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Yellow leaves problem, Root Aphids!!

Love this forum, thanks!! So girls are in coco smart pots in a cap ebb&grow I'm using H&G line. I discovered Root Aphids and treated with some pyrithem bombs followed by a couple drenchings of Bayer fruits and citrus@10ml. immediately I saw hundreds of creeps in the rez. 2 days later as I'm inspecting the roots I see way more dead ones. The treatment looks to have worked !! My question is, the girls took a good size hit and there are alot of yellow leaves, not completely dead. I'm just coming into week 3 of flower, what can I do to promote the leaves greening back ? Would it help to foller spray ? Any help in that direction would great, I'm not into hearing Cut your lose and go , or anything thats not solution based. Thanks for the help!!
 
E

entheogen

In my experience with root aphids/lockout the damage is irreversible. You may get some color change around the edges of the damage but for the most part it is done. For sure any neurotic spots and burning/deformation is there to stay. Sorry not what you want to hear
 
Ohhhhhh so you have coco and RA's. You should come to the fungus gnat or winged root aphid thread and tell people that you are a coco grower with RA. Apparently soil growers think this is their problem alone and don't want the help of coco growers.

Listen man, there's a lot of different opinions on what to do here. I'm only going to say it once to you. Trash your grow, clean it out, start from seed, heat treat your coco, and never look back on these problems. Never ever ever ever use Bayer. It is a horrible pesticide. Heat treat heat treat heat treat heat treat heat treat heat treat heat treat.

I'm not going to stop on this forum until everyone accepts that heat treatment is the only true answer.
 

ballplayer 2

Active member
^^^ How are you going about heat treating? Are you baking your coco? Are you drenching with very hot water? Could these heat treatments be used by peat based or soil growers as well?

If there are no plants in the substrate being treated you could theoretically use much hotter water, than say those performing hot water dunks as a treatment on live plants. Please expound on the way you treat for root aphids. Thank you.

BP2
 
^^^ How are you going about heat treating? Are you baking your coco? Are you drenching with very hot water? Could these heat treatments be used by peat based or soil growers as well?

If there are no plants in the substrate being treated you could theoretically use much hotter water, than say those performing hot water dunks as a treatment on live plants. Please expound on the way you treat for root aphids. Thank you.

BP2

No problem! I simply preheat my oven 220 and heat for 90 minutes. You could easily get a whole bag of coco in there if you had the right size pan to place the coco in. If I was doing all 50L then I'd do 220 for 120 minutes.

Water boils at 212 so its not quite at the temperature I like. I can't guarantee that eggs will be wiped out with hot water. The oven really is easier and more effective here. If my work would let me use the autoclave I'd put all the coco in a mesh bag and just do that.

Once I'm done with heating I load the hot coco right into my smart pots, place the pots in the sink, and spray cool water with my sink hose. You're rinsing too...pretty swanky. This stuff is all so easy to do. Large scale, small scale...doesn't matter. Finally, it can be applied to a lot different media. Soil though, I'm not so sure about it. I don't grow cannabis in soil so I have little experience with the plant in soil applications.
 

ozzieAI

Well-known member
Veteran
what can I do to promote the leaves greening back ? Would it help to foller spray ?

generally i have found if the leaf is brown it won't come back...however since the roots have taken a hammering i use seaweed concentrate, fish emulsion and silica in a mild to medium strength as a foliar spray to help the plant back to health...

goodluck...
 
Entheogen, thanks for coming strait. I dont expect it to miraculously flip around, but there should be something to try before hanging it up. Nacho, your funny. I'm in the North Bay, deep in wine country.Everyone has RA !! It's just part of the trade off of being in my area, from what I understand. I will use preventive measures in the next run. However, NO TRASHING or CUTTING MY LOSE'S!!! And I as well as many use Bayer WITH PRECAUTIONS. I appreciate the advice and truly your hindsight, but to heat treat my medium would be a large undertaking ! So back to what I'm asking, any thoughts to help put some color back in the mix ?
 
OzzieAl, didn't see you post. Right on, good looking out. Very little brown, I believe I caught this fairly early. Some are yellowish green. So I'm hoping to nurse it back, you know.
 

ozzieAI

Well-known member
Veteran
OzzieAl, didn't see you post. Right on, good looking out. Very little brown, I believe I caught this fairly early. Some are yellowish green. So I'm hoping to nurse it back, you know.

hitting the Ra with imid would have knocked them dead and the plant since it is in flower hitting it early will reduce your losses. keeping the plant fed during the recovery is very important so foliar is excellent for this...seaweed concentrate is also excellent for root growth stimulation...
 
Thanks again ozzieal, just got back from the hydro store. Picked up some H2O2 , roots excel and some fresh EWC tea. I'll try foliar spraying tonight.
 
Entheogen, thanks for coming strait. I dont expect it to miraculously flip around, but there should be something to try before hanging it up. Nacho, your funny. I'm in the North Bay, deep in wine country.Everyone has RA !! It's just part of the trade off of being in my area, from what I understand. I will use preventive measures in the next run. However, NO TRASHING or CUTTING MY LOSE'S!!! And I as well as many use Bayer WITH PRECAUTIONS. I appreciate the advice and truly your hindsight, but to heat treat my medium would be a large undertaking ! So back to what I'm asking, any thoughts to help put some color back in the mix ?

Understood. If you feel like you should be selling, giving out, or smoking any of that product which contains this pesticide then you are doing it at yours and others risk. It's your body. Do what you want, but know that there is not one person that has proven that this product is safe to ingest as it pertains to the relation of the concentration applied and plants localization of the chemical in various tissues. Just don't start doing a bayer dunk/drench then go ahead and dump your pesticide waste down the drain. It is really a disservice to the world. I know everyone in that bayer thread does it. The least you could do is contact waste disposal and ask them how you should dispose of it.

I could heat treat 600L of coco in a day for much cheaper than someone could spend on the water and pesticides necessary to treat the same amount of media. It is much less work to do a heat treatment than a bayer dunk by far. In fact, you incorporate the heat treatment into the rinsing and prep of your coco. I do not understand why people will not do this. People are so stubborn. Ugh. I'm not going to quit on these motherfuckers until everyone accepts that neonicotinoids are unacceptable pesticides, especially in fruiting crops.
 
Nacho.... bro a can feel your passion with what your putting down and agree with most of what your saying. If I had the option to treat it with a ' green ' an effective way for the scale I'm at I would, but in some applications its just not sensible. I cant spend a dollor to save a dime, and thats how I see my time.
 
Nacho.... bro a can feel your passion with what your putting down and agree with most of what your saying. If I had the option to treat it with a ' green ' an effective way for the scale I'm at I would, but in some applications its just not sensible. I cant spend a dollor to save a dime, and thats how I see my time.

What I'm telling you is that you're spending a dime to save a dollar. Am I in the Twilight Zone? What's going on in this forum? I love you guys, but wtf...

What scale are you at that you find this so difficult? Do you understand how challenging it is to bayer drench an entire greenhouse? The larger the scale, the cheaper/easier/less time consuming heat treatments become over Bayer treatments. Again, Twilight Zone. That's all I can say for now. People aren't getting it. Good luck!!!! :)
 
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