Cycad aulacaspis scale, Aulacaspis yasumatsui Takagi (Hemiptera: Diaspididae), is the single most important threat to wild cycad populations and conservation collections around the world.

The clearinghouse page for information related to Cycad aulacaspis scale can be found on the Cycad Specialist Group website located at the following URL:
http://www.cycadsg.org/pages/CAS.htm