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hummingbird

Registered: 06/29/14
Posts: 2,134
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Quote:
LizardWizard said: gnats aren't a problem, their larvae are, they nibble at the roots and an infestation that's not kept in check could end up costing you 20%of your yield.
No problem. Just 20%. 
I've heard this number too. I've had gnat larva destroy clones before, like bore into the stem...fuckin gross. If the infestation gets bad in your room, they can cause problems for sure.
I haven't really seen gnats around since I started putting mealworm frass in my soil. They hate neem too. If your infested, BTI really helps( Gnatrol or mosquito bits/dunks).
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Failboat
Fuck Up
Registered: 02/01/18
Posts: 8,736
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Don't even get me started about gnats...
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Bph
Stranger



Registered: 10/11/18
Posts: 1,466
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Re: Cannabis Growers [Re: Failboat]
#27662246 - 02/17/22 07:32 AM (1 year, 11 months ago) |
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Actually I’d like to get someone started about gnats. I got a lot on the worm bin but it’s still too cold to move it outside. The wife wants it to live with my plants in the garage but I don’t want them to get in the tent. Do you guys think I could lay the neem oil or DE to my worm bin and get ride of them without hurting my worms?
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A.k.a
Stranger



Registered: 10/27/19
Posts: 16,782
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Re: Cannabis Growers [Re: Bph] 2
#27662296 - 02/17/22 08:38 AM (1 year, 11 months ago) |
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Sounds like a job for a cheesecloth covering over the bin.
TCO that shit about finding the earlier sample cracked me up. I do stuff like that too often.
Speaking of samples, Laos and a super early gorilla zkittles nug.

Just took a bong hit of the Laos, much nicer this time so far. There’s no racing heart edginess to it. It was still a tiny bit wet though so that might’ve muted things.
I was checking out c99 stuff last week and saw multiple claims it finished in 7 weeks 
Turns out it might be pretty close. This is not even six weeks in.

Definitely won’t be 7 but might be a legit 8 weeker.
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LAGM2020     
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LizardWizard
GnomeGrower



Registered: 01/07/15
Posts: 13,688
Loc: the parking lot
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Re: Cannabis Growers [Re: A.k.a]
#27662326 - 02/17/22 09:07 AM (1 year, 11 months ago) |
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BPH you need to get Athetha Coraria and cover it with a fine cloth as has been said. Release the drain bugs in there and they will be happy forever, dump some of the drain bugs around your drains and on top of your containers as well, they will establish themselves and keep the gnats in check in perpetuity. I'm not saying it's impossible to get out of hand when you use these, but it's highly unlikely, though if your worm bin has a lot it might be best to combine it with a watering with Steinernema Feltiae nematodes
Best of luck! Love that you're doing a worm bin.
Tell your wife the worm bin isn't hurt, she feels the same about her!
-------------------- The best things in life can be smelled on one's fingers.
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Bph
Stranger



Registered: 10/11/18
Posts: 1,466
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Re: Cannabis Growers [Re: Bph] 1
#27662412 - 02/17/22 10:09 AM (1 year, 11 months ago) |
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Bout to do some training. I’m really happy with how fast they are growing now but I don’t understand how I could still be showing signs of nutrient toxicity from just my soil mix I mean I’m almost at week 6 and haven’t amended with anything yet not even a damn tea or anything. My soil was A mix of black cow, Peat Moss, Wood mulch, perlite, sand, oyster shell, fish meal, earthworm castings and kelp meal. I’m going to just keep watering for now but I wish I could get them looking happier.

Yeah I like the cheese cloth idea. I’ll try that before I freeze my worms. I got one of those ultra violet light traps says it’ll be here today so maybe that will help
Edit. I also ordered some drain bugs.
Edited by Bph (02/17/22 11:21 AM)
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Bph
Stranger



Registered: 10/11/18
Posts: 1,466
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Re: Cannabis Growers [Re: Bph]
#27662421 - 02/17/22 10:17 AM (1 year, 11 months ago) |
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Man I really don’t know what to do here. My gut is telling me to leave these fucking plants alone and don’t touch them. But my brain is telling me to cut a bunch of these fan leaves off and tie this motherfucker back to the side of the pot as tight as I can. This is nothing like tomatoes you can actually work with a tomato and the one photo I grew was more like a tomato there’s space in between growth so you can move things around. But these things are just stacked up with less than an inch between nodes or whatever it’s called. What should I do? I gotta go to work soon so I think I’m gonna put them back in the tent and leave them for now. But I have to deal with them soon. I got some binder clips and shit to tie them up with. Just not sure how to without breaking or cutting something.
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Enjoil



