Bugs!

I forgot to ask... I am under attack! Or I should say my hibiscus plants are! When we moved in here in April 2004 I planted 5 hibiscus shrubs along the walkway up to the front door in different colors. They are great! I usually get the usual bugs like lice, but they are super easy to get rid off, just a spray of water and they are gone.

Now I have some other kind of bugs that are messing up the leaves, turning the yellow. The only thing I can find out is that they might be thrips (trips, blåsfoting in Swedish). They look like the little tiny bugs I see and they seem to act like them too. I have an organic bug killer that I used, but it doesn't seem to work that well. But I am not very patient either...

I don't want my poor hibiscus to loose all their leaves to these tiny critters! Any ideas?