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Within four to six weeks of transplanting strawberries in fall 2012, many growers in Virginia began noticing some loss of crop stand and plants exhibiting yellowing along the leaf margins of several younger leaves, which in some plants progressed to marginal necrosis. On-site diagnosis based on visual symptoms was difficult and several possibilities such as high salt levels in soil, low and irregular distribution of soil moisture, imbalance of soil pH, and boron micronutrient deficiency were discussed. Analysis of 58 samples indicated 42 samples (72%) were infected with Strawberry mottle virus (SMoV) and Strawberry mild yellow edge virus (SMYEV), 10 samples (17%) were infected with SMYEV, and 6 samples (10%) tested negative for both viruses.
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October 25, 2017