Could anybody tell me how to get rid of some little black flys that seem to have taken up residence in the pot for my dragon tree. I did leave it out in the summer so it could enjoy the sunshine. its a well established plant I have had it a number of years and never noticed the flys before. how can I get rid of them without harming the plant?

There are sprays you can buy, check B&Q, Homebase that kinda thing. I had them on some basket plants but got rid with sprays.