Spider mites in a SCROG grow

[endgegner]

I have an Ethiopian at 10 weeks of flowering. This pheno needs 16 weeks and is developing buds right now. Since it is a scrog it is quite hard to spray the leaves, as I can't get everywhere. But it got a bit better with Spinosad. I am also ordering some neem oil soon.

Has anyone had the problem in a scrog and how did you solve it?

PS: Oddly, there are already webs, meaning the infection is quite progessed, however, the leaves don't have those white dots or yellow spots and I barely see any crawling below the leaves. And it is only a few spots where it is affected. Last time when I had them they had webs everywhere within a few days after realizing them.

 

[revegeta666]

You really don't want to smoke buds that have been sprayed with pyrethrins at week 10. Or neem.

If you can see webs, the infestation is very advanced and your plants are absolutely full of spidermites. You can't judge how many of them there are with the naked eye. You need a microscope or magnifying lens to see them.

Weird that you would ask this but not provide any pictures. Without seeing any pictures and just going by what you typed, I would trash them, clean the tent thoroughly multiple times, and start over.

 

[Dime]

You really don't want to smoke buds that have been sprayed with pyrethrins at week 10. Or neem.

If you can see webs, the infestation is very advanced and your plants are absolutely full of spidermites. You can't judge how many of them there are with the naked eye. You need a microscope or magnifying lens to see them.

Weird that you would ask this but not provide any pictures. Without seeing any pictures and just going by what you typed, I would trash them, clean the tent thoroughly multiple times, and start over.

And don't use outsourced clones

 

[endgegner]

Non Affected part



Whole tent



Affected part



You also don't see those white dots and yellow leaves.

 

[goingrey]

You could try to control the situation with a vacuum cleaner

 

[endgegner]

You could try to control the situation with a vacuum cleaner

Yes, I will do that in case I don't get rid of them. Some years ago I couldn't get rid of them and they were webbing heavily. I took a vacuum and trimmed a plant for like three days. I could barely see anything. And I don't mind about vaping a few dead ones, lol

I went for spinosad today and yesterday and two webs reappeared. I think I will keep going for spinosad eberyday until the neem oil lands and then go for neem oil until Sunday. Then the vacuum cleaner.

 

[endgegner]

You really don't want to smoke buds that have been sprayed with pyrethrins at week 10. Or neem.

Normally I agree with you, but it's the slow flowering Ethiopian pheno. As you can see it's starting to produce the first calyxes and the pistills are barely advanced. It needs more than six weeks to finish. I feel like it's spraying a 9 week strain at week 3-4, which is in my opinion still ok for me but at the latest stage where I would do it.

 

[revegeta666]

Why even bother with people like these Good luck!!

 

[BumSplodgeBrownPants]

Predator mites. Grab a shaker of mites and dump them on fan leaves here and there. Not the buds.

I grab half a dozen sachets of slow release at the start of a grow, only time I had a mite infestation was when I couldn't be bothered. Then I had to buy a shaker of the real aggressive predators, it knocked the infestation back well, but not cleared. I had 2 plants hit hard by mites and 3 plants untouched.

Don't spray plants in flower. Especially with bug killers.

Neem is a waste of time against mites I've found.
A few drops of washing up liquid in water sprayer works well for them if you aren't in flower. But it won't clear an infestation.
Only way to clear them is kill everything and nuke the grow space.

 

[endgegner]

Predator mites. Grab a shaker of mites and dump them on fan leaves here and there. Not the buds.

I grab half a dozen sachets of slow release at the start of a grow, only time I had a mite infestation was when I couldn't be bothered. Then I had to buy a shaker of the real aggressive predators, it knocked the infestation back well, but not cleared. I had 2 plants hit hard by mites and 3 plants untouched.

Don't spray plants in flower. Especially with bug killers.

Neem is a waste of time against mites I've found.
A few drops of washing up liquid in water sprayer works well for them if you aren't in flower. But it won't clear an infestation.
Only way to clear them is kill everything and nuke the grow space.

What predators do you suggest? EDIT: Over read the sachets part. Phytoseiulus persimilis.

 

[BumSplodgeBrownPants]

What predators do you suggest?

I use Amblyseius californicus sachets as a preventative.

I'd suggest Phytoseiulus persimilis for an infestation to knock it back.

Good spectator sport to watch them go to work on the mites with a magnifier glass.

 

[endgegner]

I use Amblyseius californicus sachets as a preventative.

I'd suggest Phytoseiulus persimilis for an infestation to knock it back.

Good spectator sport to watch them go to work on the mites with a magnifier glass.

Yeah, I will get them soon and stop using spinosad and won't use the neem.
Now I need to find how long you should wait to set them there after using spinosad.
Not that they die of the leftovers in the plant lol