that sounds correct, first time using ocean forest. im used to light warrior and the regular FF potting mix, so i assumed it was just as good to use as ive heard great results from other people.

they were started in rapid rooters as i was trying to be as cautious as possible with a new strain.

what is the name of this "hot and nasty" disease that i have here then?

originally it looked like that in the picture, then the spots became alot darker. now it seems to have evolved into rust issues, or maybe its just one problem fighting off another.

about the serenade soil drench though, do i want to just lightly cover the top layer of soil and then water as normally?
or add serenade directly to the gallon of nute/water?


ive heard of someone using serenade directly into his hydro reservoir


also: while trying to macguyver something up today i noticed that a bag of regular FF potting soil (was on sale for 5$!) contains hydrated lime and oyster shells for balanced ph.
could i make a tea with small amounts of the soil added to try and get some calcium from that back into the soil of my problem plants? or would that be a trivial amount


thx very much for your continuing help
criom Reviewed by criom on . Rust - Black leaf spot mold help! So far ive lost 2 plants to this problem and more on the way. Ive been using serenade every 3-5 days with some success but it keeps coming back. Will i have to keep spraying the plants for their entire life cycle or will they eventually fight it off? What else can i try to combat this problem? i have a sulpher spray, and am considering trying the baking soda method if someone thinks that is a good idea. im hoping someone experienced with serenade can chime in, it seems to work Rating: 5