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.
Aphid Parasite Wasp - Aphidius or Trioxys sp. Family BRACONIDAE . This page contains pictures and information about Aphid Parasite Wasps that we found in the Brisbane area, Queensland, Australia. Body length 2mm. Aphid Parasitic Wasps are the very small wasps. They fly actively searching for aphids.