Hydroponics DWC aquafarm plant is growing slowly during flower

[Crazylids]

Hi guys. I have a modified aquafarm as dwc and thing have been gooing well but now i am at day 37 and got some problems. The leaves got some brown/Yellow spots about two weeks ago, and are pretty dark green too.
It has gotten worse and the plant seems to have slowed down bud production.
Yesterday while changing res water i found a few larvae on the water, tho I don't see any gnats flying around.
I am pretty sure i gave her a bit too much nutes, but have lowered them to a half now.
Do you think the spots on the leaves are related to the overfeed or maybe a Root problem? The spots started showing from the bottom of the plant and are now on the top leaves as well.
Considering the budding is really slow or none in the last two weeks what do you think? Also atm She is not taking any nutes as the ppm don't decrease or increase.
Btw there are no Spider mites ir any thing on the leaves.

I'll leave some photos so you can see.
Cheers and thanks in advance.

 

[Mr. Krip]

Definitely looks like pests and not nute or PH related. Were you able to get pics of the larvae?

 

[Crazylids]

Definitely looks like pests and not nute or PH related. Were you able to get pics of the larvae?

Hi sorry for the time i took to reply but now there are even more larvae and i got a picture of them.

 

[Mr. Krip]

Hi sorry for the time i took to reply but now there are even more larvae and i got a picture of them.

OK...It looks like you have Thrips. They suck! Literally!

Those little buggers scrape the leaves & flowers and suck on the juices of the plant, which is what causes those white or yellow "speckles" on the leaves.

They're a little bit of a PITA to deal with since the adults are on the leaves and the larvae is in the res, so you need to treat BOTH areas to break the mating cycle.

I'd get some sticky traps to catch anything flying around and, as you replace them, the number of insects trapped will give you an indication of how well your treatments are working and when you've got them under control.

Spray the leaves with some Safers Soap or other ORGANIC pesticide to take care of the adults and treat the res with something like an AzaMax to kill the larvae.

 

[Crazylids]

OK...It looks like you have Thrips. They suck! Literally!

Those little buggers scrape the leaves & flowers and suck on the juices of the plant, which is what causes those white or yellow "speckles" on the leaves.

They're a little bit of a PITA to deal with since the adults are on the leaves and the larvae is in the res, so you need to treat BOTH areas to break the mating cycle.

I'd get some sticky traps to catch anything flying around and, as you replace them, the number of insects trapped will give you an indication of how well your treatments are working and when you've got them under control.

Spray the leaves with some Safers Soap or other ORGANIC pesticide to take care of the adults and treat the res with something like an AzaMax to kill the larvae.

Thanks for your so in depth anwser! I have seen some photos and the leaves really are like mine. I only never tought of thrips because i never saw anything alive on the leaves pra flying around. But im sure you are right.

Ill follow your advice. Thank you so much.

 

[Mr. Krip]

Thanks for your so in depth anwser! I have seen some photos and the leaves really are like mine. I only never tought of thrips because i never saw anything alive on the leaves pra flying around. But im sure you are right.

Ill follow your advice. Thank you so much.

Do a picture search for "thrip larvae" and you can match the pictures to the larvae you see. You'll be able to tell better than I can from the pics you posted, but when you do your search, you'll find pics like these:

Any of those look familiar?

 

[Crazylids]

Do a picture search for "thrip larvae" and you can match the pictures to the larvae you see. You'll be able to tell better than I can from the pics you posted, but when you do your search, you'll find pics like these:

Any of those look familiar?

Yup They do! And the leaves look exactly the same as mine. I just never saw anything flying or on the leaves so i was mislead.