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Section 26.5.2: Maize Dwarf Mosaic Virus

Maize dwarf mosaic virus (MDMV) transmitted by the corn leaf aphid, Rhopalosiphum maidis

Time for concern: After June 15
Key characteristics: The MDMV system consists of a mosaic pattern of lighter and darker green streaks along the veinal and interveinal tissues. 

Management Option Guideline
Scouting/thresholds

Record the occurrence and severity of MDMV. No thresholds have been established.

Fresh Market Sweet Corn IPM Scouting Procedures

Resistant varieties Plant resistant varieties.
Site selection This disease primarily affects corn planted in the Hudson Valley or upstate New York. Work in the Hudson Valley indicates that fields should be planted early to avoid peak aphid flights and reduce the risk of infection.
Crop rotation,
Seed selection/treatment,
Postharvest, and
Sanitation
These are not currently viable management options.
Pesticides No pesticides are available to manage MDMV.