Circular scale
lower and central parts of mature trees. Circular scale prefers the leaves, but in high infestations it may spread to fruits, stems and trunks, and may cause [...] plant. Life cycle and appearance of Circular scale Female nymphs and adults have flat to moderately convex, circular scales up to 2 mm in diameter with [...] beneath is yellow and up to 1.7 mm long. The adult male is 0.7 mm long and has a single pair of wings. First-instar nymphs are 0.3 mm long and have legs, but