herbicide damage?

[Nematode]

Does this look like herbicide damage? will they pull through?
Weekly mow n blo for all the neighbors.
I used some weed n feed 3 weeks ago first time in 5 years, never again.
Plants seem to do better when its cool and really suffer when its hot.

Garden is hydroponic so there should be no contamination issues with soil or fertilizer. My guess is it has to be airborne.
Hearts and potato leafs are really suffering, regular leafs a little less sungolds seem marginally affected.

Nematode

[RayR]

Do the symptoms only show on the tomato plants?
Deformed new growth can be caused by a Calcium deficiency too. A common problem with hydroponic growers.

[Mike723]

In respect to Ray's comment - what's the makeup of your nutrient solution? If you're using pure Ro and not dosing back some calmag (or a comparable ca/mg additive), you'll most definitely end up with a ca and/or mg def..

[Nematode]

Originally Posted by RayR

Do the symptoms only show on the tomato plants?
Deformed new growth can be caused by a Calcium deficiency too. A common problem with hydroponic growers.

Only on tomato. Maybe a slight effect on eggplant, first year with them so not sure what normal looks like.
Calcium is 180ppm feed ph is 6.0 drain ph is 6.4. A little high but still in the ok range as far as calcium.

[Nematode]

Originally Posted by Mike723

In respect to Ray's comment - what's the makeup of your nutrient solution? If you're using pure Ro and not dosing back some calmag (or a comparable ca/mg additive), you'll most definitely end up with a ca and/or mg def..

Nutrient is currently peters hydro special, yara calcinit, potassium sulfate, magnesium sulfate and some sea salt(200ppm sea90).
Last year used actual seawater without these issues, got tired of hauling it. Feed is ph6.0 drain is ph 6.4.
Calculated ec is 2.4 feed.

Ppm
N 180
P 50
K 350
Mg 60
Ca 180
Cl 150
Micros are whats in the mix copper is a little high and.zn is a little low
Zn 0.15
Cu 0.4

[HydroExplorer]

If you're not using RO water the calcium and magnesium in your water source is probably carbonate versions of calcium and magnesium (not plant accessible).

You either need to use RO (or distilled) water with CalMag or you need to add amino acids to turn the carbonates into chelated nutrients. So I'm told...

[Nematode]

I have grown for 4 years using municipal water, ro water might be ideal but is certainly not required. The required nutrients are added as soluble salts.

[HydroExplorer]

I'm saying that if you're seeing a calcium deficiency using municipal or well water then you need to either fix it with a foliar feed or add something to the res that breaks down calcium carbonate.

There's nothing wrong with growing in municipal water. I've done that for 4 years with some measure of success. You just need to add stuff to the res to chelate the carbonates or fix the deficiency with a foliar feed.

[digsdirt]

Does this look like herbicide damage? will they pull through?
Weekly mow n blo for all the neighbors.
I used some weed n feed 3 weeks ago first time in 5 years, never again.

Can't comment on any of the hydro aspects but otherwise, yes it does look like herbicide damage does and from your info it certainly could be a possibility.

If it is will they recover? If it was anything with 2-4D odds are slim but they look more like Imidacloprid or Clopyralid type damage in the pics and that has a fairly good chance of recovery.

Dave

[Mike723]

Originally Posted by Nematode

Nutrient is currently peters hydro special, yara calcinit, potassium sulfate, magnesium sulfate and some sea salt(200ppm sea90).
Last year used actual seawater without these issues, got tired of hauling it. Feed is ph6.0 drain is ph 6.4.
Calculated ec is 2.4 feed.

Ppm
N 180
P 50
K 350
Mg 60
Ca 180
Cl 150
Micros are whats in the mix copper is a little high and.zn is a little low
Zn 0.15
Cu 0.4

Your mix is close but K is slightly high.. Should be 100-200 ppm.. Excess K can lockout ca so just keep that in mind if a true ca def begins.. Your ph is on the high side; Ca is available from 5.8-5.0 approx.. Keep in mind that if your input is 6.0 and your run off is 6.4, then the actual ph of the internal res is more like 6.6-6.8.. When I was using Dutch buckets I would first give the pot a tip and test the res .. Then I'd tailor my solution to my desired ph.. With all that being said, I'm with Dave on the herbicide damage.. As there isn't any necrotic tissue or "rust" spots that commonly coincide a ca def.. (Not that I can see in the pic anyways lol)

[Mike723]

Originally Posted by HydroExplorer

I'm saying that if you're seeing a calcium deficiency using municipal or well water then you need to either fix it with a foliar feed or add something to the res that breaks down calcium carbonate.

There's nothing wrong with growing in municipal water. I've done that for 4 years with some measure of success. You just need to add stuff to the res to chelate the carbonates or fix the deficiency with a foliar feed.

That's not entirely true Hydro.. While some of the ca in tap is unavailable, a measure of it most surely is.. Of course water sources vary by geographical location, but a tap with an average ec of 0.3 (150 ppm on a .5 conversion) is surely sufficient.. I know this from personal experience.. I've grown hydroponically for the past 5 years with a 60/40 ro:tap dilution free from ca defs 90% of the time (No calmag added). Occasionally you'll get a cultivar with a larger appetite for ca/mg and that's when you'll notice a deficiency.. For the most part my 40% tap provides plenty of ca..

[Nematode]

Occasionally ill get a little iron chlorosis which is my "ph too high" indication. Need to get some acid to ph down the feed tank, havent yet seen a calcium deficiency problem.

Beside myself with this herbicide problem. Having a hard time believing the stuff can rise up out of the yard and damage the plants to this extent.

[sdambr]

Originally Posted by Nematode

Hearts and potato leafs are really suffering, regular leafs a little less sungolds seem marginally affected.

Nematode

I had herbicide damage on most of my plants, same as above. Sungold doing well now, RL also recovering, potato leafs and hearts struggling, just starting to look a little better. It's been 3 weeks.

[Nematode]

Originally Posted by sdambr

I had herbicide damage on most of my plants, same as above. Sungold doing well now, RL also recovering, potato leafs and hearts struggling, just starting to look a little better. It's been 3 weeks.

How is the fruit set on the different types?

[loulac]

It certainly looks like 2-4-D damage. It's highly likely a neighbor has sprayed his lawn without waiting for a complete absence of wind. I think the plants won't die but remain stunted and only produce few tomatoes if any.