Washington State Department of Agriculture is also warning people about it: https://www.facebook.com/WAStateDeptAg/?__cft__[0]=AZVWz_jA-UdNpf-LzsvTtBmT8nBvluS2

Washington State Department of Agriculture is also warning people about it: https://www.facebook.com/WAStateDeptAg/?__cft__[0]=AZVWz_jA-UdNpf-LzsvTtBmT8nBvluS2Oadn4btVgMpqoxdvGraFekj77yEsakXYaCPxascMjb1qDvQQoQqIeTiQCon95Wr4w9bJTIECyyPQSRgc9lKN-Aj2InL6HMXKPsYLMDrZmeYZ4dL5vho52lwVeINuEH8hNVRwXstsAxsKYydsrKcc-W7XqF_ahKpOmXg&__tn__=-UC%2CP-y-R https://www.facebook.com/WAStateDeptAg/?__cft__[0]=AZVWz_jA-... Friends in the UK are reporting it happening there, and are being advised to either burn or boil seeds for several minutes. Anyone know what this is about, what the actual purpose is?