Please help me to figure out what this is?

[Tdh101jr]

Ok so this is what i have going on with my favorite plant out the group, curious as to what it could be? Magnesium or potas def? Since the otheres would start from top to bottom. Also just found out still have some fungus gnat larva in soil could that be it? Ive treated with neem oil and some dawn soap but what is another faster way to kill them all at once?

 

[Deadhead91]

What nutes do you use and what is your ph?

 

[Mr.furley]

Tdh101jr, fungus gnats larvae can cause root problems in turn showing your Leaf problem and before correcting a deficiency I'd tackle the problem you know you have.

I have used hydrogen peroxide diluted in water during a water only day, sprayed 2 days before and after that watering with neem oil and placed about 1 inch of perlite for top dressing to stop mine. Sorry I don't remember the dilution ratio to water off hand but it was a really low amount of ho2.
do you have sticky cards?

 

[Tdh101jr]

Thanks all for the feedback i have them looking pretty good now and ive been doing neem oil treatment 1x week is there any better suggestions for getting rid of these pest and ive narrowed it down to fungus gnats or white springtails either or i dont want any bugs munching down my babies!

 

[Dutchman1]

Put half an inch to an inch of sand on the surface of your plants. Fungus Gnats hate it, cuts em up.Also dont overwater, thats how fungus gnats get going. Monterey Spinosad works well also https://www.amazon.com/Monterey-Gar...D=51v%2BIdfVRUL&preST=_SY300_QL70_&dpSrc=srch

 

[Deadhead91]

I use captain jacks dead bug brew works well and from what I've read it's harmless

 

[Dutchman1]

Sand is pretty cheap Deadhead, ha. Works great and its pretty harmless to.

 

[Deadhead91]

$10 at homedepot and dead bug brew can be used for just about any pest too
https://www.homedepot.com/p/Bonide-32-oz-Ready-to-Use-Captain-Jacks-Dead-Bug-Brew-2506/203564356

 

[Potted]

Sand a light coating on top works well 2$

 

[Tdh101jr]

Ok ill try that or the perlite with my neem or captain jacks thanks so much and sorry to ignore your earlier questions dead i use mg nuits bc all can get around me till make more orders but ph my water every time out anything in and test the runoff so ik its not my ph or nuits for sure believe its pest fucking with my roots it just gets a little frustrating i clean the heck out that grow space 1x weekly and there still pest how does this happen with brand new bags of soil about to just look into hydroponics soiless medium ways to grow!

 

[Dutchman1]

It actually takes quite an infestation of Black Fungus Gnats to hurt your plant roots. A few here or there arent going to hurt. You need to be seeing dozens flying around to be a significant problem to the health of the plant from the larval stage.. Over-watering is the number one cause of infestation of Gnats.

 

[Deadhead91]

What kind of soil do you use, some brands have bugs nvm just saw it hahaha but the question is it garden soil or potting soil?

 

[Tdh101jr]

Thanks for the feedback guys ive bought new soil since and transplanted to bigger pots but even when had the infestation it was never dozens of anything at once i was pobably just doing sumthing wrong. But you all have helped a bunch and i certainly appreciate all the advice!