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Crop Sciences Professor Patrick Tranel

New Mutations for Herbicide Resistance Rarer than Expected, Study Finds

June 3, 2019 | Posted in Crop Protection
Source: University of Illinois News Bureau
Seeking to better understand herbicide resistance, researchers exposed more than 70 million grain amaranth seeds to a soil-based herbicide. Though preliminary, the findings suggest that the mutation rate in amaranth is very low, and that low-level herbicide application contributes little — if anything — to the onset of new mutations conferring resistance, say researchers at the University of Illinois.
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Palmer Amaranth Spreads In Iowa

February 26, 2014 | Posted in Crop Protection
Source: By Bob Hartzler, Extension Weed Specialist, Iowa State University
Palmer amaranth is native to the Southwest but has been expanding its range for at least 50 years. Most recently it has moved into the Midwest and has been reported in all Corn Belt states except for Minnesota and the Dakotas.
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Fungus May Offer Natural Weed Control

November 21, 2013 | Posted in Crop Protection
Source: By Jan Suszkiw, USDA
A naturally occurring fungus may prove useful in the fight against Palmer amaranth, an aggressive southern weed that can grow at the rate of two inches a day and outcompete corn, cotton, soybean and other crops for resources, potentially reducing their yields.
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Waterhemp Problems Spread To Indiana

September 30, 2011 | Posted in Crop Protection
Source: By Bill Johnson and Glenn Nice, Purdue Weed Science, Purdue University
Waterhemp has been present in Indiana field surveys for at least the last 10 years but recent control issues with glyphosate is moving this weed up on the radar of concern for Indiana growers.
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