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They're starting with trees that have survived somehow. It's hard to know if those trees survived due to fungus resistance or beetle resistance or just plain lu
by mark-r 9y ago
They're starting with trees that have survived somehow. It's hard to know if those trees survived due to fungus resistance or beetle resistance or just plain luck.
- eesmith 9y agoWe know their offspring are (sometimes) resistant to the fungus. From the article: > When the tiny elms reach 1 inch in diameter, the injections begin—every single sapling gets a shot of the two strains of DED. “That is the moment of truth,” says Marks. “We can tell in a couple of weeks whether they will be disease resistant. Since they have a higher success rate than elm trees in the wild, we can infer that their parent trees were likely resistant to the fungus.