I have three night blooming jasmine plants along the side of my lanai. I did have a problem with mealy bugs the first year with the first plant but have started using Bayer's 3-in-1 Systemic on all of them and have not had a problem since. I do hate to use it because most of my "outside" plants are there for the enjoyment of not only myself and neighbors, but for the enjoyment of the critters. But the mealybugs were awful that time. :(
I completely forgot to mention the Sweet Almond Bush that sits out there with the night blooming jasmine, the Madagascar Jasmine vine blooming inside the lanai and my potted rose bushes! I love sitting outside evenings and early morning and getting the combined scent of all of them.