There are multiple metric units to choose from! This tutorial goes through the process of choosing the best metric unit to use for measuring the mass of a given object.
The most common aphids on houseplants are the light green ones (pear aphids), but aphids can also be found colored pink, white, grey and black. Additionally, winged aphids can appear when colonies are established and fly to infect new plants. Juvenile aphids (nymphs) look like smaller versions of the adults.
Leaves Yellowed and Curled - Aphids. Honeysuckle aphids are not much bigger than the head of a pin, and have spindly legs and soft, pear-shaped bodies which may be green, brown, black, or pink. They feed on vines in the spring, when the tender new growth emerges. They suck plant sap, which causes the leaves to curl, pucker, and yellow.