Young leaf deformations. Help identify please

[Fresh Start]

Some history of what is going on:
The plants have been treated with pesticides including; Avid, Forbid, and pyrethin for broad mites.

We have been visually inspecting the leaves via a x30 magnifying lens and have found no sign of the mites- although with this new leaf damage we are suspecting a few things:

a. That the broad mites are still there in microscopic form and are still causing damage.
b. The plants are experiencing residual affects of the pesticides
c. The plants could have a fungal infection.

We have a premium growing environment in which humidity is kept at 55% temps are 72-75. Before transplanting we have done a bleaching to the floors and walls and also gone through a fallow period of one month to ensure the eradication of lingering pests.

Please help us diagnose the issue here. If there are any questions I will be here to update and such.

 

[Hash Zeppelin]

^sorry bro I cant see your pictures

 

[Fresh Start]

Thank You hash for letting me know. Fixed the problem (public album now)

I'm still looking at the undersides of these leaves with my x30 lens here. I can't spot any mites but I'm feeling like another avid spray could not hurt at this point. I really need this harvest to work out.

I'll try to post more pics soon

 

[Fresh Start]

Some more speculation:
I did say that the problem is persistent in the younger leaves, although there is also lighter chlorosis (aka light green color) on the bigger fan leaves in between the veins- not sure if we can see that in the pics.

The issue is definitely more prominent on the young leaves making me look towards immobile elements. If I had to guess which one I would say either iron or magnesium deficiencies are at play here. I have a batch of hum-tea going and I think that will help some in a few days when it is ready. Also, I can foliar spray a light dose of micro elements onto the leaves to try and alleviate the problem some.

Please give me some feedback because this shit makes me want to pull my hair out.

 

[DemonPigeon]

Looks more chemical than biological to me... But what it actually is...

 

[Fresh Start]

I have foliar fed them with cal-mag+ (also contains micro elements) from Botanicare and I hope to see results in the morning. I'm going to comb through the nutrient profile I have been using and see if I can find some error in the ratio's between PBP grow, Karma, and cal-mag I have been using.

 

[FunkJungle]

Looks like burns from your chems. I've gotten very similar damage from spraying leaves with Forbid. It can last quite a while. Weeks or months even. I found that plants I dunked with warm water recovered much more quickly as I was able to wash some of it off.

 

[Fresh Start]

thanks for the lead on Forbid damage. Looking further into it, there are a few posts around the net about people experiencing very bad plant damage from using forbid. It seems to have a rough phytotoxicity (light burn)

This is a good topic to bring awareness to others about because the broad mite seems to be a bigger problem the more time goes on and I can see other people (through my third eye irie!) having these same issues.

I'll post more pics today and watch the progression.

 

[Fresh Start]

I dont have more pictures as of yet but I am happily reporting that the foliar spray of cal/mag plus has done what was needed to bring balance back to my plants. Amazing what nutritional science studying can do. So, basically there is a micro nutrient deficiency being displayed on the fan leaves (interveinal chlorosis= light green color) and this is happening because the plant is trying to relocate the micro elements to the younger parts of the plant which are suffering. After I have given them the needed dose of micro elements via hand sprayer the younger leaves have perked up quite remarkably. The interveinal chlorosis has halted and started to turn lusher green on the fan leaves over night. Very cool!

Now is the part where I find out why this has happened.
I'm currently using pure coco medium from roots organics- which come buffered out of the bag. I believe that the potassium levels in the coco and my levels of cal/mag plus in the initial dose of nutrients has locked out an element or two. In my findings it is showing calcium and/or magnesium and/or iron deficiencies.

I'll get some pictures to show the recovery. Also, I am not ruling out the possibility of Forbid being an antagonistic pesticide. There could also be light bleaching from HID light intensity. My AC's were dropping the temps a little to low in the evening..

Balance is difficult. Thanks for reviewing. Once again- any feedback is appreciated.
-Fresh