Boisduval scale
and in greenhouses in more temperate climates. It is very polyphagous and can be a pest of orchids, palms, pineapples, bananas and many other plants. Damage [...] species of Diaspi s are very similar in their appearance and damage symptoms. Here, the Boisduval scale is described in more detail, as it is the most important [...] presence of the scales on upper and lower leaf surfaces, fruits, and stems of plants. On palms, Boisduval scales are normally found on the leaves and stems.