Weed Management

Soybean harvest residue
With higher hay prices and forage shortages this year, interest has grown in baling soybean residue; however, it's important for producers to weigh the costs — including potential erosion and nutrient removal — against current market value to calculate the cost effectiveness for their operations.

Pasture and Forage Minute: Baling Soybean Residue, Winterizing Alfalfa by Growing Degree Days

October 11, 2022
Higher hay prices and forage shortfalls have many producers considering baling soybean residue, but it's important to first analyze the cost effectiveness. Plus — concerns on nightshade and winterizing alfalfa.

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Fall armyworm caterpillar

Pasture and Forage Minute: Grazing for Interseeding, Controlling Thistles and Fall Armyworms

September 27, 2022
Following last year's atypical infestation of fall armyworm caterpillars, extension educators urge preparedness in the event of a reoccurrence this fall. Plus — why overgrazing is a good strategy prior to interseeding legumes.

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Combine cleaning steps

Preventing Weed Seed Distribution from Combines

September 22, 2022
Weed seeds accumulate in different parts of a combine during harvest, encouraging weed growth in new fields; however, weed seed distribution can be reduced by targeting specific areas of the combine for a quick clean-out at the end of the day.

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Cattle grazing cornstalks
Safely grazing drought-stressed cornstalks can be accomplished with an appropriate grazing plan and fencing precautions.

Pasture and Forage Minute: Grazing High Nitrate Cornstalks, Late Summer Weed Control

September 14, 2022
Extension Educator Todd Whitney reveals techniques to safely graze drought-stressed cornstalks — plus, more on late summer weed control and planting small grains for spring forage.

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Alfalfa harvest

Pasture and Forage Minute: Alfalfa Irrigation and Last Cutting, Winter Annual Brome Control

September 8, 2022
Tips on scheduling final irrigation and last cutting for alfalfa this fall, and controlling cheatgrass and wild oats in pastures.

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Cover crop field

The Impact of Cover Crop Species and Termination Time in Weed Suppression and Corn Yield

September 8, 2022
First-year results of a three-year study on weed suppression and yield results with regard to termination timing of cereal rye and hairy vetch cover crops.

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Amit Jhala at SCAL field day
Amit Jhala, Department of Agronomy and Horticulture associate professor and extension weed management specialist, discusses management of glyphosate-resistant weeds in corn and soybean.

2022 Weed Management Field Day Presentations Available Online

August 2, 2022
This year's demos featured weed control in corn and soybean that included efficacy, crop safety and comparison of new herbicides and non-chemical methods for weed control.

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Weed Management in Storm-damaged Soybean

June 30, 2022
If considering post-emergence herbicide as an option for weed control in storm-damaged soybean, it's important to check the maximum amount of active ingredient that can be applied to avoid crop injury.

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