Bob Harveson - Extension Plant Pathologist, Panhandle Research and Extension Center

Bob Harveson

4502 Ave I Scottsbluff NE 69361-4939

Faculty Bio

Sugarbeet replanting field trial

When To Replant Sugarbeets: The Relationship Between Population, Yield, And Replant Timing January 8, 2018

An article from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics: Early season stand loss from wind or frost can be severe enough to require replanting of a sugarbeet crop. Three years of field trials at the Panhandle Research and Extension Center were conducted to determine just how much stands need to be reduced to justify replanting.

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Figure 1. Wilting symptoms in seedling sugar beet caused by Rhizoctonia root and crown rot. Soil testing and using a disease index developed at the university's Panhandle Research and Extension Center can help identify high risk fields before planting. (Photos by Bob Harveson)

Creating a Soil Disease Index for Nebraska Sugar Beet December 13, 2017

Soil testing and a disease index developed at the university's Panhandle Research and Extension Center can help growers identify rhizoctonia risk levels of fields before they're planted to sugar beets.

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Wheat field with stripe rust
Figure 1. Stripe rust in a grower's winter wheat field in Kimball County in June 2015. Taking steps now before planting can help reduce disease impact for your 2018 crop. (Photo by Stephen Wegulo)

5 Pre-Planting Steps to Reduce Disease Problems in Wheat August 28, 2017

Before planting winter wheat this fall growers have an opportunity to address and manage several factors that could lead to reduced yields in 2018. Here are five steps to take.

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Has Ergot Altered Events in World History? August 17, 2017

One of the few plant diseases that can also cause direct damage to humans, ergot, particularly in rye grain, may have been a factor in several world events..

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Wheat stripe rust
Figure 1. Stripe rust was found this week in wheat fields in two Nebraska counties ― Sheridan and Box Butte ― and growers are urged to scout fields regularly.
stripe rust in wheat

Stripe Rust Identified in Panhandle Wheat April 18, 2017

Minor levels of striped rust have been confirmed in winter wheat from a field in Sheridan County north of Rushville. The infections occurred on only a few leaves and pustules were very small and difficult to see. Growers are encouraged to continue scouting wheat for disease; a fungicide application is not recommended at this time.

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Topped sugar beets and storage sacks
Figure 1. Topped sugar beets are placed in bags and storage conditions are simulated to study the effect of post-harvest fungicide treatments.

Panhandle REC Studying Sugar Beet Storage Treatments December 14, 2016

Four post-harvest sugar beet fungicide treatments are being evaluated as part of a new research study underway at the University of Nebraska Panhandle Research and Extension Center in Scottsbluff. The study, which is looking at whether fungicide treatments can improve winter storability of beets, is being conducted with support from Syngenta and Western Sugar Cooperative.

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wheat stripe rust in the Panhandle
wheat stripe rust in the Panhandle

Stripe Rust Reports in Wheat Lead to Winter Treatment Research November 18, 2016

Reports of stripe rust in wheat continued throughout the Panhandle this week, particularly in Kimball and Banner counties. With additional sightings from central and southwest Nebraska, the disease appears to be widespread statewide this fall.

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