Washington State University scientists have developed quick, inexpensive, on-site testing for soil pathogens. The easy tests utilize materials readily available to the public and will work anywhere in the world. The device relies on magnets to capture pathogens' DNA from the soil. A paper by the researchers lists all the equipment and materials required to construct the device, plus instructions on how to put it all together and conduct soil tests. The results were published in the Journal of Visualized Experiments, an open-access journal that includes a video showing how to assemble the testing device.
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