I bought a tall jasmine plant (Jasminum officinale) this past spring, it was blooming a lot a month after I bought it home. Recently some of the leaves are drying, and the soil is fine, so I'm not sure if it is the mealybugs that's killing my plant or if there is some deceases. There are so many mealy bugs! I spent an hour getting rid of them using cotton swaps and perioxides a month ago, and now they are back again! How do you prevent mealy bugs from breeding on my plant? Please help~