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curly top

noun, Plant Pathology
a disease of plants, especially beets, characterized by puckered or cupped leaves and stunting or distortion, caused by a virus, Ruga verrucosans.
Origin of curly top
1900-05, Americanism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for curly top
  • Resistance to curly top viruses through virus induced gene silencing.
  • The weed harbors insect pests that transmit curly top virus, which affects many important vegetable crops.
  • And they're working on new sugar beets that resist one or both of those fungal diseases-along with curly top virus.
  • Zucchini yellow mosaic, curly top yellow, and silver leaf have become problems in the past few years.

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