If you are interested in the issue of Invasive Weeds and live in the Southwest United States, please consider attending the Southwest Vegetation Management Association annual conference in Tempe, AZ on Oct 27 & 28.
I will be one of the presenters. My topic, "Weed Spray Equipment - You're Not Going to Believe This" is intended to be a humorous, but helpful discussion of problems that can be avoided when using Weed Spray Equipment.
If you have any questions, email me. I hope to see you there.