Mites or PH issues?

View attachment 1937023

I personally think it might have been PH issues from not getting enough run off from my coco, but it is similar to some spider mite damage i saw over on the 600W club.

The problem surfaced while the plants were stretching after I started 12/12, and since I have been feeding them properly, the problem has not gotten any worse. If it is spider mites, why have they not colonized my whole grow area?

spots from mite damage would be much smaller. Mites are easily seen with a scope, just look at the backside of the damaged leaf but again this doesn't look like mite damage to me.

Thats not mites.
Wouldnt like to say what it is but bite marks to big for mites imo

Lucky you it's not mites. The acctual damage would be smaller than the appearant burning that we are looking at.. And mite damage only gets worse. If you never treated for mites and the problem isn't getting worse then it wasn't mites. Just. He k under the leaves for needle sized black dots. That what mites look like.

That's good to hear, thanks! I have been inspecting the leaves as well and found no sign of mites, so i guess that settles that.

Do ya think the spots could be from not using enough CaMg, or the early shift in PH? I use canna coco nutrients with 1/2 tap 1/2 RO water, adding Camg up to about 200ppm (Hanna meter, so .4EC)

more info would be good bro i might be able to help

skinitti666 said:

more info would be good bro i might be able to help

Click to expand...

maybe you can help me , i have a parrot needs a home lol
hows it going man =)

lmao whats going on with ya bro shit if u was near id take it u know i have the home for it lol

Clonex said:

maybe you can help me , i have a parrot needs a home lol
hows it going man =)

Click to expand...

I don't have much experience, however it looks like you have blight/other "diesease" issues. The white I tinge I can see on the plant doesn't look like trich formation to me either, however I could be wrong. For your sake - I'd love to be.


You only focused in on one leave, which doesn't help much - however I'm sure you didn't want to be redundant in your picture posting. It appears you have this issue on nearly all your plants, or at least the surrounding ones. This leads me further to beleive it is blight, or something similar. (Even if your using the same reservoir for all the plants. Every plant doesn't respond to nutrients the exact same way.) What blight is, is a fungal infection. Just like any other fungus/spore/anything that causes an infection, an anerobic enviroment will allow it to spread very quickly, even before you see the full effects. (Ie, mold can spread and start growing throughout your whole house before you visablly start seeing it.)

If you look at the very top of your middle blade on that leaf, you can see how the rings are starting to get darker - to me that's the last sign it's funal. Since it's your grow room, I'd look up blight and other common plant fungal infections. Also, check out your grow room. Temps, humidity... is their stagnant air? Think about it like a body of water, just because there is a river going in and one going out - not all lakes/ponds actively move on the surface. Some do though.

Just my 2 cents. In my limited experience I've seen way too many people quick to judge with all these "nute deficencies", etc. Especially if your usuing half tap water... theres a LOT of minerals in that.

My room temps range from 60F to 75F. I am growing chocolope in coco coir, fed by drip system. I have3 oscillating fans 3 fixed fans, and a 449cfm exhaust, with an active intake for the room. I am using 2 400W CMH lights in a 2x4 room.

I just checked for signs of fungal infections, and you were right I got a bad case of powdery mildew....

Now to find that thread on powdery mildew I saw once before /cry

PeyoteReligion said:

Lucky you it's not mites. The acctual damage would be smaller than the appearant burning that we are looking at.. And mite damage only gets worse. If you never treated for mites and the problem isn't getting worse then it wasn't mites. Just. He k under the leaves for needle sized black dots. That what mites look like.

Click to expand...

That is almost unintelligable.

If there were a mite infestation causing his problems, the issues he had wouldn't be "smaller" per say - I'm not going to say you were wrong, but you kind of just spewed some text without giving him any information at all.

Even with mites, you could still have the yellow, spotting and similar issues to what he is experiencing - however it would not be that so widespread, it could more condensed. We know it's note mites given the fact you can see his plants are otherwise healthy and he doesn't notice webbing with his naked eye. A mite infestation that is going to cause any noticable leaf degradation/cell death is going to be loaded with webbing and thousands upon thousands of mites. However with mites, they are going to kill the plant, unlike the plants in this picture - which I think have a fungal infection and otherwise look totally healthy.


Also, all mites aren't black. Don't go telling people that. In fact, of the 5 most common "spider" mites in the USA, only one (may) appear black/olivey - thats the spruce mite. Plus you NEVER know where your going to pick mites up from. Your ornamental plants, local grass mites, local tree mites. They come in different sizes, colors, etc. The best way to see if you have bugs of any kind in your garden is to take a clipping or a some soil and take black and white paper. Shake the clipping on both and spread some soil on both. If you get something, drop it in some alcohol and look at it through a loupe or put it between two slides and through a scope. I did this for more than 10 years.

Bargar said:

My room temps range from 60F to 75F. I am growing chocolope in coco coir, fed by drip system. I have3 oscillating fans 3 fixed fans, and a 449cfm exhaust, with an active intake for the room. I am using 2 400W CMH lights in a 2x4 room.

I just checked for signs of fungal infections, and you were right I got a bad case of powdery mildew....

Now to find that thread on powdery mildew I saw once before /cry

Click to expand...

No humidity reading? Not that I'm all to intelligent on optimal room temperatures. Like I said, growing I'm new to - biology no. I did biological research for 10 years.

Anyways... to me the fungal stuff was evident, but it also doesn't look too bad to me my friend. It sounds like your room is finely setup! Can you switch around some of the fan's to get more air twoards the plants, maybe air under them as well? Also like I said, think of it like a body of water (which typically has dead spots)... you don't want those. Make sure the bad air gets to your exhaust. The best thing IMO is to dry everything out and don't go too wild trying to nuke things. However when you do harvest, if your room will be empty, give it a little clean down maybe.

Also, whats your good air comming in like? If you have more issues in the future maybe consider a fillter on the in-end too. Commercial (veggie) growers HAVE to do it. You have no choice when your pulling in "nasty" outdoor air to feed hundreds of thousands of dollars of plants.