I heard a new ad on the radio today that is asking all hunters to wash their boots, 4-wheelers, and other gear to remove invasive species plant seeds before going into the field. The ad claims that invasive species are causing a reduction in the natural foods available to moose. They gave a website, but I couldn't remember the name and it didn't turn up on a Google search. There is an ADF&G page on this subject, but it looks to focus on invasive animals and aquatic plants.
The following site has a lot of info about invasive plants on the Kenai Pen.
Just thought this might be worthy of posting in here. And any discussion it might generate...