Circular scale
l parts of the world, mostly in association with the citrus industry. In more northern countries of its range, it occurs in greenhouses. In addition to [...] humid environments. In citrus, it tends to prefer the lower and central parts of mature trees. Circular scale prefers the leaves, but in high infestations [...] to 2 mm in diameter with a slightly raised, sub-central point which is sometimes pale. When the scale is lifted, the insect beneath is yellow and up to 1