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I've identified Late Blight as infecting most of my 30 in-ground heirloom tomato vines. (I thought I was "immune" because I'd grown them from seed but in the one week I was gone it appeared like gangbusters.)
At this point, the vines are all about 4-6 ft. tall (staked) and about 1/4 to 1/3 of the lower leaves are brown and wrinkled, and the tomatoes on the lower branches display the characteristic brown lesions. At the top of the vines, the leaves appear healthy so far, and up there I have unblemished green tomatoes of various sizes (it's been a very cold wet summer so far and only my Stupice is red.)
I have Serenade at the ready to spray. My question is: should I try to save the vines by stripping off the damaged leaves/fruits and spraying the remainder? Or is it really kind of futile with this sort of progression? My vines are relatively close together, which has not been a problem in previous years, but then, this isn't a normal year. The blight must have blown in to my yard, and I don't want to infect other gardens.
I also have six varieties in EarthBoxes that were somewhat removed from my in-ground 'maters--they have only just begun to show the distorted and brown leaves. I plan to try to save them.
Or is this just closing the barn door a bit late? ;-(
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