Fall Armyworms

Fall armyworm on damaged leaf
Early detection of fall armyworm caterpillars is crucial, as they can cause significant crop damage once they reach ¾-inch in size. (CropWatch file photo)

Pasture and Forage Minute: Tips for Fall Armyworm Scouting and Corn Silage Harvest

August 20, 2024
Recommendations on scouting and treatment thresholds for fall armyworm, control of late summer pasture weeds, and best practices for corn silage harvest and storage.

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Cheatgrass closeup
Rejuvra™ is a new rangeland herbicide product from Bayer that controls cheatgrass seedlings. It should be applied in early fall before seeds germinate and can provide control up to two years post-application.

Pasture and Forage Minute: Managing Cheatgrass, Last Alfalfa Harvest and Fall Armyworms

September 19, 2023
Management insights on controlling cheatgrass, wild oats and fall armyworms in pastures, and using growing degree days to schedule your final alfalfa harvest.

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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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Musk thistle

Pasture and Forage Minute: Scouting for Thistles and Fall Armyworms, Soybean Residue as Forage

September 29, 2021
Extension educators review their tips for controlling thistles in pastures, scouting for fall armyworms and how to meet nutritional requirements while grazing soybean residue.

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Fall Armyworm

Fall Armyworms in Pastures, Alfalfa, Small Grains, Cover Crops, and Lawns

September 24, 2021
We continue to receive questions on management with the unprecedented number of fall armyworms experienced in Nebraska this fall. The following is a Q/A to address the specific questions we’ve received.

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Alfalfa defoliation by fall armyworms

Pasture and Forage Minute: Alfalfa Pests and Last Cutting, Controlling Cheatgrass

September 2, 2021
Extension educators discuss timing of the last cutting of alfalfa and scouting for fall armyworms, plus best practices for controlling cheatgrass in pastures.

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Fall armyworm
Fall armyworm. Photo by Nathan Mueller

Fall Armyworms Damaging Alfalfa in Southeast Nebraska

August 24, 2021
Fall armyworm caterpillars do most of their feeding in the last stage. If you are not watching fields on a regular basis, you may not notice damage or armyworms until they are large and doing significant damage.

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