Mealybugs are white, oval and usually covered in a white substance that looks like cotton fluff. They are found individually or in clusters on stems, leaves and where the leaf joins the stem. They suck plant juices and weaken the plants over time. They crawl slowly and leave sticky honeydew behind.
Use an alcohol soaked cotton swab to remove as many as the insects as possible, then spray with insecticidal soap or End-All.