Spraying invasive Weeds

Asked August 22, 2016, 5:05 PM EDT

What is the best time of year and the best chemical to use for the following in a pasture? 1. Spotted Knap weed 2. Dock 3. Canadian and Bull Thistle 4. That tall sticky weed 5. Tansy

Lane County Oregon weed issues pastures and forages

3 Responses

Timing depends on the growth stage of the weed and the herbicide.

Are the weeds in a pasture? What livestock are grazing there?

Are the weeds in a hay field? Do you sell the hay to others or use it all yourself?

Weeds are present with cattle grazing . We use the hay to feed in winter to our cattle.

Can you please email me directly at shelby.filley@oregonstate.edu? I am having trouble sending you the files I need to answer your questions.
Thanks!