A few GIEI bloggers and gardeners have commented on ‘Iron Lady’ F1 Hybrid released this year by Cornell University (in partnership with North Carolina State University), and sold through High Mowing Seeds. This cultivar is a big step forward in the battle against tomato diseases. It has resistance to late blight, Septoria leaf spot, Fusarium wilt, and Verticillium wilt, AND tolerance to early blight.
I grew four plants at the Home and Garden Information Center and one at home. It’s a determinate cultivar that makes vigorous top growth and sets fruit in tight clusters over a relatively long period. I did not keep track of planting and harvesting dates. The description claims 75 days to maturity (from transplanting). It seemed slow to ripen but produced nice firm, smooth fruits (4-6 ounces).
There was a lot of Septoria leaf spot in home gardens this year and ‘Iron Lady’ came through unscathed. We did have some minor early blight infection (see photo above) that did not affect growth, fruit cover, or yield.
Sure, there are tomatoes with better texture and flavor but this level of disease resistance is unmatched! Can’t wait to test the other hybrids coming out of this breeding program.