Performance of Tomatoes (all Solanum lycopersicum unless noted) (Hybrids, Open Pollinated and Heirlooms) for Late Blight (LB) and Early Blight (EB). T. A. Zitter, Department of Plant Pathology Cornell -Update Jan, 2011. Cultivar Specifics and Ref. of LB/EB Genetic Comments Seed source Rx (year) resistance Fresh Market Reds Legend OP Det., rnd red, 14- Not tested locally; Reportedly Ph2 resistance will not 16oz; Territorial (dev. Dr. Baggett, tolerant for US8 provided resistance (9) OSU) (1) and US11; Ph2 for current isolates of only; EB res. LB like US-22. New Yorker OP Det., rnd red, 4-6 Not tested locally; Resistance Ph1 Ph1 gene will not oz, early season; (dev. NYSAES, gene provide resistance for Online Geneva, NY) current races of LB. West Virginia 63 OP Indet., rnd red, Not tested locally; Reported as Ph2 gene will not 6.5oz;Online (dev. Dr Gallegly, Ph2 gene provide resistance for WVU) (5) current races of LB. Defiant PhR Det., 6-8oz, Heterozygous Should perform well in Johnny’s (20@$5) Resistant for EB for Ph2 & Ph3; NE. Suited for vine- and LB, including Heterozygous ripe production. US22 (8) for EBR Mt. Merit Det., rnd red, mid Heterozygous Should perform well in to late season; Resistance for EB for LBR (Ph2 & NE; similar to other Bejo (Not and LB (8); Ph3); Hetero Mountain series available) EBR Heirlooms Aunt Ginny’s Purple Indet., pur/blk, Good resistance None reported Potato-leaf plant. beefsteak, 16oz; US17 (2002, 2006) Online (4) Aunt Ruby’s German Indet., gr. Moderate resistant None reported Green beefsteak, 8-18oz; US17 (2002, 2006) Online (4) Indet., bi-colored Good observations None reported beefsteak >16oz; US22 (2009) (10) Online Indet., maroon, Mod. res. US17 None reported beefsteak ,10- (2002, 2006); 12oz; Online mixed performance US22 (2009), (4,10) Black Plum Indet., mahogany Highly resistance None reported plum, 2 in. US17 (2002, 2006) elongated; Online (4) Indet., pink fruit, Moderate None reported Prolific potato-leaf oblate 1-2 lb.; resistance US17 plant. Johnny’s; Online, (2002, 2006) (4) Pruden’s Purple Indet., dk. pink, Moderate None reported Medium potato-leaf >16oz; Johnny’s resistance US17 (7) plant. Slava Indet., red, 2 in.; Some resistance None reported Potato leaf variety, Online reported US17 (3) Eastern European Stupice Indet., red, 2-3 in.; Some resistance None reported Potato leaf variety, Territorial (9) reported US17 (3) Eastern European. (AKA Mr. Indet., bi-color, 4- Observed good None reported Productive small Stripey) 6oz; Online tolerance US22, round fruits with (2009) (10) reddish-orange skin and stripes. 1

Saladette (large cherry), Plum Juliet, Plum cluster F1 Indet., 1 ½ -2 oz; Intermediate South Asia, Ph Larger sister variety of Johnny’s, #707 resistance for LB gene(s) likely ‘Santa’. (10@$3) (US17) and EB (2009) (3,7,8) Mountain Magic F1, Indet. 2oz size; Excellent with Heterozygous (dev. Dr Gardner, Large Cherry Bejo (2), Seedway exposure to US22 for Ph2 and NCSU). (100@$30); (2009); multiple Ph3; Johnny’s (10@$4); isolate resistance homozygous Nichols Garden US11, US17 (6,10) tolerant for EB Nursery (10@$3.65) Plum Regal F1, Plum Det.; Bejo; Excellent with Homozygous (dev. Dr Gardner, Seedway(2) exposure to US22 resistant Ph3; NCSU). (1000@$83) (2009); multiple Homozygous isolate resistance tolerant for EB US11, US17 (6,10) Small-fruited Grape, Cherry, Pear (assorted colors) Red Currant, OP Indet., 3/8-inch, Good resistance US None reported Vigorous growth and sweet (but slightly 17 (2002, 2006) many fruit. tart); Online (4,7) Red Pearl, Grape Indet., 1oz; in Intermediate None reported Compare to ‘Red clusters Johnny’s resistance for LB Grape’ F1, but larger 97G US22 (2009) (8) fruit.

Matt's Wild Cherry Indet., cherry, ½ Excellent None reported Rampant vines; Sm. Red Cherry He, S. in. borne in resistance US17 Probably Ph3; origin is lycopersicum var. clusters; Johnny’s, (2002, 2006); Hidalgo state in cerasiforme ID: 732 observed res. US22 eastern Mexico. (2009) (4,7,10) Yellow Currant, S. Indet., very small, Excellent tolerance None reported Regular leaf; fruit pimpinellifolium 1/2-inch almost US17(2002, 2006) borne in cluster of 6-8 translucent yellow (4,7) tomatoes. cherry; Online Yellow Pear, OP, He Indet., cluster; ¾ - 1 Excellent tolerance None reported Tall and vigorous vine oz; Johnny’s; 744 US17 (2002, 2006) with many fruit. (4) 1.) Baggett, J. R. 2001. http://extension.oregonstate.edu/news/story.php?S_No=312&storyType=garden 2.) Bejo Seed 2010. 3.) Dillon, M. 2005. Public breeding for organic agriculture. Screening for horizontal resistance to late blight in tomato. http://ofrf.org/funded/reports/dillon_04s20.pdf. 4.) Fry, W. E. 2002, 2006 (http://www.plantpath.cornell.edu/Fry/LB_Tools.html#heirloom). 5.) Gallegly, M. E. 1960. Resistance to the late blight fungus in tomato. Proc. Plant Science Seminar. Campbell Soup Co., Camden, NJ. 6.) Gardner, R. G. 2008. http://www.ces.ncsu.edu/fletcher/programs/tomato/releases/release-notices/release-Mountain- Magic.pdf; http://www.ces.ncsu.edu/fletcher/programs/tomato/releases/release-notices/release-Plum-Regal.pdf. 7.) Inglis, D., Gundersen, B., and Derie, M. 2001. Evaluation of tomato germplasm for resistance to late blight, 2000. Biological and Cultural Tests for Control of Plant Diseases 16:PT77. http://ipcm.wisc.edu/WCMNews/tabid/53/EntryId/875/Managing-Late-Blight-in-Tomatoes.aspx 8.) Johnny’s Selected Seeds. 2010. http://www.johnnyseeds.com/c-1-vegetables.aspx; personal communication. 9.) Territorial Seed Company. 2010. http://www.territorialseed.com/prod_detail_list/vegetable_seed. 10.) Zitter, T. A. 2009. Personal observations and correspondence.

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