Photos

November 2024: Ariel view of the biofumigation trial plot at the University of Georgia before incorporation (a randomized complete block design with 4 reps per treatment of biofumigation: weedy control. mustard that gets plastic after incorporation; and mustard only);  Tim Coolong flail mowing the mustard; and the soil after the rototiller and plastic layer.

Aerial view, biofumigation trial, University of Georgia

flail mowing mustard, Georgia biofumigation trialsoil after tilling, biofumigation trial, University of Georgia

October 2024: Soil sampling ahead of incorporation of the mustard plants for the biofumigation trial, Athens, Georgia. Photo credits: Brian Kvitko, University of Georgia.

soil samplingsoil sampling

biofumigation trial, Athens GAbiofumigation trial, Athens, GA

August, 2024: Jake Mowrer laying down plastic mulch in College Station, TX. Photo credit: Thomas Isakeit, Texas A&M University.

Laying down plastic mulch

Photos from the biofumigation baseline soil sampling in Athens, Georgia, Summer 2024

Dr. Tim Coolong's team inoculated 500 onion bulbs with Burkholderia, a bacterial pathogen. The infected bulbs will be used to infest the soil with Burkholderia for the UGA Athens green biofumigant trial. Photo credit: Tim Coolong, University of Georgia.

onion inoculated with Burkholderia

Brian Kvitko and  Sujan Paudel collect baseline soil samples for the green biofumigant trial field at the UGA Horticulture farm. The baseline soil samples will be used determine the initial Burkholderia populations as well as microbial and nematode communities. Photo credit: Brian Kvitko, University of Georgia.

soil sample collectionsoil sample collection

sample collectionsample collection

Photos from the University of Georgia, 2024

Below left: Members of the Dutta lab at the University of Georgia scouting onion fields for disease in Vidalia, GA. Right: Fungicide trial. Photo credits: Kephas Mphande.

Dutta lab members scouting onionsonion plots in Vidalia, GA

Below Left: Center rot caused by Pantoa ananatis. Right: Onion rot caused by Pantoa ssp and Burkholderia ssp. Vidalia, GA. Photo credits: Kephas Mphande.

Below left: Fertilizer trial plot. Right: Onion harvest in Vidalia, GA. Photo credit: Timothy Coolong.

fertilizer trial plotonions drying

Harvested and bagged onions, Vidalia, GA. Photo credit: Timothy Coolong.

harvested onions, Vidalia, GA

Photos from Texas A&M University, 2023-4

Leaf blight two days after inoculation of leaves with B. gladioli. Photo credit: Thomas Isakeit

Below: Burkholderia gladioli bulb rot from south Texas in the field. Photo credits: Thomas Isakeit.

Harvesting and packing onions, Lower Rio Grande Valley, TX. Photo credits: Thomas Isakeit.

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Funding

This project was funded by the Organic Research and Extension Initiative grant, part of the USDA National Institute of Food and Agriculture. Award Number 2023-51300-40913

Onion-IQ: Improving Quality, Resilience, Soil Health and Food Safety in Organic Onion in the Southeastern and Southwestern U.S.