Powdery mildew prevention

[Crooked8]

I started using eagle 20. With pro tekt as a surfactant and ph between 4.5-5.5(i guess this is the correct foliar ph range). I usually combat pm with a neem oil pro tekt sm-90 foliar mix. Sometimes it wouldnt do the trick though. So now im realizing for true results a systemic fungicide is the way to go. Think if i use the eagle 20 in late veg/week1 of flower and then run my neem solution at like week 3-4 i should be pm free through a 9 week run? Ive sterilized the environment and it always comes back eventually.

 

[youngtrader9689]

eagle 20 is systemic, so does that mean this stuff is in the plant tissue after its been harvested?

 

[Crooked8]

No. It only stays in the plant for a certain amount of time. That amount of time is debatable. Ive heard anywhere from 21-45 days depending kn dosage. Basically when i was told to use it they said they used a indicate 5/ eagle 20 solution 2 days before every flip and they rarely if ever saw powdery mildew through an 8-10 week cycle. They said using it 1-2 weeks into flower on an 8-10+ week is completely safe. "Them" being progressive options in la. Also btw, theyre the shit.

 

[youngtrader9689]

have you heard anything about this product causing hermies is applied during early flower?

 

[Crooked8]

No i havent. If you have verified genetics that dont throw nanners already, i doubt running eagle 20 would make them herm out. But this is my first time using it so i could be wrong. Id be PISSED!

 

[GanjaRebelSeeds]

I use a sulfur burner in veg for 1.5 weeks about 1.5-2 hrs a night with lights off. Sometimes in flower I run it every 3rd day for the first 2 weeks.
Outdoors I spray potassium bicarbonate around once a month and then weekly during stretch and in early flower.
I wouldn't smoke anything thats been sprayed with eagle 20,thats some bad shit.

 

[Crooked8]

Its not in the plant if you do it early enough. Its used on various consumable crops. At least thats whatbmy research has shown.

 

[N-P-Kali]

I wouldn't smoke anything thats been sprayed with eagle 20,thats some bad shit.

 

[yerboyblue]

I started using eagle 20. With pro tekt as a surfactant and ph between 4.5-5.5(i guess this is the correct foliar ph range). I usually combat pm with a neem oil pro tekt sm-90 foliar mix. Sometimes it wouldnt do the trick though. So now im realizing for true results a systemic fungicide is the way to go. Think if i use the eagle 20 in late veg/week1 of flower and then run my neem solution at like week 3-4 i should be pm free through a 9 week run? Ive sterilized the environment and it always comes back eventually.

In my experience, neem kind of sucks for PM control. It just kind of covers it and doesn't get rid of it, and new growth will easily get it since neem isn't coating it. Sulfur sprays are kind of the same way regarding new growth, but it seems to get rid of the PM that was there. I never have any issue with PM using sulfur sprays at a mild rate, much less than what's labeled, if I catch the PM really early. They pull through all the way without any new PM, but I also suspect it's because I can open up the plant better as it stretches and gets bigger in flower.

I suspect that if you keep getting PM, that you might possibly have the plants too crowded, and may wait too long to prune, and have branches crossing, leaves touching, all kinds of stuff. I battled it for a couple years and starting having success with better canopy management and using sulfur sprays earlier when PM just started to appear, and as prevention. Pretty much all cases of PM I have experienced were due to plants being crowded at some stage (other than introducing an used air conditioner to my veg area).

Using Eagle 20 as a preventive should really be all you need, especially if you use it shortly before flower. I have a bottle sitting to use as a preventive, but haven't actually used it yet. Everyone swears by it. I wouldn't recommend using neem as a PM preventive in flower. Or really even sulfur spray past week 2 of flower.

Also keep in mind the other conditions I mentioned with crowing and air flow as you use Eagle 20, maybe some minor tweaks and new practices could help and give you some piece of mind about whether or not it will come back, but bottom line, prevention is key.

Oh, and if you decide on trying sulfur, whether using a burner or a spray, it will make everything it touches stink like sulfur. Pretty much forever. So, not good for flowers, or rooms that are to be converted back to living areas and such. And if your temps exceed the low 80's, you will burn your plants, same if you use too much. Even mild amounts, like 1/3 of what's labeled is pretty effective as a preventitive.

 

[Crooked8]

Ive used sulphur burners. I like to run them between harvests so no plant material is in there. That is a great preventative. I usually dont have too much crowding. I do lots of lsr and make sure nothing is too tight in the canopy. I use trellis to move everything where it needs to be. On ogs i run 2 nets every time. I think eagle 20 was the ticket. Im not burning sulphur or running my neem foliar on the plants i treated with the eagle. I want to see if it comes back at all. Thanks everyone

 

[yerboyblue]

Ive used sulphur burners. I like to run them between harvests so no plant material is in there. That is a great preventative. I usually dont have too much crowding. I do lots of lsr and make sure nothing is too tight in the canopy. I use trellis to move everything where it needs to be. On ogs i run 2 nets every time. I think eagle 20 was the ticket. Im not burning sulphur or running my neem foliar on the plants i treated with the eagle. I want to see if it comes back at all. Thanks everyone

Sounds like you do pretty much the same method as me, lst all day! Can't imagine a grow without 2 layers of trellis! Do you have branches crossing at all when you trellis? I used to, but as soon as I stopped doing this, and made sure not to force the branch location so much, I had way less PM issues.

 

[Crooked8]

Once in a while a branch will cross but with Og its such a stretcher that by the time im done training them through the trellis nets and doing lots of lower stem removal more than half the plant is gone from the bottom up. The canopy is tight but not too tight. My plant counts have gone down and gs per watt has gone up. Sometimes less is more . If im running cheese or amnesia or any if my other strains that dont stretch as much i only need one net and branches never really cross. If its og....shit ive used 3 nets before!

 

[youngtrader9689]

i have actually had hermies pop out from a early flower application.

 

[highonmt]

i have actually had hermies pop out from a early flower application.

Sounds like it might be in your genetics...We had an applicator spray our warehouses with the stuff several times in pre flower and never saw hermies except from the NYCD which made em anyway. Filter your inlet air with a hepa keep your rh up above 30% and inspect your plants often. If you get it early you can control it more effectively. Mop with bleach and move pots while you are at it. Keep crap like old buckets bottles and other junk out of you grow space, repaint or wipe down walls and keep er clean. Eagle 20 is nasty shit use your ppe or hire it out like we did.
HM