(yet another) thrips thread

CobKits

Well-Known Member
saw some leaf damage here and there and was coming into summer and was mostly doing moms/clones. I would squish the very few yellow worms i saw and was dipping clones in azamax as i take them and again once they root and a week later when i transplant. but they took over my moms and also got into the one flowering tent i have going (GMO about 5 weeks into 10-11 week flower)

clones are in rockwool and are easy to fully dip - no worries there.

in both mom and flower tents the thrips tend to live on the shadier bottom leaves, the tops still look fine - they seem to be adverse to either the bright light or the high temps. but these are both pretty dense on the bottom.

i only ever use azamax or spinosad, and in veg at that.

the moms ill probably cull soon and start from scratch with new moms from the clean clones i might spray the moms a bit to knock them back to get another round or two. again the tops are pretty clean so its a good source of clones but they are going to town on the bottoms

ok need some advice on best way to salvage the flower crop. tops will be flower and bottoms will get frozen, hashed, and pressed

i was gonna pull any remaining fan leaves (mostly damaged) from the flower tent before spraying the bottoms with azamax. id prefer not to spray the tops, but if im going to do it now would be pretty much the latest i would want to do it.

in general im pretty chem adverse. ideally i will go nuclear to get rid of all pests and not have to use any chems. have successfully been able to fully eliminate mites and PM in the past (dirty clones). my dry high-altitude environment is generally pretty inhospitable

Qs:
1. if i pull all the bottom leaves, will any survivors move to the tops for lack of a food source? or is it better to leave 'sacrificial' leaves at the bottom and continue to spray where i see activity and then pitch the bottoms instead of pressing? the main reason id want to pull leaves is to reduce population and open it up for spraying. would allow me to spray better up into the canopy and hit the bottom of the remaining fan leaves

2. i know both azamax and spinosad are considered systemic, but are either stable enough to implement in a flood tray situation? (media is rockwool all the way thru). Spinosad reportedly breaks down within 24 hours of mixing, so other than directly watering the cubes with a high dose, this seems ineffective. azamax is probably more stable, but i think it still has potential to funk out my rez. when i hve it in bucket for dipping after a week or two its pretty gross. i usually hand water thru week 3 or 4 of flower as i change my nute mix from N heavy to a 3-2-1, then start with a fresh rez of 3-2-1 which lasts the next 4-5 weeks to finish flower with only top ups to control EC and pH. id rather not change my whole rez out every week or two due to bio activity. Would it be better to keep the rez liquid as is and top water the cubes slightly to get as little as possible in the rez?

3.if alternating spinosad and azamax, what is best interval? application with alternate product every 5-7 days?

4. if going nuclear (which i can do after this flower cycle wraps up, can move the clones to a safe place), whats the best thing to sterilize the empty space (large room with tents)? pyrethrum bomb? hot shot strips in each tent?
 
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DCcan

Well-Known Member
I'd spray down the grow area first, then the tent or room with some type of contact spray so they cant escape, kill all the eggs and re infection sources. Either Spinosad, Bug bomb, Pyrethrin+B.bassiana, or some oil based product depending on what the surfaces and layout are.

Azamax takes longer to break down, so hand water the plants at highest label rate in fertigation and foliar, then a dose of Spinosad at highest rate 3~5 days later. That should knock the crap outta them, just see how the plants and bugs look and make a judgement. You might have time for another dose of Azamax, or continue with Spinosad.
A bit of Regalia mixed with that goes a long way, stimulating plant uptake in roots and as a surfactant for the leaves.

Alternate Venerate/Grandevo and citric contact spray after that, those are OMRI labeled for flower and work well in low humidity.

Once it's sprayed and taken up by roots, you could flush res, I suppose. That's beyond me.
 
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CobKits

Well-Known Member
also ive seen citric acid mentioned as a control - at what concentration should it be mixed?
 

DCcan

Well-Known Member
also ive seen citric acid mentioned as a control - at what concentration should it be mixed?
I don't know, I've forgotten actually. There's a few DIY solutions.
Adding alcohol to it help with penetration & dessication, faster drying time, low concentration won't melt trichomes.
I've got a pre made bottle I'm still going thru.
 

wakenbake91

Well-Known Member
This is my worst fear, they're ALL over around outside the house. I have sticky yellow traps outside around the house and spray the windows, screens and doors with Bayer suspend SC, its kept them at bay to this point but I am scared they might have made their way into my flower tent. I have a few lower leaves that I'm not sure if its windburn or what. They almost look like these pics but I haven't seen any bugs in there yet.
 

CobKits

Well-Known Member
This is my worst fear, they're ALL over around outside the house. I have sticky yellow traps outside around the house and spray the windows, screens and doors with Bayer suspend SC, its kept them at bay to this point but I am scared they might have made their way into my flower tent. I have a few lower leaves that I'm not sure if its windburn or what. They almost look like these pics but I haven't seen any bugs in there yet.
look for the glaze on he leaves looks like spit. also little black specks are their poop
 

wakenbake91

Well-Known Member
No glaze, or specs, they seem to be pretty fixated on the cucumbers outside on the back of the house thankfully. I am definitely on the prowl constantly for them though. They seem to be pretty damn close to impossible to completely eradicate tbh, at least outdoors.
 

gwheels

Well-Known Member
Check with your local bug vendor and get attack bugs
Cucumeris in time release
Pirate Bugs
NemoTodes
Hypostasis Mites
Swirski Mites
And there is a new one that is VORACIOUS

I have battled them off and on...they love it outside here and dogs bring them in. I use an IPM regiment to keep them away but when it was bad i used attack bugs and wiped their asses out.

Blue stickies work best for them too...but they will go on yellow ones.

Good luck
 
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