Posted: 05/05/2013 at 18:59
All you need is a bowl of tepid water, a bag of cotton balls and some marigolds. Sounds simply, it is ! Dip a cotton ball into the water and wash the the devils off - they come off so easy. Repeat the process the following year.
I have a large Acer which had become seriously infested and found this method online. Took about an hour but so worth while. Only noticed a few so far....but they'll not last long, cos they're about to get the same treatment. lol