spider mites

Xaloty

Outdoor/Greenhouse Autoflower Grower.
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Hi, why cant I spray neem oil agaisnt spider mites when the plants are flowering? And what can I do if the plants are flowering? Spray them with water?
 
Hi, why cant I spray neem oil agaisnt spider mites when the plants are flowering? And what can I do if the plants are flowering? Spray them with water?

Neem oil will ruin the taste and smell. Plus it's toxic to some degree so I wouldn't want to inhale it.

How far are you into flowering?

IPM strategies along with better sanitation habits are going to be key to eradication. Imo, finishing this grow, culling every plant you have and doing a complete cleaning will be best. Fumigate the house if you need to, clean EVERY surface with soap and water including all your equipment, then using fresh equipment where you can.

1) Change your clothes and shoes if you have to before going into your grow room, keep pets out of your grow room, avoid buying plants unless you quarantine them for a few weeks, and set your grow back up.

2) Once you have some plants going past the first week, start hitting them with Dr. Zyme and peppermint Castile, alternating the products.

3) As they transition to flower, where it becomes undesirable to spray - hit them weekly or bi weekly with predatory mites from Arbico or Nature's Good Guys.

4) Keep your VPD correct, https://www.dimluxlighting.com/knowledge/vapor-pressure-deficit-vpd-calculator/ - spider mites don't like moist or cooler temperatures. I'd err on the side of caution keeping temps and humidity below 78f and humidity above 53-58%.
 
Neem oil will ruin the taste and smell. Plus it's toxic to some degree so I wouldn't want to inhale it.

How far are you into flowering?

IPM strategies along with better sanitation habits are going to be key to eradication. Imo, finishing this grow, culling every plant you have and doing a complete cleaning will be best. Fumigate the house if you need to, clean EVERY surface with soap and water including all your equipment, then using fresh equipment where you can.

1) Change your clothes and shoes if you have to before going into your grow room, keep pets out of your grow room, avoid buying plants unless you quarantine them for a few weeks, and set your grow back up.

2) Once you have some plants going past the first week, start hitting them with Dr. Zyme and peppermint Castile, alternating the products.

3) As they transition to flower, where it becomes undesirable to spray - hit them weekly or bi weekly with predatory mites from Arbico or Nature's Good Guys.

4) Keep your VPD correct, https://www.dimluxlighting.com/knowledge/vapor-pressure-deficit-vpd-calculator/ - spider mites don't like moist or cooler temperatures. I'd err on the side of caution keeping temps and humidity below 78f and humidity above 53-58%.
Can I put the plants outside for about 2-3 days? Could that impact the mites? Because the temperatures at night will drop to 10degrees celsius. Theyre about 2.5 weeks in flowering, but i have 5 new plants that arent flowering, ill try to destroy the mite with neem oil and then put them in another greenhouse where theyll be alone.
 
Can I put the plants outside for about 2-3 days? Could that impact the mites? Because the temperatures at night will drop to 10degrees celsius. Theyre about 2.5 weeks in flowering, but i have 5 new plants that arent flowering, ill try to destroy the mite with neem oil and then put them in another greenhouse where theyll be alone.

That is counterproductive. The spider mites probably got in because you brought them in from the outside.

You need to use Neem and Castile in an alternating fashion on the veg plants. Neem alone isn't enough.

If you're in a greenhouse, I really suggest following the aforementioned IPM methods.
 
Can I put the plants outside for about 2-3 days? Could that impact the mites? Because the temperatures at night will drop to 10degrees celsius. Theyre about 2.5 weeks in flowering, but i have 5 new plants that arent flowering, ill try to destroy the mite with neem oil and then put them in another greenhouse where theyll be alone.
Can I put the plants outside for about 2-3 days? Could that impact the mites? Because the temperatures at night will drop to 10degrees celsius. Theyre about 2.5 weeks in flowering, but i have 5 new plants that arent flowering, ill try to destroy the mite with neem oil and then put them in another greenhouse where theyll be alone.
You can turn the heat up if you have a serious problem and don’t want to spray anything on your flowering plants.

 
You can turn the heat up if you have a serious problem and don’t want to spray anything on your flowering plants.



He suggest using it in between grows.

Personally, that's a big no for me because they hide on the underside of leaves and are going to thrive in higher temperatures.

You can raise the temps and humidity to make the overall environment undesirable but what Kushman suggest isn't going to be effective IPM. The heat will rise so if there is debris or dark spots down low where they have laid eggs or begin to multiply it won't be effective. Plus it takes around a month of consistent IPM to get rid of them especially with plants going.

It doesn't really stop the issue because more than likely the pest are clinging to clothes, pets, and hair thereby traveling to the grow room.

You could do this with c02 or ozone but the plants need to be out and the room should still be sanitized
 
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He suggest using it in between grows.

Personally, that's a big no for me because they hide on the underside of leaves and are going to thrive in higher temperatures.

You can raise the temps and humidity to make the overall environment undesirable but what Kushman suggest isn't going to be effective IPM. The heat will rise so if there is debris or dark spots down low where they have laid eggs or begin to multiply it won't be effective. Plus it takes around a month of consistent IPM to get rid of them especially with plants going.

It doesn't really stop the issue because more than likely the pest are clinging to clothes, pets, and hair thereby traveling to the grow room.

You could do this with c02 or ozone but the plants need to be out and the room should still be sanitized
He comments how you can use this technique while plants are flowering.
It might not get rid of them completely but possibly save his current grow without spraying anything.
 
He comments how you can use this technique while plants are flowering.
It might not get rid of them completely but possibly save his current grow without spraying anything.

Once they are in, especially if he is seeing webs - his only option is getting a paper towel and manually cleaning his plants then releasing predatory mites periodically. No spraying necessary.

Spider mites have been bad for the past year, lot of growers in my area have gotten hit with them - I dealt with them for several months, even killing a whole tent - I don't mean to be disagreeable but I disagree with the whole video from his IPM "strategy" to good sanitation plan.
 
They have recently just started to appear, no webbing, last year I was just manually killing them with my hands.
 
I sprayed the veg plants with neem oil soap water
 
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