I'm going to give you a few helpful hints. Scale insects are very common on Euonymus varieties and some varieties of Magnolias. Variegated Euonymus are extremely popular landscape plants among homeowners. There are many different varieties ranging in color from green, white, and yellow. The pattern of the variegation varies on the different varieties.
All varieties are susceptible to attack from Euonymus scale insects.
Scale infestations are easy to spot because the insects build a very hard protective cover over top of themselves for protection. These protective covers look like little tiny white spots on the underside of the leaves and on the stems of the plants. These protective covers are like a garage for the insects to hide under. While hiding in this little garage the insects attach themselves to the plant and suck the nutrients from the plant. Thousands of these little insects feeding on a plant can cause severe damage.