Publishing 12 times a year. ISSN 0006-3568.
Railways distribute the majority of stored wheat in the United States, from local rail-loading elevators such as the one shown here to larger regional elevators and ultimately to sites for processing or export. Stored grain offers a unique environment for insect pests and pathogens, including pathogens that produce mycotoxins. These unwanted passengers can move with wheat by rail among regions separated by thousands of kilometers, potentially spreading new problems such as pesticide-resistant subpopulations or quarantined species. In an article in this issue, John F. Hernandez Nopsa and his colleagues use network models to evaluate the structure of stored grain transport systems in the United States and Queensland, Australia. They identify locations that are key for sampling and mitigating movement of insect pests, pathogens, and mycotoxins. Photograph: John F. Hernandez Nopsa.
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