Chastagner, Gary

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Tobacco rattle virus in peonies: a reference guide for cut flower and rootstock producers

Tobacco rattle virus is one of the most important viruses of peonies (Paeonia spp.). Although little is known about its long-term impact on plant vigor, both cut flower and rootstock producers should ...
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A Grower's Guide to the Most Common Diseases of Peony in the United States

Pests and disease can harm peony, but home gardeners and commercial growers can learn to familiarize and manage the most common pathogens here.
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Sooty Bark Disease Diagnostic Guide

This pub will walk you through how to correctly identify the diagnostic symptoms of sooty bark disease, a troubling, emerging pathogen spreading across Washington.
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