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Hi, total noob first time grower with some questions and a problem or two.

Darkmatter

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Hi, I'm growing for the first time and have run into some problems, plus I have some general questions.

First, in case it matters, I'm growing 5 Alive and Star Killer from seeds. I admittedly, started late, partly due to it being a cold spring, and being busy dealing with the pandemic, so I expect that I'll end up with smaller plants.

All that being said, I've run into a problem or 2.

First problem, my plants got hit with Spider Mites.
:(
I first used a home solution I found online of mostly bottled spring water, a bit of gentle soap, and a bit of vegetable oil. I now only can see dark specs on the bottoms of 1 of my plants, and I destroyed all the webbing to see if any new webbing is made today to know if the mites are alive or dead. I later went out and bought some "BugBgoneEco by Ortho, which it says is a medicated soap. I don't know how often I can spray for mites without hurting my plants. Second, I don't know how long it takes for the white speckled spots on the leaves to vanish.

2nd, I have a couple yellowing leaves and 1 that looks worse than that, and I wasn't sure if it was from over watering or the mites. I have a general "soil moisture" meter but I don't know what these strains prefer.
Right now they are in pots, but I'll have to plant them outdoors soon, but for now, since they are small, I didn't know if a small grow light for 24h light would be beneficial or harmful to them at this stage.
I also don't know if I should prune the one leaf that looks a lot worse for ware then the others.

Lastly, but probably most critically, I didn't know what sort of nutrients I should be putting in the soil (plane potting soil) at their current growth stage.

Some are growing faster than others, and I'm not entirely sure why, but these pots are a size up from the ones I started with. One issue I am having is a few of them seem to be just barely strong enough for their height, and other then supporting them with a stick, I wasn't sure what else I could do.

Hopefully it will let me upload a coupe photos. Sorry the one isn't very good, but you'll get the idea.

[Edit: The bad, blurry leaf in the 2nd photo fell off at the stem, so that answers that question.]

Edit2: Oh, I forgot to ask, I should I be watering these guys (while they're in a pot) in a sink, bottom up, or is watering them from the top fine?]

Thanks!
 

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Bubbletrouble

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1st off the white specks will not go away. Thats leaf damage from the mites. As small as those plants are you can spray them down with water especially under the leaves where the mites are. Spray they down good and the water pressure will knock them off your plants. Also the mixture you used should of had alcohol in it. I use 50% alcohol and 50% water with a little dish soap. The alcohol kills them on contact. Do not use that method once they start to flower. The alcohol will screw up the trichs.
As for nutrients. What kind of soil are you using. Does it have Ferts already in it? At this stage they need Nitrogen.
And they need all the light they can get. I notice they look like they are stretching trying to get more light. They need a slight breeze on them to build up the stalk strength.
When you water make sure your solution has been PHed where they can uptake nutrients properly.
Also water from the top untill you have runoff and then Do Not water again untill the soil is pretty much dry. They need oxygen,, if they stay wet constantly they will drown.
 

Oldbay

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Bubbletrouble is spot on, try and find some nutrients that are geared towards cannabis and right now they should be getting grow/nitrogen. Cannot overstate enough about letting them dry out between watering a, loving them to death with nutes and water is a mistake most of us made when we were getting started. I’ve been lucky to date with never having mites so I have nothing for you there
 

Darkmatter

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Thanks, the dirt is potting soil. The guide I got with the seeds said not to use fert for the first few weeks because of how fragile they are. I'll put a fan on them to help strengthen them up. I'll keep checking for mites, but I think the first spray got them all or almost all of them. I wiped down all their webbing and I've used a bright LED light to look for new webbing and I haven't seen any.

Thanks for the watering tip. I was both afraid to over water them, and to under water them. heh

I heard something called "bloodmeal" is good for cannabis plants, but I'm not sure if I can buy that around where I live or not. If I have to go with a more "generic" nitrogen boosting fert or solution, do you guys have any recommendations?

As for light, I've kept them inside under the grow light for the past 4 days because I didn't want them to get reinfected with mites right away. I've since sprayed down everything in the area, so hopefully a lot of mites died this week. :) They're now back out in the sun during the day instead of under the grow light, but since you said they need as much light as possible I'll bring them in and under the grow light at night.

[Edit for things I don't think of... lol]

What PH level do I want, and do I need to keep using bottled spring water, and is bottled spring water the right PH level? If not, or if it varies by brand, how much is a "thingy" that will tell me the PH of the water, and if it's off, how do I change it?

Regarding my grow light, how close should the plants be to it? It isn't a super strong one, it's just a flourecent tube type grow light for indoor plants. I just am using it for extra light at night, and when I had the plants indoors due to the Mites.

Thanks!
 
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2broke2smoke

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Seeds have everything they need for the first couple weeks in the shell. As for mites, how you approach that is prolly one of the most controversial subjects in the mj 🌎. About 15 years ago I had some cali mites gifted to me on some cuts that I could not get rid of, I tried neem oil, Avid, and Floramite. Nothing seemed to be dying. I took my pocket microscope out and saw the mites drinking the floramite in mugs and flipping me off. I was in danger of losing all my coveted strains when I discovered Forbid 4F. Forbid completely eradicated my problem. The downside of forbid is you can only use it during veg. We tested plants in the Michigan State Tissue sample lab, (one of my best friends was an intern in the lab to the head chemist as a student) sprayed in veg and sprayed in flower. No residual from the veg , but there was residual with the plants sprayed in flower.

So what to do if your plants are on 🌼? 1tbls non antibiotic dish soap 3 tbls janitorial strength ammonia to 1 gallon water. They will die on contact spray every 3 days up to harvest no worries. The Forbid is not a contact killer and usually takes about 14 days to kill everything:D

2b2s
 
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