Chris Proctor - Weed Management Extension Educator

Chris Proctor

faculty
Work Keim Hall (KEIM) 174
Lincoln NE 68583-0915
US
Work 402-472-5411 On campus, dial 2-5411
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icon-academic-capEducation

  • BS, Washington State University, 2007
  • MS, Washington State University, 2009
  • Ph D, University of Nebraska, 2013

Faculty Bio
CropWatch Introduction
Nebraska Crop Management Conference

Horseweed plant stages
Figure 1. (Top left) Newly emerged horseweed seedlings in the cotyledon stage. (Bottom left) Seedling in the rosette stage with true leaves formed. (Right) Horseweed plants that are early in the bolting stage.

Nebraska Extension Pest of The Month: Horseweed

January 5, 2017

Horseweed (marestail, Conyza canadensis L.) is a unique weed species that can emerge in both fall and spring. In Nebraska, unlike the eastern Corn Belt, horseweed populations predominantly emerge in fall as a winter annual.

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Chart showing corn yield as affected by planting date and hybrid maturity
Chart showing corn yield as affected by planting date and hybrid maturity

Finding the Balance Between Corn Yield and Cover Crop Biomass

November 29, 2016
Cover crops can provide either ecosystem services or forage benefits but understanding how they fit in cropping systems is still limited. This study assessed the effects of planting date (early and late), plant population (low, average, and high) and corn maturity (80 to 115 days relative maturity) on corn yield.

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Figure 1. Marestail seedling growing in a no-till field. Due to its small size in the fall, pay special attention during scouting, especially in no-till fields where residue can hide seedlings.during scouting.
Figure 1. Marestail seedling growing in a no-till field. Due to its small size in the fall, pay special attention during scouting, especially in no-till fields where residue can hide seedlings.

Fall is Optimal for Marestail Management

October 28, 2016
With corn and soybean harvest nearing completion in Nebraska this is a great time to begin scouting fields for winter annual weeds like marestail. Timing is critical to successful control of marestail, especially in no-till soybeans as many populations have evolved resistance to glyphosate and ALS-inhibiting herbicides.

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Palmer amaranth
Palmer amaranth

Your Help Needed to Identify Palmer Amaranth Distribution in Nebraska

September 2, 2016
Nebraska Extension is requesting help in identifying the distribution of Palmer amaranth in Nebraska by taking this short survey.

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Figure 1: Early-planted rye (left) and late-planted rye before corn at Concord, April 22, 2016.
Figure 1: Early-planted rye (left) and late-planted rye before corn at Concord, April 22, 2016.

Biomass Production of Winter Annual Cover Crops in Corn and Soybean

August 11, 2016
Rye was the leading biomass producer in the first two years of a four-year study exploring whether winter cover cropping in no-till corn and soybean systems in Nebraska can benefit soil quality despite their short growing season.

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Herbicide Options for Planting Forage Cover Crops after Corn and Soybean

March 18, 2016

Cover crop adoption is continuing to increase throughout Nebraska. Respondents to the 2015 cover crop survey conducted during Nebraska extension meetings indicated the top five desired benefits from cover crops are

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