Spider Mites - First Time :(

sf_frankie

Well-Known Member
In really bad cases of spider mites (during veg or early flowering) we also used to add a solution made by soaking cigarettes in water overnight. The nicotine concoction was used as one quarter of the water portion of the before mentioned mixture. Nowadays people seem to frown on that addition. It did seem to work wonders through.
Would be cheaper to just buy some rolling tobacco. I've used it as a soil drench to kill fungus gnats and plan on washing my outdoor soil with it before I reuse it just in case.
 

MustGro

Well-Known Member
I like an aerosol pyrethrin spray. Most have Technical PBO added but some don't. Pyrethrin is made from the chrysanthemum plant. The technical pbo is a synergist and is possibly carcinogenic. Walmart carries a Raid Max brand up here in Canada.
I trim off lower fans that are hard to spray under and some of the worst foliage.
I get great results with 2 sprays a week to 10 days apart.
 

MICHI-CAN

Well-Known Member
What size pots are you in? Or hydro, in ground? Methods are getting a bit out of hand. Easier ways. What am I working with? TY.
 

JimmiP

Well-Known Member
Would be cheaper to just buy some rolling tobacco. I've used it as a soil drench to kill fungus gnats and plan on washing my outdoor soil with it before I reuse it just in case.
Just be careful with it outside. It is supposed to be harmful to bees. Not that bees like female cannabis but if it gets on nearby plants that bees like it can kill them too.

Also yeah it would be cheaper with rolling tobacco. We just used super cheap cigarettes though. I used it at least three different times for a buddies grows. Thankfully I have only needed it once when I was given a few clones, in the middle of winter, that came with mites.
 

MICHI-CAN

Well-Known Member
I’m using coco in 16l fabric pots mate
My suggestion is wand type feather duster, in the morning, to collect webs and mites. Sterilize it immediately or seal in plastic and dispose of. Spray really well with as much water pressure as you see tolerated. Light dusting of diatomaceous earth on soil surface. Organic, safe, cheap and effective.

Lemon trees in Mi are prone to them here. No big deal.
 

Moflow

Well-Known Member
I’m based in the UK, I’ll have to try and source. If I do source them, how does this work? Just release them into the grow area? Do you then have to try and remove them once the job is done?
Get the biggest pack, 21 quid.

Or go nuclear...... lol

24 quid
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Hi Guys

I’m half way through my second week into flower and noticed spider mites, pretty bad in some places where they have started to create webs etc etc

does anybody have any proven methods suggestions to get rid of them completely/manage them or have I caught them too late :(

Any help would be deeply appreciated.

Chwers
You have to be very careful what you spray on plant.ladybugs do not work don't even try it there will be ladybugs dying all the time its stupid.i had spider mites week 6 of flowering and I bought green cleaner.i sprayed before lights went off and tried to avoid hitting bud.i know its hard to avoid hitting bud but that's fine.make sure to dilute by directions.you will kill them and eggs too.it killed all of mine.good luck
 

steve1989

Member
Hi guys, I thought I had got rid of the mites but I’ve just noticed some webbing on some of the buds. Absolutely gutted!
I’ve got 20 days left until harvest.
Is there anything I can do at this stage? If not what can I do?

Appreciate any advice!!

Thanks
steve
 

hotrodharley

Well-Known Member

steve1989

Member
First, and this sounds strange, but,,, vacuum the plant from top to bottom. This will get rid of a large number of the nymphs and adults. Make sure to remove all of the webbing.

Second (and I have and do use this), mix a half gallon 70% isopropyl alcohol with a half gallon water. Add 2 tsp potassium bicarbonate and around ¼-½tsp castile soap.
You can also still mix in spinosad, at this point, if you like. However most people will not continue using the spinosad through the rest of the flowering cycle.

Spray every other day for the first week, covering the plant top to bottom. Make sure you get it everywhere. Spray the walls, floor, ceiling, equipment, pots and everything else in the area. The second week spray every third day.
Keep monitoring the plants using magnification and check everywhere.

This mix can be sprayed all the way through flowering. The alcohol kills on contact and then quickly evaporates away, the soap (and spinosad) leave some residual effects, and the potassium bicarbonate will help prevent and or kill fungal infections.
The soap and potassium bicarbonate can be used in greater amounts during vegetative growth. You can also add silica for foliar applications with this.
Good luck friend!
hi mate, I have discovered some webbing and mites and have 20 days left. Could this solution still be used?
 

sf_frankie

Well-Known Member
Hi guys, I thought I had got rid of the mites but I’ve just noticed some webbing on some of the buds. Absolutely gutted!
I’ve got 20 days left until harvest.
Is there anything I can do at this stage? If not what can I do?

Appreciate any advice!!

Thanks
steve
You can wash the buds right after you chop. Dip them in a bucket of water and then dry/cure. Might get rid of some of the mites.
 

rmax

Well-Known Member
No damned ladybugs for spider mites. Buy predator mites. Ladybugs eat aphids and that’s about it.
You're on! Let's do link wars.

I'll go first:

"Ladybugs love to munch on spider mites, so much so that they know how to track them down. They are attracted to the smell of these creatures, as well as to the leaf damage typical of a spider mite infestation."

- Aug 9, 2020


Your turn.
 

hotrodharley

Well-Known Member
You're on! Let's do link wars.

I'll go first:

"Ladybugs love to munch on spider mites, so much so that they know how to track them down. They are attracted to the smell of these creatures, as well as to the leaf damage typical of a spider mite infestation."

- Aug 9, 2020


Your turn.
“In outdoor gardens, however, ladybugs tend to fly away to their preferred food source so getting them to establish on the plants can be a little tricky. A sugar water solution can be sprayed on the ladybugs to “stick” their wings together for a few days.”

Post away, Jacko. I’ve used both. Turn predator mites loose. Period. No Pepsi shower to keep their fucking wings down.
 
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