Registered: 10/29/20
Posts: 2,348
Last seen: 38 minutes, 53 seconds
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Re: Cannabis Growers [Re: Bph]
#27662467 - 02/17/22 11:01 AM (1 year, 11 months ago) |
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When you change the light cycle to 12/12 they should stretch out a little bit… but typically we like a short “internode” length..
I really train my plants a lot… I don’t let them just grow however they want, or they would go crazy and I would never be able to finish a grow.
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A.k.a
Stranger



Registered: 10/27/19
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Re: Cannabis Growers [Re: Enjoil]
#27662474 - 02/17/22 11:07 AM (1 year, 11 months ago) |
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They look pretty big to do any serious lst.
Autos seem to have thick super brittle branches compared to photos. I would probably just pull the branches down some to open it up.
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LAGM2020     
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Enjoil



Registered: 10/29/20
Posts: 2,348
Last seen: 38 minutes, 53 seconds
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Re: Cannabis Growers [Re: A.k.a]
#27662492 - 02/17/22 11:21 AM (1 year, 11 months ago) |
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Ohhh. My bad, I don’t know much about growing autos…
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the_chosen_one
On the Darkslide


Registered: 09/11/06
Posts: 2,882
Loc: 1984
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Re: Cannabis Growers [Re: Bph]
#27662505 - 02/17/22 11:30 AM (1 year, 11 months ago) |
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That's your gnat damage right there. Very high probability anyways. Larva chewing the roots. DE is good but kind of a pain. Trust me and the Bird on this one. BTI also known as mosquito dunks or bits. Natural and won't hurt your beneficials or you. It'll take about a week to kill the larva and break the chain.
-------------------- "Luck favors the observant." - Workman
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LizardWizard
GnomeGrower



Registered: 01/07/15
Posts: 13,688
Loc: the parking lot
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Re: Cannabis Growers [Re: openmind]
#27662527 - 02/17/22 11:39 AM (1 year, 11 months ago) |
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I'd say go with your gut and leave them alone for a while, and let this be a learning process, try to accept that.
Gnats should be dealt with and I don't find DE the best of solutions but others seem to like it so whatever works for you 
IME DE takes too long to work to combat any appreciable size of gnat infestation, and it's a bitch to work with if you don't bottom water. That's why I find adding topsoil inhabiting bugs (drain bugs and predatory soil mites) and beneficial nematodes a better option, and I doubt those critters like the DE themselves so it's a bit of a loss on both sides of the spectrum if you go truly organic.
I am thinking with your soil mix you might have simply overshot the amounts of each or parts of those amendments, since it is quite easy even in organic farming to overshoot the proper ratio's if you have little clue on how much to use for how much soil.
The first year I built my own soil I only had harsh tasting weed to show for it, and it took me 2 more years to figure out the right ratio's. Luckily I was also growing indoors on storebought soil so I wasn't entirely dependent on it but still it's a learning process especially if you go largely unguided like I did back then.
Buying a few good books on cannabis cultivation has been good to me in that regard; having a few trustworthy resources at your disposal at all times pays off big time, as well as putting in the effort to source and pay up for quality ingredients and biological soil life forms that build symbiotic relationships with cannabis, be it in insect, bacterial, or myco form, it's all good as long as it builds up that beneficial diversity. That's probably even more important than having enough of each of the amendment in there, having the soil life to break it all down and make it available to the roots, and defending it from detrimental organisms that also thrive in those conditions and on the media you use.
But I'm digressing. Ratio's. Check em!
-------------------- The best things in life can be smelled on one's fingers.
Edited by LizardWizard (02/17/22 11:43 AM)
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the_chosen_one
On the Darkslide


Registered: 09/11/06
Posts: 2,882
Loc: 1984
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Re: Cannabis Growers [Re: Bph]
#27662537 - 02/17/22 11:50 AM (1 year, 11 months ago) |
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Quote:
Bph said: My soil was A mix of black cow, Peat Moss, Wood mulch, perlite, sand, oyster shell, fish meal, earthworm castings and kelp meal. I’m going to just keep watering for now but I wish I could get them looking happier.
You have any wild fern growing around you? Your recipe is good, but might lack Gibberellins. You can add to the soil, make a tea or ferment ferns for use.
-------------------- "Luck favors the observant." - Workman
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joze



