Knotweed! was developed by Naturedigger, LLC as an identification and educational tool for homeowners, property managers and the general public to identify knotweed in all stages and seasons.

Knotweed! offers identification assistance and environmental and financial impacts, as well as manual control options for small infestations. Also included is a basic management plan, benefits of knotweed and information about legal issues facing homeowners in the U.K.

Once an invasive species becomes an economic issue and reduces property values, it should be taken very seriously. Early detection, rapid response (EDRR) and on-site presence/monitoring is the best course in managing this species. If knotweed is identified early enough, there is a chance it can be eradicated in a single season, if not, it can take five to ten years of diligent management and monitoring to control or potentially eradicate.

This app does not cover chemical applications to control knotweed, since many countries are banning glyphosate, an herbicide often used as a control method. Naturedigger cannot recommend the use of glyphosate due to the World Health Organization's International Agency for Research on Cancer's classification of glyphosate as "probably carcinogenic to humans."

What's New

Version 2.1

•iOS 12 update
•new Quick ID slides for all knotweed species
•compare all knotweed species slides
•additional photos
•bug fixes

Ratings and Reviews

nor30sa ,

Very Informative

This app is very informative. Lots of ideas, warnings and anyone with knot weed needs this App.


Naturedigger LLC
102.1 MB
Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Copyright (c) 2016, 2018, Naturedigger, LLC. All rights reserved.


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