Help Requested-Not a Clue What This Is !

[Waira]

Hi Stick'! This one is in the hoopy, right?...You might be onto something with a root issue,...maybe! LOL! The tub containers have pretty flush bottoms, so even though there're drainage holes, the weight of everything might be pressing those holes firmly to the ground, inhibiting draining; are there holes drilled on the sides at the base? If not, experiment and drill a couple, and see if water starts seeping out, or if the soil is really saturated... So, you've also found some necrotic spots away from edges, in more central parts of the leaf? Now, that definitely smacks of something fungal,... but as X says, it's not a full red alert situation, even if 1/3 of the leaves are showing pretty modest symptoms... Stick, what about other mentioned fungicides, any of those on hand? Neem is okay, but it's no panacea.... if you do some tip snipping, remember to dip blades in alcohol after every cut; give it try on a leaf or two, and see how it responds...

 

[StickMan]

what was the weather like previous to the photo? say the last 5 days...did it rain like hell and cloudy ...then bright sun? If so it could be mild burn from the sun, but that plant is to big for any small issue like this especially if its in a good TLO...

Hey Cres, I'm growing in a hoop house. Well ventilated. Only watering at first light.

We did have those conditions outside though and it played hell on my all my tomato plants.

Thanks for stoppin by.

 

[cres]

maybe then it could be a little tip burn from the sun...

 

[StickMan]

maybe then it could be a little tip burn from the sun...

Most of the damage showed up over night, as I found the first very minimal signs last night, just before dark, and then this morning 'boom'!

 

[StickMan]

Hi Stick'! This one is in the hoopy, right?...You might be onto something with a root issue,...maybe! LOL! The tub containers have pretty flush bottoms, so even though there're drainage holes, the weight of everything might be pressing those holes firmly to the ground, inhibiting draining; are there holes drilled on the sides at the base? If not, experiment and drill a couple, and see if water starts seeping out, or if the soil is really saturated.

Waira, yes in hoopy. Holes are drilled in the side at the base, just like plastic commercial containers. In fact, I added additional holes a couple of days ago. No water came out, as I was expecting might happen.

Stick, what about other mentioned fungicides, any of those on hand? Neem is okay, but it's no panacea....

None of the other mentioned fungicides as of yet, but I will get what I need before night fall. I believe this has moved beyond the use of Neem, so didn't even bother.

So, you've also found some necrotic spots away from edges, in more central parts of the leaf?

No, all spots are still on far-most outer edges of leaf fingers, but some(not many) are more in the middle of outer edge. I hope that makes sense.

if you do some tip snipping, remember to dip blades in alcohol after every cut; give it try on a leaf or two, and see how it responds...

Did snip and yes I always dip, but never assume right. I was constantly getting bitten in the ass when I was a construction foreman, and would assume that a journeyman knew what they were doing, just because they said "yea I know how to do that" NOT!

Stay tuned to this station for further developments.....

 

[StickMan]

Early p.m. Update

Just re-examined plant in question, approximately 5 hours later from a.m. post, and finding that the issue had spread.

Well, it's still spreading, or at least making itself known on other tips. I know I did not miss these new spots, as some of them have shown up on tips of leaves that I removed the necrosis from this morning. Not the same tips, but neighbor fingers of the same leaves.

Why just the one plant out of 20+ in the same growing medium and environment? Not necessarily a question, but more of an WTF.

 

[JM]

classic potassium deficiency...

now the question is why? I assume you did your best to insure uniform mixes and all...

heres the thing tho...
potassium is the locomotive in a plant... it transports all the nutrient around and delivers them... and calcium is kinda the opposite.. it gets used to build strong cell walls... I'd foliar feed with some molasses and epsom salts (1/2 tsp / gallon of molasses and 1 tsp / gallon of epsom) and some type of potassium source... for fast response coverage... and meantime add some more potassium to that plant... and makes sure you didnt kill microbes or set them dormant with too much rain or mopisture... I might even re-innoculate with whatever your bacterial; / fungals are. in the soil.,, going back to pick up more details...

ALL dieases we see show up (bud rot etc etc) are actually a result of a plant that is unhealthy... if it were truly healthy it wouldnt have susceptibility as truly healthy plants deveolop very strong oils that protect them from being penetrated by fungal stuff...

exapmle: my sweet potatoes:



you can see the fungus growing all over it... but that plant isnt affected at all.. and you can see how shiny the leaves are... this picture was taken at dusk....

 

[JM]

Reading back through... I'd almost definetly say (without beinbg able to heft your container) that you have a wet soil condition... whioh is becoming root rot now... and sending the plant into
Proteolysis ( http://en.wikipedia.org/wiki/Proteolysis ) instead of the direction its supposed to bne going (photosynthesizing into proteins)



So... the best thing yum can do is try to dry out the soil by not watering.. adding air holes / drain holes... etc.. meantime.. the best help you can give it is some foliar feeds so it has a food source until it can (maybe) correct its situation... too wet prevents enough air from getting between the soil particles for the microbes to breathe... when they die... they stop producing nutrients.. which is why you have potassium deficincieny.

 

[A4]

AfN. Where every day I read is an advanced class in horticulture.

 

[JM]

AFN.. where everday I'm forced to further my education in horticulture so I might teach others.. :roflcry:

Good stuff eh? :smokebuds: