Hello.
Can some1 help me with problem below in MEGA please?
I sprayed twice with baking soda + oil to pervent mold expansion, but it has returned (if this is mold)?
I gently cut all the leaves from the plant leaving only the healthy ones with gloves, ofc did not touch the healthy ones.
Anykind of advice would be nice, thanks guys!
That’s calcium deficiency. Stop pulling leaves or it spreads; if not treated
If I dont pul them its spreading even faster, thats the problem. Or it looks like its spreading faster.
Can I put something to the soil to increase calcium? If yes, what?
I have as well this problem as ligh green color on one of the plants.
I use the same soil and nutritients for all the plants and seeds are all The Church.
Gypsum, oyster flour, or diatomaceous earth would be the fastest acting.
That one looks healthy. Green meristem and leaves on it. Maybe a lil bit lighter on color due to genetics or it being a heavier feeder and is depleting nitrogen reserves.
This close to flowering transition, you’d wanna give it a slow release form of N. Many options on that. I think soy bean meal (moderate breakdown) would be ok to use for a transition top dress. It would break down over 4-5 wks, but it lowers the pH while doing so, FYI.
Adding that with some bone meal would help provide additional N, plus P & Ca for the flowering push.
Thanks mate! Will give it a try tomorrow, as im losing leaves rapidly.
Never have I ever encountered a problem like this, each year it went through without problems, this year this is killing the growth of the plants and giving it a slow grow.
Usually I make 700g/plant outdoors without mold or any peaticide problems.
BTW, can i put the gypsum as a spray on the leaves or better directly to soil?
Ca is a semi-mobile deficiency. Those brown spots are where the highest amount of Ca is in that leaf. That’s why you get the spots.
You can add gypsum as a top dress and water it in. It’s water soluble. I wouldn’t do it as a foliar. The DE would be better as a foliar spray.
Next time you water, give it 200 ppm of cal mag, report back in a week and tell us if it’s getting better! You can foliar spray cal mag as well for even faster results.
Thanks guys! Already bought everyrhing and will water when the sun goes down!
Sry, didnt have the possibilty to answer before as limited daily replies.
But grateful for the help!
Do you have any apple trees near by? It looks like a cedar-apple rust that apple trees get, also juniper trees.
Pear tree up above, but the pears roll down the hill to rhe ground of the girls… no direct touch with the leaves.
Didnt have any problems in 3y of growing, should I be worriee?
No, I don’t think the cedar-rust will hurt your cannabis plants, if that is what it is. Might put a few spots on them.
Used 2nd time Cal-mag now, PH healthy 8, the new leaves are looking dark green, the old ones “semi rusted” but I left them untached.
For now I think we got rid of the deficiency… P-boost awaiting now for this week and K-boost +CaMg 
Thanks for the help guys, will provide some pictures at the end as well for grattitude
