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mitchell68

Spidermite and Co² gassing

29 posts in this topic

As we all do when looking for solutions came across an American forum which had a guy dose his plants in Co² at 10,000ppm for 1 hr and it killed all mites. He says the plant gets stunted for a day but otherwise no harm.

 

Has anyone tried this before ? 

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sounds expensive 

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Yes ive done this on smallish plants inside a cardboard box, used acetic acid and bicarbonate of soda to make the co2.

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An out of date fire extinguisher off eBay would provide the co2 needed to bring the required ppm .

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I think if Co2 was as simple to buy in the UK as it is in other places, lots more folk would be using it. 

It's a good idea, and a clean way to kill bugs. 

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So would a bucket of dry ice in a tent do the job - i realise hard to figure out the ppm

 

 

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Only just noticed this and I really like the idea.

 

On 03/08/2019 at 1:58 PM, Bartyfartblast said:

sounds expensive 

 

Not hugely,and could be done for free-ish pretty simply with @HippyHair 's excellent idea or sugar,yeast and water in a bottle.

On 18/08/2019 at 9:05 AM, highgrower said:

So would a bucket of dry ice in a tent do the job - i realise hard to figure out the ppm

 

 

 

I think that would work pretty well,10,000 ppm is basically 1% of the air volume in your tent,so as long as you go over that job should be a goodun.

 

On 18/08/2019 at 8:27 AM, Michael Luchóg said:

I think if Co2 was as simple to buy in the UK as it is in other places, lots more folk would be using it. 

It's a good idea, and a clean way to kill bugs. 

 

 

I hear you ,dry ice is much easier to buy elsewhere ,but any brew shop will sell you a refillable co2 bottle for around the same price as a bottle of Harkers.

 

 

Having just discovered the borg bastards on 4 plants of mine I'm keen to try this by releasing some  Co2 from a canister into a large plastic storage tub containing my plants and then topping up for an hour or so with bicarb and acid.I think I'll hit them  with Harkers afterwards too to make sure any eggs  get killed as well.

 

@mitchell68 thanks for the idea

 

:hippy:

Gumbo.

 

 

 

Edited by Gumbo
typo
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@Gumbo as far as i am aware Harkers wont kill the eggs - thats why you have to spray twice about 4 days apart.  So if your doing the CO2 route just do it twice 4 days apart.

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Yes I think you may be right on that,thanks :yep:

 

Gumbo.

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How did it go with the co2? 

 

I have found my mother tent infested with mites and I inky have access to dry ice and co2. 

 

Did it work? 

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I can't recommend the spidermite predators enough, get the ones for infestation and fresh. Order before Monday morning and get them Thursday latest. 2 days and a clear tent as long as temps are right. Couple of mates had them since and they do the same now, spray with horticultural soap to slow them down till predators arrive. Best of luck mate 

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hi i have a sealed room infested with spider mite. Having read about co2 to rid them I tried with no luck . I started by dosing until I reached 10000ppm and held it at this level for an hr . I than doubled the amount I dosed for 2hrs . I than increased the volume again for 3hrs. (note I dont know what ppm this resulted in as my meter only goes to 10000). Finally I lollypopped the plants and defoliated the large shade leaves in an attempt to ensure I had maximum air flow and emptied a 10kg co2 cylinder into a 15ft *4 *7 over a period of 8 hrs and they still were alive. The plants themselves seemed ok, apart from the humidity spiking. I found an article where tests were done and the concentrations had to get to 30% before killing the mites unfortunately this also killed some of the plants. So im back to flea bombs, the co2 would have been great if it had worked as I wouldnt have to cover or remove some of my electrical appliances as the flea bombs damage sensors printed boards etc.

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On 07/12/2019 at 4:42 PM, mitchell68 said:

I can't recommend the spidermite predators enough, get the ones for infestation and fresh. Order before Monday morning and get them Thursday latest. 2 days and a clear tent as long as temps are right. Couple of mates had them since and they do the same now, spray with horticultural soap to slow them down till predators arrive. Best of luck mate 

How much are the predators and where dis you order them? 

I fucking hate spider mites!

Peace 

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6 hours ago, SquidgyBlack said:

How much are the predators and where dis you order them? 

I fucking hate spider mites!

Peace 

£23 for a tube of 2000 and I'm not sure I'm allowed to put external links so pm me. Theres quite a few places that do them I'd just be apprehensive if you can get then straight away as they have to be fresh otherwise they cannabilise themselves especially the Phytoseiulus and these are for infestation only.

 

If you want a predator to keep guard and eat anything that appears then you want Amblyseius or Californian mite predator. 2 sachets a plant and last 3-4 weeks. Thanks @wilson2 for the experiment.

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4 hours ago, mitchell68 said:

£23 for a tube of 2000 and I'm not sure I'm allowed to put external links so pm me. Theres quite a few places that do them I'd just be apprehensive if you can get then straight away as they have to be fresh otherwise they cannabilise themselves especially the Phytoseiulus and these are for infestation only.

 

If you want a predator to keep guard and eat anything that appears then you want Amblyseius or Californian mite predator. 2 sachets a plant and last 3-4 weeks. Thanks @wilson2 for the experiment.

Hey mitch thanls for your reaponse these look like the type of things that i definately need in my life haha 

First grow last year in the shed i done 8 Autos and after 5 weeks i was picking the little twats off every leaf it was horrible lol 

Ive had a look online and can only find 1000 of them for £30 

Any chance you can PM me where you gpt the 2000 for £24 

Id really appreciate it 

Thanks 

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