Phytophthora pluvialis is a tree disease which affects Western Hemlock and Douglas Fir trees, among others. It is a fungus-like pathogen which causes needle cast (where needles turn brown and fall off), shoot dieback, and lesions on the stem, branches, and roots.P. pluvialis was first seen in Devon and Cornwall in 2021, before being identified in Cumbria and then Scotland. To limit the spread Scottish Forestry has issued Plant Health Notices under regulation 17(1) of The Plant Health (Official Controls and Miscellaneous Provisions) (Scotland) Regulations 2019. The Notices bring in restrictions on felling and movement of relevant susceptible material within the demarcated areas, and came into effect on the Start Dates noted in the attributes of each area.This dataset shows the boundaries of the demarcated areas referred to in the Plant Health Notices.For more detailed information please see the metadata record on Scotland's SpatialData.gov.scot metadata portal.