Australian Herbicide Resistance Initiative
Blog: AHRI insight
Selfish weeds can manipulate the nitrogen cycle to suit themselves

Wed, 1 Nov 2017

Weeds are selfish, self-centred, narcissistic, manipulative pieces of work that will do whatever it takes to make themselves look good and make the other plants around them look bad. Some weeds are so self-obsessed that they can manipulate the soil nitrogen into a form that is just the way they like it. New research by Cathryn O’Sullivan from CSIRO is showing that some weeds release chemicals from their roots that slow down the bacteria that are essential to the nitrogen cycle, retaining nitrogen in the ammonium form that weeds can potentially take up faster than crop plants. Totally selfish! Click…

Featured Publication
Publications PAM: Decision Support for Long-Term Palmer Amaranth (Amaranthus palmeri) Control

Mon, 30 Oct 2017

PAM is a bio-economic model focussed on simulations of Palmer amaranth control practices that can be used to control this devastating weed in US crop production farming systems. PAM was produced at the University of Arkansas (M Bagavathiannan now at Texas A & M), particularly involving the program led by Jason Norsworthy.


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