The West Palaearctic Regional Section is the most active of the regional sections with 20 working groups (that focus on crops, agricultural pests, and other topics) and five commissions which usually meet in different locations in member countries.
West Palaearctic Regional Section er den mest aktive af de regionale afdelinger med 20 arbejdsgrupper (som fokuserer på afgrøder, skadedyr, sygdomme og andre emner) og fem kommissioner som normalt mødes forskellige steder i medlemslandene.