I've had pretty good luck with tomatoes, particularly my Cherokee Purple heirlooms, during this beastly summer because they're naturally shaded by a 65-year-old American Elm tree. But even these shaded and watered tomatoes have now finally succumbed to spider mites, blight, and wooly aphids.
I harvested some of the larger green tomatoes that were surrounded by spider mites' webs, then cut out all the most diseased branches and left a few small green tomatoes on the now almost-naked vines.
I also cut back (by about a third) the two green zebras and one sugar sweetie I grew from seed that never set fruit in hopes they'll produce this Fall. Two (green) Black Krims are still hanging onto fairly healthy vines, and I can't wait to compare their taste to the Cherokee Purples!
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black krim
Not that I'm counting--ahem--but it looks like today will be Austin's 38th day of triple-digit heat this year.