Can't say what that is offhand, but I'd spray it with light horticultural oil. This product won't hurt your plant; its action is to smother eggs/larvae/crawlers/adults of certain types of pests, such as aphids, mealybugs and related sorts of insects. You mix it with water and can apply it with any type of sprayer -- hand, pump, backpack. Spray in the cool of the evening when there's no hot sun on the plant. Sun Oil is one brand of light hort oil, but there are others; I believe Greenlight makes it, too. Just be sure you get LIGHT hort oil, not what's called dormant oil spray. That's a different product that's used only on dormant plants -- it'll seriously injure a plant in leaf.

Marty