overwhelmed with bugs. It's better to get rid of them than let them become a source of infection for other plants. And its early enough in the year to replace them.

Good luck