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Sandy from Vancouver, Wa writes

When is the best time to spray Queen Annes Lace (wild carrot) using Crossbow Herbicide on our 4 acre non-grazing pasture?

Answer:

If you are planning to use a product like Crossbow Herbicide you would typically want a late summer/early fall application for some of the best results with a post-emergent heribicide. Wild carrot can be difficult to completely get rid of due to their seed cycle, so dilligence and product rotation will be needed, if possible. I have linked for you below a really helpful guide on Wild Carrot and it goes over its life cycle, timing and ingredient recommendations from Michigan State University through their tests and what they found successfull. 

https://archive.lib.msu.edu/DMC/Ag. Ext. 2007-Chelsie/PDF/e2573.pdf

Answer last updated on: 08/10/2017

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