Powdery mildew ruining my life... Someone save me!

GreenSanta

Well-Known Member
you always get your clones from the same source^? thats probably your problem! grow healthy plants with good airflow from seeds and see what happens. Horsetail tea and lemon spray both work really well for PM horsetail tea rocks
 

jayboss1

Well-Known Member
You think adding a dehumidifier would help? I grow in a basement that can get very moldy after several days of rain but running a dehumidifier 24/7 mitigates this. I still end up with moldy buds from jarring them too early but mold issues in the grow room are no longer an issue good luck
yeh everyone knows by adding a dehumidifier is a massive bonus for keeping the room HM low/down .so in keeping the mould/PM AWAY . ?? . I have my dehumidifier on constant at 24/7constant ,it doesn't mean its on all the time as it shuts its self off when it reaches the specific RH %level in what I want it to be ? .

it was a bit expensive at £140 but was worth every penny as if you get mould or/PM your up shit street and going to loose out ?

what's your temps like at ,lights OUT .also your air FLOW in your mouldy basement ?
 

Cannasaurus Rex

Well-Known Member
Would like to know more about horse tail tea....I grow inside 4x6 ran contiuous harvest fror 2 years no prbs and then the dreaded PM hit. I killed everything, sterilized the room and all gro equipment and started over. P came back within 4 weeks, tried milk, h2o2, mild bleach waste of time. Had to ensure no large temp drop at night (waaa no more color) with a space heater to keep around 74 at night 78-84 during daylight. Then had to eradicate with wettable sulphur. Follow directions and spray entire plant in veg, a day before going into bloom until dripping. It looks a bit like PM when it dries. Once in bloom there has been no PM 4 months later. Be sure to correct conditions in room first (clean dry warm floor) follow directions for mixing. The room has a residual sulphur smell for a while, but the new growth and buds do not carry the sulphur coating and taste perfect. The only problem with this treatment (IMO) is that if you tend to get spider mites, they will not settle on the lower fan leaves, they just go for the new growth, bringing them into close proximity of the bud (which normally gets mites last. Hope this helps, cheapest and way safer than a burner (ask your canary). Sulphur was less than 10 bucks
 

SnapsProvolone

Well-Known Member
Sulphur vaporizer works.

Eagle 20 works (veg only) dip is always better than spray.

Control your environment and PM won't he an issue.

Don't let dark temps drop or RH rises and dehu looses efficiency.

Stay between 45 & 55% and above 75f and have adequate air circulation especially down low. Lollipop if you must.
 

budleydoright

Well-Known Member
A buddy of mine has a strain that is infected with PM. Doesn't matter who grows it, always get's PM unless eagle 20 or other toxins used. He loves the strain and doesn't want to get rid of it or use toxins. He tells me that as long as he keeps it under a halide, the PM stays dormant. I have also seen a uv light sold to kill mold and mildew.
 

Kush Killington

Well-Known Member
Ive dealt with vicious mildew before. All i did was lower humidity and improve air circulation. I keep my humidity in the 20-30% range throughout the grow. No mildew. Dry the hell outta yur room and problem solved.

Air circulation is KEY!

Sir KK
 
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