Gold Ridge Resource Conservation District

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Scientists Hope to Cultivate an Immune System for Crops

The world’s crops face a vast army of enemies, from fungi to bacteria to parasitic animals. Farmers have deployed pesticides to protect their plants, but diseases continue to ruin a sizable portion of our food supply.

Some scientists are now investigating another potential defense, one already lurking beneath our feet. The complex microbial world in the soil may protect plants much like our immune system protects our bodies.

Scientists have known about so-called “suppressive soils” for decades. In 1931, a Canadian scientist named A.W. Henry discovered the spores of the common root rot, a fungus that strikes wheat crops, in a range of soil samples. But try as he might, he could almost never get the spores to grow.

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Source:  Carl Zimmer, The New York Times, June 16, 2016


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