Neem fertilizer and pesticide

[earlypea]

Hi
I was wondering if anyone had come across this before or knew more about it.  

I know about neem oil, but this would be used in the soil and I've a major ant problem red and black in so many places for some reason which I can't get rid off and the blacks are nurturing the black fly for next year's decimation.

It says it affects 'white ants', whatever they are - in this post (AKA sales pitch) along with so many other pests.
http://www.gardenplansireland.com/forum/about165.html

....so I'm wondering if it's worth trying?  Maybe, it's too good to be true?
You can get it here, but it's pricey.
http://www.thenaturalgardener.co.uk/neem_natural_fertilizer.php

[earlypea]

[grannyjanny]

I've heard of neem oil in respect of head lice so it should be effective against pests.