So here's the deal. I have 4 plants going in an indoor grow. 2 Super Iced Grape Fruit and 2 Norther High lights. The Super Iced Grape Fruit look as healthy as can be: But there there's the Norther High Lights... It looks like something has taken bites out of them.. these seem too big to be spider mites? I almost want to suspect that cat, but there's no way he's getting into the grow room to do that... Or maybe it's a nute problem? Or is it possible it's related to the strain since it's only the NL affected and the SIGF is fine? If it were some kind of pest, it wouldnt target only one strain would it? Any help would be appreciated. Thanks!
It could be a lot of things dude. There is information missing from your post that would aid in giving you advice. What kind of medium is it in? Do you know your PH? What are you feeding it? How old is it? When did you water last? What kind of water are you using? Do you notice how dark your leaves are? I am almost positive that you do not have pests (yet).. those look like a nute burn to me. One plant was affected because different plants desire/require different levels of nutrition. What is too hot for one may be just right for another. If you throw up some more info I could give you some more info as well. But from what I can see without any extra info. You got nute burn. And you should just flush with clean ph'd water. You could have nute burn for a bunch of reasons thats why I was asking for more info. If your PH is off on your water you could be preventing your plant from uptaking certain nutes. Good luck dude, and let me know if you have questions... I'll try and answer as best I can.
Hi, Thanks for your quick reply and sorry for my lack of information. I will try my best to answer all your questions. Medium: Miracle Grow Organic (I know I know, people hate it, but it was free) mixed with probably 40% perlite. pH: I do not know my pH currently, though I've tested it many times in the past because of suspected issues and it's always come in around 6.5. Feeding: I've yet to feed it anything. Age: Sprouted on August 20th. So it's 22 days old Watered last: 48 hours ago Kind of Water: Tap water left to sit out for about 8 hours (we have some of the best tap water in the country) Leaves Darkness: Leaves don't seem any lighter or darker than previous grows, aside from some slight brownig/yellowing on some tiips and sides Thank you again for your time and help! Let me know if you need any more info Also, this happened over night.. another leaf tip gone: Could that also be caused by the fan being too strong / too close? I did notice that I accidentally set it to it's highest setting and it was blowing the plants around with quite a bit of force.
Miracle grow comes with fertilizer mixed into it. It might be too strong for that one strain. You might need to do a flush, but in the miracle grow that may cause more problems. (excessive water, or nutes or both) I personally do not use miracle grow because it is/has been known to burn and kill young plants. Do you know that N-P-K of your mix? Do you have a link to a product page so I could see what it is? PH is really a big deal because if your PH is off by even 1, then your plant will begin locking things out and not being able to uptake certain nutrients. This changes based on your PH. I check my PH every 4 days (some do it more some do it less). I would recommend buying a PH pen of some kind. I spent 80 on mine and its been years of good use for me. Considering its 22 days old and it didn't die in the miracle grow, this leads me to believe it may survive in the miracle grow. Also its important to note that its not killing your plant YET. Are you planning on replanting before flowering? What medium are you going to transplant into? Since you haven't started feeding them, what plant food have you decided on? The problem with soil that has food already in it (that you didn't add yourself or that you didn't control 100%, like the compost teas, or the bat guano etc..) is that if it ends up being too much for a certain strain you can't just take the food out of the soil so it doesn't burn the plant. A lot of people would say to flush it, but while its in the miracle grow that might do more damage than good. I am not a organic farmer though, so I won't go into that.. lol To check if you do have pests you are going to need some sort of magnification. Get a loupe or something like that and examine your plants for eggs, larvae, or any signs of pests. I don't think its pests, though I would check anyway to be certain.
