What's killing my plants?

[Socrates]

Here's a picture. Any ideas?

Some background: grown in soil (Fox Farm Ocean Forst + Happy Frog) with organic nutes from GH. Grown under LEDs in a smallish and rather crowded cabinet. Temps are normal. I've had some pest problems (mites and/or thrips) but have been using neem, spinosad, and safer soap to combat them. The problem seems to be affecting nearby clones as well. Any thoughts would be really appreciated. Let me know if you need any other info.

 

[JAY LENWEED]

It"s hard to tell without pics of the plant, but if the leaves started to die after you spayed pesticides I'd say the leaves looked like to much pesticide choked the plant and some mold looks like its growing on your leaves. Good luck !

 

[Big Brotha P]

Funky looking stuff.

Nutrient burn.?

 

[rixxy24]

Hi i have this on most plants and i had to get "nil Nat" formerly" tan lin" or vice versa. Its for those little flies that last eggs in soil and the larve nibble the roots. I noticed, after using, my lower fans especially crisped up like yours. My humidity is way low also (maybe not helping)

Sent by a naked baked elf called tapatalk 2

 

[Socrates]

Thanks all. I just crumbled up a few mosquito dunks to see if it's a problem with fungus gnats / root aphids. I think I may have a few different problems, because while these are crisping at the ends, a lot of the smaller bottom leaves have browned and started to fall off but aren't dried out at all. I doubt it is nute burn, as it's fairly hard to burn them this badly in organics and I never feed full-strength.

 

[legalizeDK]

try uploading pics of the whole plant. I doubt that its gnats

 

[TribalSeeds]

Thats what Safer 3-1 does to my plants. Did you also spray the clones?

 

[vukman]

Damn Socrates..I wish I knew what to tell you brother but I've never seen anything like that before...

Just want to wish you all the best of luck in dealing with what ever it is!!!!

 

[joe fresh]

Here's a picture. Any ideas?

View Image

Some background: grown in soil (Fox Farm Ocean Forst + Happy Frog) with organic nutes from GH. Grown under LEDs in a smallish and rather crowded cabinet. Temps are normal. I've had some pest problems (mites and/or thrips) but have been using neem, spinosad, and safer soap to combat them. The problem seems to be affecting nearby clones as well. Any thoughts would be really appreciated. Let me know if you need any other info.

i see thrip damage..looks lke an infestation....thrips carry disease, virus, and infection from plant to plant....

2 steps...bumb the room wit some drdoom or something of the like, then spray plants with a fungicide to garantee the stop of any pathogens...make sure spray contains no oil, and spray when lights are off

 

[the gnome]

I agree with joe, the leaf on the right looks like thrips symptoms.
with that amount of damage you should be able to see them swarming around when you mess with the plants.
if its thrips spinosad kills em quick,
in 1 application for me

also, what did you do with the 2 dunks?
Ive had probs possibly a few years ago with them and putting too much into my water rez

 

[Socrates]

Thanks for the replies, all! I don't think there is a really serious infestation of thrips, I don't see them on the leaves and I sprayed with spinosad several times. However, it's definitely possible that the spraying (which I did with lights on) is causing the other problems. I will hold off on that for a while and see what happens.

With regard to the dunks, I just crumbled them up on top of the soil. That was only 2 days ago, so it's not the cause of the problems.

I can't bomb until this round is finished, so I'm just going to have to hope they survive for another few weeks. Any suggestions for a fungicide?

 

[Arthritis_sucks]

Gotta hit us with more pics bro, like whole plant shots, but from what ya posted its thripe damage an visible mites on the leaves. The necrotic crisp is from burn when sprayin pesticides with lights on combined with low health from possible disease being spread by thripes. Spray after 30 mins of lights going out an not right after as for the first 15 mins the plants are transpiring alot of moisture when lights go off for the first 15-20 mins. here is what i use for fungicide......Zero tolerance first then water foliar followed 2 days later, but if its bad i hit them the following week with the Safer copper soap, also followed by a plain water foliar 2 days later.

 

[Arthritis_sucks]

The arsenal......


and if that dont work i break out the sulfer burner.....last resort....Organic methods of pesticide/fungicide always first.

 

[the gnome]

Thanks for the replies, all! I don't think there is a really serious infestation of thrips, I don't see them on the leaves and I sprayed with spinosad several times. However, it's definitely possible that the spraying (which I did with lights on) is causing the other problems. I will hold off on that for a while and see what happens.

With regard to the dunks, I just crumbled them up on top of the soil. That was only 2 days ago, so it's not the cause of the problems.

I can't bomb until this round is finished, so I'm just going to have to hope they survive for another few weeks. Any suggestions for a fungicide?

well then, thats 2 things scrtched off the list.
but if your using 2 dunks in one pot is quite a bit,
1/4 dunk is what is suppose to do it have you scoped out the leaves? thrips are very tiny, thye look like little black dots.

get some volck oil, very low on the toxin scale
kills a whole list of bugs from spidermites to whitefly
plus its an ovacide
and i just ran into some PM for the 1st time and Volck oil is also a fungicide that does PM and rusts.
i sprayed some on the lower leaves affected.
knocked it right down and hasn't come back 5 days later where it was sprayed

 

[jacksprout]

monterary garden spinosad work like a charm for thrips for me

 

[indoor/outdoor]

HEY SOCRATES ARE YOU USING SOIL MEDIA OR A HYDROPONIC MEDIA? IF YOU ARE GROWING IN SOIL ALL THAT SPRAYING PESTICIDES HAS KILLED ALL THE MICROBES IN YOUR SOIL AND YOUR SOIL IS DEAD.YOU CAN TRANSPLANT BUT BE SHURE TO PUT A NEW TOP LAYER OF SOIL WHEN YOU DO,OR IF YOU HAPPEN TO NOT PLANT ALMOST TO THE TOP OF YOUR CONTAINER JUST ADD A LAYER OF NEW SOIL ON TOP OF YOUR EXISTING CONTAINER.

 

[indoor/outdoor]

I FOUND THAT IN A LIVING SOIL MIX YOU NEED TO COVER YOUR SOIL WITH SOMETHING BEFORE YOU SPRAY SAY A PESTICIDE (ORGANIC OR NOT)

 

[Arthritis_sucks]

the black dots are eggs or larve and the flying ones are the adults if im correct.

 

[Socrates]

Thanks all for the support.

With regard to the dunks, I used 1/4 per pot for each of 8 pots.

I just looked in again and it seems that the spider mite problem is a lot worse than I thought. I am thinking about just using a No-Pest strip in there to try and kill everything moving, even though it's a little closer to harvest than I would like. This grow is basically screwed anyway, I just need to get the space uncontaminated.

God damned insects. What a bummer.

 

[Yesca73]

I just discovered thrips in my garden . My leaves look like yours. I just got a loope 30x and 60x. I was able to see the thrip larva on the top side of the lower leaves which they seem to attack first. larva are very small and need a loope to see. also I can see alot of black dots which is their poop. I also put some blue sticky traps and caught a few adults within 30minutes. They look similar to fungus nats .
I just got some Monteray insect spray and will apply tomorrow when lights go off. You have to spray at lights off because the bacteria in the spray will not be effective in the light .