Registered: 11/10/20
Posts: 928
Loc: PNW
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Hey all. I'm not a cannabis grower yet, just lurking, but I want to chime in on the pest talk. I keep a lot of houseplants and I also work for an agricultural science company, we deal with a lot of pest issues for our clients. I don't know about gnats specifically, but for things like thrips and aphids and mites, spinosad is absolutely the best organic pesticide. In the USA you can buy it under the label Captain Jack's Dead Bug Brew. You spray it on and keep the plant out of sunlight for a few hours and it absorbs in. Within 48 hours your plant should be pest free.
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  Important Links. Be kind to others.
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A.k.a
Stranger



Registered: 10/27/19
Posts: 16,782
Loc: Gaming the system
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Re: Cannabis Growers [Re: joze] 1
#27662551 - 02/17/22 12:07 PM (1 year, 11 months ago) |
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Ok so a couple weeks ago we were talking about training/lollipopping and canopy depth stuff.
I just came across this picture which is exactly what I was talking about where I don’t get why people grow the plant so big and strip most of it off. Seems like a huge waste of time to me.
Is there any benefit to this??
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LAGM2020     
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the_chosen_one
On the Darkslide


Registered: 09/11/06
Posts: 2,882
Loc: 1984
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Re: Cannabis Growers [Re: A.k.a] 1
#27662556 - 02/17/22 12:15 PM (1 year, 11 months ago) |
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Quote:
A.k.a said: Ok so a couple weeks ago we were talking about training/lollipopping and canopy depth stuff.
I just came across this picture which is exactly what I was talking about where I don’t get why people grow the plant so big and strip most of it off. Seems like a huge waste of time to me.
Is there any benefit to this??

Yes. Air flow on the down low. Easier to manage and keep pest free. The most important thing is the plant is brought to full maturity and can produce better than a plant flipped lower and earlier. A lot of our local farms use this approach, but as you can see you need head room.
-------------------- "Luck favors the observant." - Workman
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Dr PinkShroom
Stranger



Registered: 08/08/20
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It’s not really lost time if the flower room is always full and running, just wasted time in veg, which for me is caused by holding clones for longer then necessary waiting for the flower room to open up, but getting a good root mass isn’t a bad thing only real concern is head room but having bigger and less plants also has its upsides.
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Hobbit GDF
Deadhead


Registered: 02/14/19
Posts: 3,385
Loc: Terrapin station
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I went bigger plants this time 2-3 months veg. I like it.
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hummingbird

Registered: 06/29/14
Posts: 2,134
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Re: Cannabis Growers [Re: Bph] 2
#27662597 - 02/17/22 12:55 PM (1 year, 11 months ago) |
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Quote:
Bph said: Actually I’d like to get someone started about gnats. I got a lot on the worm bin but it’s still too cold to move it outside. The wife wants it to live with my plants in the garage but I don’t want them to get in the tent. Do you guys think I could lay the neem oil or DE to my worm bin and get ride of them without hurting my worms?
Don't put DE in your worm bin, the moisture will probably make it ineffective. I could be wrong there, but DE needs to stay really dry to work well IME.
If you are going to use neem, I would find neem seed meal/cake instead of oil. Worms actually really like to eat neem cake too. It will deter the gnats from your bin if nothing else.
Using sticky traps for the adults helps get gnats under control faster. The yellow ones work great for gnats...they are kinda pricey though. I like to use pieces of yellow duct tape with something called tanglefoot sticky trap brushed on. I will make little flags with a bamboo stake piece or popsicle stick and put them in pots, or just stick pieces on the sides of my tent or pots. It's gross how fast they will fill up when you have an infestation...but also awesome because none of those gnats will lay more eggs in the soil.
BTI is just a type of bacillus bacteria that produces a protein crystal that the larva eat or come into contact with, and it makes them stop eating and die IIRC. It works about as well for gnat larvae as mosquito, which is really well. A couple applications over a week should knock them back to almost none.
I've been trying to add things with chitin in them to my soil to get microbes that break it down. Since the larvae have lots chitin in their skin, those microbes should eat the larvae too...or at least produce enzymes that make their life really difficult. Adding crab/shrimp meal is a good source of chitin, so is frass. Since I started adding frass and some of the dead pupae and beetles from my mealworm colony to my soil, I haven't really seen a gnat.
/end gnat rant
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the_chosen_one
On the Darkslide


Registered: 09/11/06
Posts: 2,882
Loc: 1984
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Death from the sky.
-------------------- "Luck favors the observant." - Workman
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