weeds

Here’s help for managing weeds on farms

Weeds cause $8-plus billion in crop losses in the United States every year, says the introduction to the 2020 Ohio, Indiana, and Illinois Weed Control Guide, which aims to help you keep from seeing any part of those losses. Written by researchers with CFAES, Purdue Extension, and Illinois Extension, the updated 220-page bulletin provides science-based suggestions for managing weeds in corn, soybeans, small grains, and forages—plus hayfields, grass pastures, and Conservation Reserve Program lands, too.

Read about the bulletin and buy it—the price is $15.25 plus shipping, or $12.25 for a downloadable PDF—from OSU Extension Publications at go.osu.edu/2020weedcontrol.

How you can help slow down waterhemp

An agricultural weed called waterhemp is “spreading at alarming rates” in western Ohio, says Jeff Stachler, an educator with CFAES’s OSU Extension outreach arm. On July 25, he’ll share ways to slow down or stop that spread at Manure Science Review. One of the event’s co-hosts is CFAES.

Waterhemp, a cousin of Palmer amaranth, has become increasingly resistant to weed-killing herbicides.

A rose is a rose is sometimes a noxious weed that’s extremely difficult to eradicate

Image of multiflora roseIt’s a tough row to hoe trying to get rid of multiflora rose. It can almost be hand-to-hand combat. Or, at least, hand to thorn. Fortunately, CFAES has tips that can help you. Read Multiflora Rose Control, which you can get from our online bookstore. (Photo by Fredlyfish4 licensed under CC BY-SA 4.0 via Wikimedia Commons.)

Watch: Pigweed? Or pigweed on steroids? Here’s how to know

Watch the CFAES video above for tips on telling your pigweeds apart: redroot pigweed vs. the now-invading Palmer amaranth, which some experts call “pigweed on steroids,” and not as a compliment. Accurate identification of pigweeds, you could say, is the first step to sending them squealing. Beating problem weeds is important because troublemakers like pigweeds can reduce how much food a farm produces, how much money the farmer makes, and the farm’s overall success and sustainability.

How weeds develop herbicide resistance, and what we can do about it

Todd Gaines talks about his research on managing weeds and his work with students and farmers in a video published last summer by Colorado State. Gaines speaks on Wednesday, Feb. 4, in the spring seminar series of CFAES’s Department of Horticulture and Crop Science.

Sustainable food production and glyphosate resistance: Feb. 4

Colorado State scientist Todd Gaines presents “Sustainable Production Systems: Implications of Glyphosate Resistance” from 11:30 a.m. to 12:25 p.m. on Wednesday, Feb. 4, in 244 Kottman Hall, 2021 Coffey Road, on Ohio State’s Columbus campus and by video link to 121 Fisher Auditorium at CFAES’s research arm, OARDC, 1680 Madison Ave., in Wooster. Glyphosate is a broad-spectrum systemic herbicide. Gaine studies sustainable weed management and its role in sustainable food production. He speaks as part of the spring seminar series of CFAES’s Department of Horticulture and Crop Science. Free. Information: barker.169@osu.edu. Related post.