The IUCN - World Conservation Union/Species Survival Commission (SSC) Cycad Specialist Group (CSG) - Invasive Pests Subgroup is dedicated to providing factual information regarding the spread and control of invasive pests that threaten wild cycad populations and/or ex-situ cycad collections of conservation importance. The following link will take you to a page that was created by the CSG Subgroup on Invasive Pests as a clearinghouse for information related to cycad aulacaspis scale (CAS), Aulacaspis yasumatsui Takagi (Hemiptera: Diaspididae)—the single most important threat to wild cycad populations and conservation collections around the world at the present time.

http://www.cycadsg.org/pages/CAS.htm

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