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High plains disease (wheat)

Area of impact: Leaf

Description: Causes severe stunting yellowing and a mosaic pattern on leaves. As the disease advances marginal reddening and scalding occurs.

Pathogen involved: Virus

Timing/Conditions: Spread by the wheat curl mite; a round cream-colored wingless insect that depends on wind for movement.

Contributing factors: Proximity to corn barley, foxtail and other grasses that can harbor the mite.

Management practices: Plant resistant varieties. Plant winter wheat late and spring wheat early when mites are less active. Control volunteer grasses that may host the mite or disease.

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