Weed Management

Palmer in corn
Palmer amaranth invades a corn field in south-central Nebraska. (CropWatch file photo by Amit Jhala)

Effect of Drought on Weeds: Results of Global Meta-analysis

June 13, 2023
Researchers examined more than 1,000 studies to compile a comprehensive report on weed germination, growth and seed production during periods of water stress.

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This Week on N Field: Residual Herbicides in Corn

June 8, 2023
Nebraska Extension Weed Management Specialist Amit Jhala discusses the effect of dry soil conditions on activation of residual herbicides in corn and what can be done to control weeds.

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This Week on N Field: Leafy Spurge Management

June 1, 2023
Leafy spurge is on the move — Nebraska Extension's Amy Timmerman shares tips on identifying and managing this invasive weed as it spreads to new areas of the state.

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Leafy spurge
An effective strategy for controlling leafy spurge is to pair spring applications that prevent seed production with a fall treatment to control new growth.

Pasture and Forage Minute: Controlling Alfalfa Weevil and Leafy Spurge, First Cutting Alfalfa

June 1, 2023
With first cutting alfalfa to begin soon, extension educators discuss the importance of scouting for alfalfa weevils to mitigate yield losses and strategies for timing harvest, plus control options for leafy spurge.

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Cattle in pasture
Whether cereal plant forages are grazed out, hayed or harvested as wheatlage this year, the goal is to timely plant subsequent summer annuals between mid-May to mid-June for optimizing yields.

Pasture and Forage Minute: Wheat Grazing vs. Grain Value, Choosing Summer Forage

May 16, 2023
This week — Recommendations for producers considering wheat for forage, including varieties and planting timelines for summer annual grasses, plus tips on control measures for poison hemlock.

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This Week on N Field: Burndown Weed Management

May 12, 2023
Nebraska Extension Weed Management Specialist Amit Jhala provides recommendations for burndown weed management before planting corn or soybean.

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Musk thistle
Musk thistle control should be done in spring when plants are in their short rosette growth form, as herbicides are ineffective after the flowering stage.

Pasture and Forage Minute: Equipment Maintenance, Controlling Musk Thistle and No-Till on the Plains Tours

May 11, 2023
This week, extension educators review a checklist for pre-season hay equipment maintenance, tips for controlling musk thistle in pastures, and details of this year's No-Till on the Plains Whirlwind tours in June.

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Alfalfa field
Spring drought can result in stressed alfalfa from aggressive weed growth, resulting in thinner stands and lower yields. View the options for herbicide control in post-emergent and established alfalfa below.

Pasture and Forage Minute: Alfalfa Weevil, Weed Control and Summer Pasture Turn-out

May 4, 2023
This week — Controlling alfalfa weeds with post-emergent herbicides, scouting for alfalfa weevil, and planning the date and pastures for spring turn-out.

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