While it is not yet on Oprah's book list, the Handbook on our Wildland Invasive Species Program web site is getting great reviews from readers. This is very gratifying. But please note that we strongly value your constructive criticism on how we can improve the handbook. If you encounter some inscrutable passage, or notice some oversight, please contact us.
Piston pumps can apparently wear more rapidly when powders are used.
The group would like to brush hog the dead knotweed before the spraying in a particularly large area of what appears to be knotweed monoculture. The idea is to get rid of the dead stuff. We are worried about the potential danger in helping the plant to spread by dispersing seeds. On one Washington preserve, the plant is common along public trails and disturbed areas, and also appears to be invading an adjacent steep, sandy hillside dominated by native shrubs. We had intended to cut and apply glyphosate to the stumps in April and May.