I've read that malathion will get rid of the mealy bugs. You may need to use the malathion again two weeks after the first treatment and then you will need to spray regularly with neem oil to control them. I had mealy bugs on my night blooming jasmine last year and they were a royal pain to get rid of. Make sure you treat the soil around the plant as well and if they are in pots, treat the pots. Good luck, I hate those things!!
