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.
1 Aphids are the most common tiny red insects found on plants. 2  These insects pose a significant pest control problem for gardeners. 3  Aphids are tiny, but they can cause big damaâ¦. 4  Common Plant Pests That Cause Plant Damage Successful gardeners are experienced in the art of identifying and managing pest insects.