Knotweed! offers high res images to help users learn how to identify all knotweed species in all stages and seasons before it's too late. The app also gives guidance on manual control and disposal should a homeowner find these highly invasive species on their property. These are serious plants that can cause incredible property damage as well as devastating environmental damage. Japanese knotweed, specifically, is such a huge issue in the U.K. that prospective home buyers can be denied a mortgage if Japanese knotweed is present on the property, unless a management plan is in place for the property. Learn about all four species and stay tuned as more updates are planned for this app. Keep Knotweed! close, and when you see any of the knotweed species growing on the side of the road you will know how to identify them, and how to avoid spreading them!