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[Sticky] How to Get Rid of Spider Mites on a Cannabis Plant

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im_sparky
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Caryophyllene
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Here is my Non-toxic Mite Treatment:
https://percysgrowroom.com/forum/bugs-pests/non-toxic-mite-treatment/#post-90591

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artmann
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Caryophyllene
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 I had a bad infestation of spider mites. They were in my houseplants upstairs too. Tens of thousands of them. Maybe more.

But my mother plant had none.

Why? I used a sticky substance called Tangle Trap. It looks like rubber cement. I smeared it on the table legs of my mother set up. The legs are only 4" tall but it was enough. I recommend the sticky stuff. There are different brands. I make yellow sticky cards for fungus gnats too. Physical barriers can work.

 

I guess if you have pots on the floor it wouldn't work.

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Chickenlizard
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Geraniol
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If I find any and the plant is small enough or you got a big bucket. Dunk the whole plant in your spider mite solution. Turn the plant upside and dunk away.  Then using gloves rub your hand and fingers all over the plants stems and leaves.  Then dunk in fresh water. I do this method just using dish soap and veggie oil. This way all kill the adults kill most of the young and eggs.  Remember I'm pretty sure there life cycle is 3 days just like fleas.  

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Denizen
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Terpinolene
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I've had decent success using DE (diatomaceous earth) for Spider Mites. It's a fine, clay-like powder that's made from tiny dead organisms called Diatoms. On a microscopic level it's really sharp and jagged and it gets inside the cracks of the Mite's exoskeleton and fucks them up, drying them out and killing them. Contains plenty of Silica and stuff as well, so it's apparently beneficial as a soil additive as well.

You do have to be a little careful on younger plants as I've found it can dry them out as it's so powdery. It's great for spreading around an area/tent when you've had an infestation and want to be sure. Just another thing that's worth having in the arsenal!

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im_sparky
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Caryophyllene
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@denizen Diatomacious earth can be really great stuff. However, and throw this out there for anyone who may not know, it is a very serious danger to your lungs should you breath it so wear a good mask. It also becomes ineffective for pests if it dries out, and of course, if it dries out it can become airborne again. Given the fans used in a grow space, I don’t use this indoors, but love it for outdoor use.

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BubbleHok
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@im_sparky hey mate, just so we are sharing the correct info, as far as being dangerous for your lungs you are 100% correct, even food grade DE can cause issues if not handled correctly, however DE is rendered ineffective when it becomes WET, you really want it to be dry for best effects Smile Hope that didn't come across snarky or anything just wanted to point that out in case you were unsure Smile

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im_sparky
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Caryophyllene
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@bubblehok SOOOooo glad you caught this! You are 100% correct and this is simply an editing mistake on my part that I had not even realized I typed, so I appreciate you pointing it out. I certainly do not want to put out wrong info.  It would be nice if we could edit posts — meant to say I am not sure if it is still effective for pests once it dries out. You always diplomatic — not at all snarky, mate!

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BubbleHok
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@im_sparky sweet bro I'm glad it didn't came across like I was being a know it all dick hahahaha. I think there is an editing window from memory, you have 8 minutes or something like that to edit the post and after that only mods and admins can change it. So yes all good, I actually use it from time to time in coco if I get a real bad gnat problem and it works wonders but always have fans off and a mask just incase I get a bit overzealous with the application method hahahaha, and I usually leave it for a day or so after applying so it can work it's magic...can be tough in coco when you need to keep it moist though lol. Recently I have been using the hot shots dunks and they work brilliantly to keep the tent gnat free, wouldn't work for spider mites though. I use the Ed Rosenthal herbal spray if I have mites crop up but I'm such a stickler for keeping bugs out of the grow room I will shower before I go near the tents if I have been in the gardens outside lol. If I could airlock with hazmat suits I probably would 🤣 spider mites suck hahaha.

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im_sparky
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Caryophyllene
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@bubblehok I recently picked up some dunks to have on hand — just in case!  I will look into the Rosenthal spray.  I have used strong tea in the past, and am interested in the KNF approach to this, too.  Thanks, mate!

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Linalool
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I’ve been watching my crop & can say I haven’t seen a mite in ages.

Seeing nothing bar predators witch is awesome didn’t take them long.

they do bread at twice the speed of mites.

i used a mix of bottled Phytoseiulus persimilis & the sachets that contained amblyseius californicus  

I don’t know if I can say who I got them from but I definitely would recommend them as i have used there other predators for gnats & they definitely do the job.

did order a top up but looking at them I don’t think I need them the predators have done the job already.

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