Here's a link to the product page of my soil: http://www.scotts.ca/smg/goprod/miracle-gro-organic-choice-garden-soil/prod10190070 The soil is 0.10 - 0.05 - 0.10 I do have a pH tester and I will test it when I get home from work. I kinda just disregarded pH because every time I ever thought pH was an issue, it wasn't.. But really, it's not going to hurt to test it again. I do plan on potting up to 5gal bucket before flowering.. I had planned to use the same soil because I have a bunch of it that I have acquired for free. I've done another grow with this same soil and it wasn't an issue.. Though I don't know what the strain was then as it was bagseed.. Maybe this Northern Lights might be able to tough through it as it matures? And to make things worse.. I plan to use Miracle Grow plant food. I know that's also not ideal, but again I acquired a bunch for free.. and it has worked with a previous grow. If we can come to the conclusion that it's the medium that's the problem, I'd be fine with that and try to work through it. I just want to eliminate all other possibilities. I've checked under magnification and saw no bugs or eggs.. So there doesn't seem to be any pests.. I was just curious as there was big chunks taken out of the leaves out of no where... Maybe it's nute burn, which weakened the plant tips, mixed with the fan being on too high, which blew the dead portions of the leaves off? What do you think? Again, I appreciate all your help!
Yes something is eating your plants. I would check the undersides of your leaves for pests and egg sacks. Good luck!
Its always a good idea to check your PH at every watering. Make sure to check the run off. As for the fan blowing the tips.. I was literally going to say that but I have burned plants tips before and those things never fell off.. it looks like something touched it?? (you mentioned a pet cat) Unless the wind from the fan you are talking about is way overkill.. lol That soil is too weak to burn the plants so you are okay with that. You also mentioned that you have grown before in this... hmm.. And you found no signs of pests? EDIT: I am not sure how this would matter but the soil in the description says not to use this soil in pots or containers.
The fan was deff overkill.. It was on full, only a foot or so away from the plants.. I must have upped it's speed by accident. I see no way that the cat could have gotten in there, unless the GF has been going in without my knowledge and leaving it open to allow access to the cat. I found no signs of pests at all... Funny thing tho.. like two days into the grow I found a dead hornet in one of the trays.. no idea how it got there as this is an indoor closet grow.. not sure if that's related in any way.. I have not seen any since. Oh wow.. I did not see that warning about not using in pots... You'd think I would have read that on the bag.. I wonder why it advises against that and I wonder what affect that's having.. hmmm
Its a humdiity issue. This happens when humidity is too low. Have seen it on avacado trees and other plants.
Oh, well that would be a better issue than pests. The humidity is sitting at 30% right now with lights on. But who knows how much lower it was when the fan was blasting full speed. I really hope that's the case, cause that's easily corrected. Thank!
The fan explains it imo. I keep an avacado tree in my bathroom. Its got a similar leaf from hot days and low humidity. Could be wrong but doubt it. Paul might be onto somethin
Thanks for your input, could you please explain what about the plant is showing said issues? is it a deficiency? thanks!
OK I have grown cannabis in miracle grow. I used both the soil and their fertilizers. They do not add calcium or magnesium to anything because Scotts is a weed killer company. Yes u can grow weed/cannabis but there are things u need to know. The reason I say calcium/magnesium issues is this. Miracle grow is a low ph fertilizer. If you check your run off you are probably at 5.5 up to 6. Adding dolomite lime helps but too much calcium restricts magnesium uptake so you have to compensate with Epsom salt. Your leaves show calcium drift. The discoloration on edges. The leaves are showing magnesium the curling of edges. Some say heat causes leaf curl. My room is 77.8 degrees. I have same leaf curl showing on 2 leaves on my Red Magoo x Tan Wax plant in veg. He Red Magoo graft is magnesium hungry, typical of a hybrid leaning towards sativa dominant side. Indica dominant hybrids typically are calcium Dependant.. If u are growing both types you should get both a calcium supplement and a magnesium supplement. Most just use calmag and it clears things up. Sometimes Epsom salt works... If you recognize the leaf curling up early, it won't start praying...this praying is a clear early warning. As it gets worse your leaves show damage...
I'll water with epsom salts added next water (the gf has some) and see what that does. unfortunately i dont have anything around for calcium so ill pick something up if i have to