Mosaic Positive Results

The County of Imperial requires that all lettuce sold to be planted in Imperial County be tested for lettuce mosaic disease. In the ordinance the species and varieties of lettuce ( sativa L.) includes head, romaine, leaf, endive and chicory. While endive and chicory are included in the ordinance and are hosts of LMV, the disease is not seed-borne in either of them. They are not subject to testing.Imperial Valley Vegetables Growers Association is the designated coordinator for this testing.

All seed productions company should conclude a MOU with IVVGA prior to any testing. Once that MOU is in place, instructions for shipping seed for testing and the process will be provided. We appreciate the cooperation of the industry in this important requirement.

As of December 31, 2017, the following seed samples tested positive and cannot be sold or planted in Imperial County. One seed in a sample of 30,000 creates a positive result.

Company Variety Lot Number Result Year Central Valley CVX 47-M 210774-01 5/30,000 2012 Central Valley Seeds CVX 47-M 212774-02J 7/30,000 2012

Nunhems/Bayer Crop Regency 21749901001 5/30,000 2012 Science Vegetable Seeds Seminis Vegetable Grizzly 101711791/01-99 1/30,000 2012 Seeds Seminis Vegetable Grizzly 101711791/02 1/30,000 2012 Seeds Shamrock Seed MasterBlaster 300054-14093 HVY 100%* 2014 Company, Inc. Seminis Vegetable Bubba 102326293-2 2/30,000 2014 Seeds Tozer Seeds America Wigmore 5435992 1/30,000 2015 Lettuce Mosaic Virus Positive Results

Company Variety Lot Number Result Year Seminis Vegetable BraveHeart 102423815-1 1/30,000 2015 Seeds Shamrock Seed MasterBlaster 300054-15096 23/30,000 2015 Company, Inc. Gowan Seed Company T & T Marsala V103635 203/30,000 2015 Gowan Seed Company T & T Smeraldo L15041 2/30,000 2015

Shamrock Seed Serengeti 30765-15084 2/30,000 2015 Company, Inc. Shamrock Seed Mainman 300053-15095 9/30,000 2015 Company, Inc. Enza Zaden North Diamond 892300 4/30,000 2015 America Enza Zaden North Diamond 940188 5/30,000 2015 America Enza Zaden North Tellmark 892296 1/30,000 2015 America Enza Zaden North Diamond 2312016 7/30,000 2016 America Central Valley Seeds EXP-16 2154094-01R 1/30,000 2016 Central Valley Seeds CVX -16 215408-01J 1/30,000 2016

Central Valley Seeds CVX -16 215408-01J (a second 1/30,000 2016 lot sample) Shamrock Seed Serengeti 30765-15085 Med-Hvy 2/30,000 2016 Company, Inc Shamrock Seed Serengeti 30765-15085 Med-Hvy 2/30,000 2016 Company, Inc Lettuce Mosaic Virus Positive Results

Company Variety Lot Number Result Year Shamrock Seed Mojito 30384-16072 3/30,000 2017 Company, Inc Progeny Advanced Dover 569-61-61 2/30,000 2017 Genetics

End of List as of December 31, 2017