Probably the only pests you will have to worry about with your Broms are various types of scale, the worst of which is “fly speck scale” which can be seen as small black spots over the leaves. These scales can be controlled with insecticides specifically for scale pests. Scales will not be as much of a problem in plants which are given good light and air movement and where periodic inspection and maintenance is carried out. NEVER USE WHITE OIL SPRAYS.