Does this look like leaf septoria?

JustBlowingSmoke

JustBlowingSmoke

Member
I'm seeing these tiny little spots show up on some random leaves. wondering if this could be leaf septoria?
[Grow Info - 1000 watt hps, 4x4 tent, grown in soil, temps are usually in the low 80s at lights on and around 68 to 70 at lights off, plants are 4 weeks from the start of 12/12 and I'm Using Nectar for the gods basic/starter line. I pH my water to 6.5 but recently had an issue with a faulty pH meter which I think is attributing to some yellowing of the leaves due to possible nitrogen deficiency.]
 

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JustBlowingSmoke

JustBlowingSmoke

Member
Dr. Who said:
If your eyesight is good and you look close - yeah! Any darker then normal spots? Any 3D white spots?

Mites!
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NO 3d spots, but even just looking at that picture I do see a few small dark spots on the leaf. I'm gonna have to investigate when the lights come on. If it is mites is there any safe treatment to use while in flower or am I dealing with a lost cause in that scenario?
 
Roger A. Shrubber

Roger A. Shrubber

Well-Known Member
i agree, looks like mites. if you're 4 weeks into flower, the only thing i would use is spinosad, i like captain jack's dead bug brew. you're supposed to be able to use it till the day before harvest, but 3 or 4 applications 4 days apart ought to do the job, which will leave you weeks for any residue to dissipate
 
JustBlowingSmoke

JustBlowingSmoke

Member
Well I beleive these are the mites you speak of in the pic. Does the Spinosad work for any kind of mite or is there anything I should know before trying to treat. Also thanks for taking the time to reply and helping me get this diagnosed asap.
 

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JustBlowingSmoke

JustBlowingSmoke

Member
Also, should I try pulling off affected leaves or anything like that. Just trying to figure out how to tackle this effectively. If I order the Spinosad I'll be lucky if It gets here by early next week.
 
The_Enthusiast

The_Enthusiast

Active Member
I had great success with:
https://en.wikipedia.org/wiki/Abamectin
For Mites and Thrips

PS (copy/paste from other post) I am licensed insecticide/fungicide user (in my country) but I am against such use as a PREVENTIVE option - but if you get a invasion of spider mites or thrips or some kind of mold its better to use it as little as possible to save your crop/operation than loose it. The problem with modern agriculture it they use everything PREVENTIVE and use it in abundance....
 
Roger A. Shrubber

Roger A. Shrubber

Well-Known Member
the only mites it might have a problem with is broad or russet mites, but i believe those are smaller than spider mites, and harder to see. if you can easily see them they're probably spider mites and the spinosad ought to be fine. if they aren't in flower i like to alternate spraying spinosad and pyrethin, but once they start to flower i try not to use pyrethin, it is more toxic than spinosad and takes longer to dissipate.
 
Dr. Who

Dr. Who

Well-Known Member
The_Enthusiast said:
I had great success with:
https://en.wikipedia.org/wiki/Abamectin
For Mites and Thrips

PS (copy/paste from other post) I am licensed insecticide/fungicide user (in my country) but I am against such use as a PREVENTIVE option - but if you get a invasion of spider mites or thrips or some kind of mold its better to use it as little as possible to save your crop/operation than loose it. The problem with modern agriculture it they use everything PREVENTIVE and use it in abundance....
Click to expand...
Roger A. Shrubber said:
the only mites it might have a problem with is broad or russet mites, but i believe those are smaller than spider mites, and harder to see. if you can easily see them they're probably spider mites and the spinosad ought to be fine. if they aren't in flower i like to alternate spraying spinosad and pyrethin, but once they start to flower i try not to use pyrethin, it is more toxic than spinosad and takes longer to dissipate.
Click to expand...
For me it's FORBID 4F and BOOM! Done!
The OP might decide it's not for him but, the tox reports are real nice.....I never do a prevent use of anything!

I can not bring myself to apply any "oils" to my plants.....Funny how they are now discovering that NEEM is MORE toxic then they thought! Well, we all have our eccentricities now, don't we!
 
JustBlowingSmoke

JustBlowingSmoke

Member
Well I beleive that it is isolated to one plant. I see no visual bugs on any other plants as well as no spots on the leaves of the other plants. I separated the plant I know is infected from the rest and I wiped down every leaf on the plant with a little water and a cloth. I am trying to keep this contained until Friday when my spinosad will arrive. I figure I'll spray down the plants and clean the tent out and give it a good spray and wipe down before putting the plants back in. Hoping all is not lost lol.
 
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