Help! This is a new one for me.

heirloomtomaguy · April 9, 2015

I think it is edema but not 100% sure. It is only on a couple of plants per 18 tray of seedlings. They are still indoors and i cant find any sign of infestation. The only bugs i see are a few random fungus gnat which are normal around here. What are your thoughts?

RayR · April 9, 2015

Wow! Sure does look like Edema, a very extreme case too.

heirloomtomaguy · April 9, 2015

Its weird to i only had to over water them once when i went to disneyland for only 2 days. I saw it last night and freaked out. Segregated all with signs just in case. It seemed to effect all the wild varieties the worst. It makes sense since they require much less water.

JamesL · April 9, 2015

Wow is right. Nothing other than edema springs to mind.
Good call on segregating them.

Gardeneer · April 9, 2015

Let me ask :

How many plants are you growing side by side ?
How many of them show this symptom ?

If this is the only one in the bunch, I would doubt that it is a case of EDEMA.

Gardeneer

heirloomtomaguy · April 9, 2015

I have 90 in this batch under this particular grow light. I have a fan on one end of the rack and a wall on the other most of the effected ones were against the wall will a few from each flat in between the fan and the wall. The ones directly in front of the fan have no signs of this on them but i assume it is because the fan dried out their soil faster but that is just a guess.

RayR · April 9, 2015

I had 2 out of a bunch in a tray last year that had some Edema. The humidity can get pretty high sometimes around plants that are real close together without good air flow.

Starlight · April 9, 2015

Looks like your plants need a tube of Clearasil acne medicine.

Your plants really have it bad. At least edema is not like a virus or a bacteria. Looks bad on the plant though.

Here's some ways to help prevent it.

http://www.ces.ncsu.edu/depts/pp/notes/oldnotes/gp3.htm

Poor plants,

I hope you can get it cleared up.

bower · April 9, 2015

What a timely post... I was potting up tomatoes today and found a couple of plants with the same wierd symptoms - not nearly as extreme as your picture but one of those ???? scary mysteries... better isolate these from the pack.

After reading the link on edema, it makes perfect sense... poor little tomatoes on a windowledge in an unheated room, just heated by the fluorescent light above em, except when the sun blazes for an hour. Pretty cold, and the dratted potting mix doesn't drain well, and yes, there are some fungus gnats about as well.

Luckily the 'isolation room' is actually a much warmer and even temperatured place.. so if it's just edema I guess they'll have a chance to start to grow normally...

April 9, 2015	#3
heirloomtomaguy Tomatovillian™ Join Date: May 2013 Location: glendora ca Posts: 2,560	Its weird to i only had to over water them once when i went to disneyland for only 2 days. I saw it last night and freaked out. Segregated all with signs just in case. It seemed to effect all the wild varieties the worst. It makes sense since they require much less water. __________________ “Enter by the narrow gate; for wide is the gate and broad is the way that leads to destruction, and there are many who go in by it. Because narrow is the gate and difficult is the way which leads to life, and there are few who find it."

April 9, 2015	#6
heirloomtomaguy Tomatovillian™ Join Date: May 2013 Location: glendora ca Posts: 2,560	I have 90 in this batch under this particular grow light. I have a fan on one end of the rack and a wall on the other most of the effected ones were against the wall will a few from each flat in between the fan and the wall. The ones directly in front of the fan have no signs of this on them but i assume it is because the fan dried out their soil faster but that is just a guess. __________________ “Enter by the narrow gate; for wide is the gate and broad is the way that leads to destruction, and there are many who go in by it. Because narrow is the gate and difficult is the way which leads to life, and there are few who find it."

April 9, 2015	#2
RayR Tomatovillian™ Join Date: Jun 2010 Location: Cheektowaga, NY Posts: 2,466	Wow! Sure does look like Edema, a very extreme case too.

April 9, 2015	#4
JamesL Tomatovillian™ Join Date: Nov 2011 Location: Long Island NY Posts: 1,992	Wow is right. Nothing other than edema springs to mind. Good call on segregating them.

April 9, 2015	#5
Gardeneer Tomatovillian™ Join Date: Feb 2015 Location: NC - zone 8a - heat zone 7 Posts: 4,918	Let me ask : How many plants are you growing side by side ? How many of them show this symptom ? If this is the only one in the bunch, I would doubt that it is a case of EDEMA. Gardeneer

April 9, 2015	#8
Starlight Tomatovillian™ Join Date: Jan 2015 Location: AL Posts: 1,993	Looks like your plants need a tube of Clearasil acne medicine. Your plants really have it bad. At least edema is not like a virus or a bacteria. Looks bad on the plant though. Here's some ways to help prevent it. http://www.ces.ncsu.edu/depts/pp/notes/oldnotes/gp3.htm Poor plants, I hope you can get it cleared up.

April 9, 2015	#9
bower Tomatovillian™ Join Date: Feb 2012 Location: Newfoundland, Canada Posts: 6,794	What a timely post... I was potting up tomatoes today and found a couple of plants with the same wierd symptoms - not nearly as extreme as your picture but one of those ???? scary mysteries... better isolate these from the pack. After reading the link on edema, it makes perfect sense... poor little tomatoes on a windowledge in an unheated room, just heated by the fluorescent light above em, except when the sun blazes for an hour. Pretty cold, and the dratted potting mix doesn't drain well, and yes, there are some fungus gnats about as well. Luckily the 'isolation room' is actually a much warmer and even temperatured place.. so if it's just edema I guess they'll have a chance to start to grow normally...