Tomato Stalks turning dark

Mr. Greenjeans · July 8, 2013

Hello Tomatovillians!

A friends garden I saw today had the bottom six inches or so of main stalk of her tomato plants turning a dark color, almost black (or a VERY dark green). Sorry, no pictures. She's been away for several days, & can't really say when it started or if it's progressing. The rest of each plant look very normal & healthy. She planted early for southern Connecticut & her plants are about 4' high now. NOTHING on the leaves at all.

A stroll through the interwebs suggests this could be caused by Alternaria stem canker, bacterial canker and both early and late blight.

But I don't see lesions or anything like what is described ....
http://homeguides.sfgate.com/stems-t...nts-25580.html

Is this likely to spread up the plant?

Thanks!

ikegass33 · July 9, 2013

I had a tomato plant with black cankers making it's way up the main stem, and a copper fungicide purchased from Home Depot did the trick. You might consider that.

July 8, 2013	#1
Mr. Greenjeans Tomatovillian™ Join Date: Jan 2013 Location: Connecticut Posts: 2	Tomato Stalks turning dark Hello Tomatovillians! A friends garden I saw today had the bottom six inches or so of main stalk of her tomato plants turning a dark color, almost black (or a VERY dark green). Sorry, no pictures. She's been away for several days, & can't really say when it started or if it's progressing. The rest of each plant look very normal & healthy. She planted early for southern Connecticut & her plants are about 4' high now. NOTHING on the leaves at all. A stroll through the interwebs suggests this could be caused by Alternaria stem canker, bacterial canker and both early and late blight. But I don't see lesions or anything like what is described .... http://homeguides.sfgate.com/stems-t...nts-25580.html Is this likely to spread up the plant? Thanks!

July 9, 2013	#2
ikegass33 Tomatovillian™ Join Date: Mar 2013 Location: texas Posts: 12	I had a tomato plant with black cankers making it's way up the main stem, and a copper fungicide purchased from Home Depot did the trick. You might consider that.