Newly Registered
Posts: 1
Joined: Fri Apr 27, 2018 2:05 am

White spots on tomato stems

One of our tomato plants has been getting these weird white spots on the stems. Anyone have an idea what this is and if/how I should treat it? Picture attached. Any help is appreciated!
Tomato spots
Tomato spots

User avatar
Posts: 27807
Joined: Thu May 01, 2008 11:21 pm
Location: Zone 6, NJ (3/M)4/E ~ 10/M

Re: White spots on tomato stems

Looks like powdery mildew to me. If so, you will need to use a fungicide. Another possibility is that you sprayed with something and it is attracting mold.

If the black tubing is irrigation, make sure it’s not spraying up st the foliage.

Once the infection is under control, use a mild preventive like milk spray.
Learning never ends because we can share what we've learned. And in sharing our collective experiences, we gain deeper understanding of what we learned.

Return to “TOMATO FORUM”