Powdery mildew at start of crop - Bad?!!

[TGT]

I have a problem that came up about two weeks ago that is really starting to have me concerned. I am three days to a week from transfering a huge amount of clones that have been vegging for about three weeks now to a permenant grow location. This grow location is new and I don't want to start off with problems right from the start. The problem is powdery mildew. I have taken care of it and it looks to be all gone for a week or so now, but I am worried it is just going to contaminate my new location regardless of the steps I have taken to elliminate it. I started these clones early at a different location as we got the new place set up so that I would have a head start. I don't want to start with new cuttings as that will set me back the three weeks veg time plus the couple weeks they took to root and take off. This new grow is a perpetual garden and to keep it clean and disease free is of prime concern.

My question is, should I blast them again even though the mildew seems gone and then transfer them to the new location or start off with new clones that I have access to purchase in the new location.

I don't think powdery mildew with such a small contamination that seems to be taken care of warrants cleaning house and getting new clones. I don't want to be set back that far as warm weather is coming and I wanted to start off when it's cooler to get things dialed in properly before the summers heat hits. I got vented shrouds and ballasts located in an other room and to boot a central air conditioner so heat shouldn't be a problem, I hope.

Any input or suggestions would be greatly appreciated as this grow is almost ready to be put in action. Thank in advance!

TGT

 

[sensirocker]

TGT, i had this problem about 2 years ago... first off, i dont think mildew is that big of a deal, since it usually goes away after 1 or 2 applications of some good product and a thorough room sanitation (which is what i did). I didnt have any re-occurrences.... imo mites are much more problematic.... i used "Serenade Garden Disease Control" for the mildew, and it never came back...
I think buying a whole new batch of clones is a bit extreme for a mildew problem, especially if you clean the new room out really well and apply a good cleanser to them. If you want to be safe and are really concerned about this batch, why not put a couple plants in for a week and see if anything comes up.... if nothing does your probably fine.

good luck,

-sR

 

[TGT]

Great, you made me feel much better! I have never had a problem with mildew before so it had me worried. I thought it might be as bad as mites, and those little buggers are nasty. I guess i'm off to the hydro store to find 'Serenade'. Can I get it at any store like Home Depot, or does it have to be a Hydroponic store? Thanks!

TGT

 

[wildheart]

Never get PM...

Never get PM...

Hey TGT,

Here's a suggestion...

Go to local nursery (not pot store) and buy a product called wettable sulfur and use it in spray form as directed, about 2 TBSP/Gallon.

Whenever I get new material within a few days of showing new growth I hit them with the WS, and then again twice more at 5 day intervals. And I never get PM.

BTW, going this route is very old school, very non-hip, freaks alot of people out (had one guy I suggested this to look at me in horror with wide eyes and say "... but isn't that a bio-fungicide?!!!) who knows... All I know is that little blue-haired old ladies across Amaircia have been walking through clouds of that shit as long as they've been growing fair-winning roses... It's one of the only reasons we who enjoy wine get to drink some good stuff when we spend for it!

In a word, wettable sulfur works, has forever, and is one of the cheaper and easier applications, and best of all, is a well known 'farmers tool' i.e., the real deal.

Hope it helps,

Wildheart

 

[sensirocker]

eh yeah i mean you can try the wettable sulfur or whatever, but to be really safe i would go for the serenade because you know it will be reliable especially since your worried about getting this crop through.... i made 2 applications with this stuff and had no problems ever... its only 10 bucks i think, but well well worth it if your going for security... good luck TGT...

-sR

 

[sensirocker]

oh, and i think you can only get it at a hydro store.... or online of course

 

[baccas125]

Has anyone tried potasium bicarbonate?? Products like green cure or advanced "baricade"?

 

[JJScorpio]

Do you have any neem oil handy? That not only prevents PM, it will also keep mites and other bugs away. Use it 2 or 3 times on a 7 day cycle and you will be fine.

 

[TGT]

Wow, I got way more options then I thought possible. I guess having this many options that are proven to work shows PM to be not that nasty of a problem after all.

Sensirocker: I thought of mixing powdered sulphur with water and spraying my plants, but I just figured someone would have mentioned it already by now and also the possibility of the sulphur not disolving in the water. This is the first time I have ever heard of anything like this until now. It's good to know now for sure that it works, and it wasn't just a stoned idea at the time. Best of all I know what type of sulphur to purchase now. Thanks for that excellent alternative. I think I will use the Seranade first as I know my store has it in stock, but that will be my second option as it sounds the most logical.

JJscorpio: I have never used neem oil before but a friend told me it goes on thick and coats the plant for a few days with an oily substance, is this true? Also, can this be bad for the plants 'breathing'? (not breathing but you know what I mean - can't think of the word right now, damb AK!)

Thanks again everyone!

TGT

 

[sensirocker]

ugh neem oil IMO is such a pain in the ass, not to mention that it smells like the devils anus. ive never had really really good results with neem.... it usually helps, but doesnt work 100%.... ive only used to for mites tho, so i cant speak for it on the mildew issue.

 

[JJScorpio]

It is very stinky, lol. The oilyness is very light if applied correctly and after a few days all is well again. You have to be sure it is mixed completely. I have always had good luck with it as a preventive for mites and mildew....