Heya PC- hope yer well.

One of the big advantages of a thicker cell wall ( referring to another thread) is resistance to pathogens. The silica will boost yer plants immune system cross the board. Also makes it more difficult for sucking insects to pierce the wall (slowing them down), and for chewers to ,well, chew. Leonardite based silica supps are dirt cheap ( heh heh)- you should give one a shot. Silica Blast and Protekt work really well too.

But really, air flow and humidity are the big factors- Can be a real b*tch in a scrog @ canopy level. Do you have a fan under the screen? Maybe a couple of wall fans just blowing straight up?

Both the Serenade and the sulfur can be used preventatively.
rhizome Reviewed by rhizome on . Preventing Powdery Mildew I have a particular strain of mj that is a Master x Bubba hybrid. It's a really potent strain that I really like. The only problem is, it's highly susceptible to powdery mildew. I have six different strains of mother plants growing together in the mother cab. The MxB will get covered with powdery mildew while all the plants around it have none. I'm a couple weeks into veg on some plants that were cloned from the mother and I noticed yesterday that the leaves have a slightly dull patina to them Rating: 5