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Why Jefferson Conservation District Surveys Weeds

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How Jefferson Conservation District Surveys Weeds

How Jefferson Conservation District Surveys Weeds

Final Contractor Map

Helpful things to bring on a survey

Binoculars - seems pretty simple and straightforward, but the first two years I was doing this I didn't use them. When I started using them, they were a game-changer. Made my surveying much more efficient, to, for example, see that a hillside nearby is covered in mullein and to include it in the spray area.
Cda noxious weed booklet
Apps

Two of these apps require you to have access to data. Someone presented a study at the Western Society of Weed Science conference in 2024 that said that PictureThis is the most accurate of the apps. However, I like iNaturalist more because it gives you several potential species, and you can flip through photos to make a final determination.
The other two apps you can use even if you don’t have data. Seek is good for instant gratification but I find it less trustworthy. Colorado Wildflowers is an excellent app but it takes more work to make an ID.