Looks as if you have mealy bugs Loganfood.
I had a very light infestation in November - I used "Natures Answer" fungus and bug killer. I sprayed the plant and left it outdoors during the day when it was quite cool. I also used a bamboo skewer to squish all the bugs that I could, but yours is a mega infestation compared to mine! Worth doing the physical control though.
You must keep this plant isolated too.

They look like scale bugs to me. the best organic thing to do is to squish them. I wear rubber gloves when i do it. You can use a systemic insecticide. They have a protective layer that means direct spraying doesnt do any thing to them.

All of above and

Someone once told me to use a cotton ear bud and Methylated spirits and dab each bug with meths.

Do as Meanie and SBG say. Watch for any more which can be controlled with methylated spirits painted on with a fine camel haired brush, just dab it on the affected area, you don't have to move the plant.

Sorry Jiffy we posted at the same time.

definatly mealy bugs .if you have a pond and are going to use a spray be carefull as its poisonas to fish . squishing is best but not always practical i find . have a happy new year x

Happy New Year to you Leigh and all your doggies.

Just done a little research to distinguish the difference, and it would seem that they are of the same family.....

http://www.gardeningknowhow.com/problems/scale-bug-how-to-control-plant-scale.htm

These look as if they are mobile (I'm basing that upon the brown one with the antennae in the second photo), so it is important at the very least to move it away from other plants.

Not a problem Doctorbob.

sorted again bye my friend doctor bob and you have a happy new year to mate .

It's one of the cushion scale group, which has the worst of the scale and mealybug clans. Difficult to control due to the water repellent fuzz, and the waxy shell. Anything you spray it with has to be mixed with a surfactant to get it through both barriers. I've had the best luck with carbaryl, but both malathion and synthetic pyrethroids work, too. Provado will also work, but it's slow. Insecticidal soap will work by killing the juvenile crawlers, which means spraying every three days, over a period of several months. Tough critters!

I killed all of the scale insects on my indoor plant by spraying it (do it outside) with Provado Bug Gun.
They then poisoned themselves by feeding on the plant.
Result!