Interveinal chlorosis

September 2020 Disease Reports from the UNL Diagnostic Clinic

September 3, 2020
The following diseases and pests were reported in samples submitted to the UNL Plant and Pest Diagnostic Clinic from August 16 through September 2, 2020.

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Alfalfa
Alfalfa stand previously interseeded with grass and legumes near Columbus, NE. – Megan Taylor

Evaluating Alfalfa Stands Part II - Renovation Options

August 12, 2020
Typically, alfalfa’s autotoxicity makes planting into established stands impossible. However, in new stands that are less than 12 months old, there is a chance that reseeding alfalfa in areas that are extremely thin or void of alfalfa may see success.

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thinning alfalfa

Evaluating Alfalfa Stands Part 1 - Using the Hay Square Method

August 5, 2020
Were you expecting more from your alfalfa yields? Is it time to renovate, start over, or move on? Typically, evaluating stands occurs in the spring, but evaluating this fall will give you a better idea going forward and allow more time for future options.

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adult black blister beetle

Blister Beetle in Alfalfa

July 20, 2020
Last year in another state, 14 horses died and another 100 were sickened from hay that contained blister beetles. Usually Blister beetles are not a problem, but growers should be aware of the insect and what to scout for in their fields.

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alfalfa weevil feeding on trifoliates

Extension Crop and Pest Reports (May 25-29)

May 28, 2020
Extension educators report on what they are seeing in the fields this week in the panhandle, Nemaha, Furnas, Gosper, Harlan, Phelps, Platte, Boone, and Nance counties.

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alfalfa weevil lifestages

Scouting Advised for Alfalfa Weevil

May 6, 2020
Alfalfa weevils have been reported damaging alfalfa in north central Kansas. As temperatures warm up, expect to see alfalfa weevil larvae in southern Nebraska and slightly later, in northern Nebraska.

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alfalfa field

Weed Control in Alfalfa Post Green-Up

April 29, 2020
Scouting in early spring is the best way to categorize current weed problems and those that may become issues later in the season and into the following year.

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new buds on alfalfa affected by freeze injury

Freeze Damage to Alfalfa

April 15, 2020
April freeze nips alfalfa. Extent of damage varies based on numerous factors, but no management actions are recommended.

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