socialgrow
New member
Hi everyone, first time poster on IC Mag.
Help! My day 70 ILGM Jack Herer Auto(on the left) is having some issues!! It’s run in 10 gal organic soil (alongside a Green Crack Auto) w worms, top dressed regularly primarily with BAS worm castings. I use happy frog all purpose 6-4-5, rainbow mix bloom, worm castings, and a few different nitrogen sources, including malted barley and oats.
JH just went into flower in the past few days after a long veg. The spots are a few nodes down from the fresh growth. Leaf tips are crispy especially on the spotted leaves; ILGM forum users seem to think crispy JH leaves are unavoidable. I was just out of town and saw more necrosis/leaf drop towards the bottom of the plant than I expected, possibly indicating a P shortage.
Based mostly on these reference images and descriptions, my first impression is either Mg, K, and/or P. It could be a pH issue, as I’ve been using oyster shell (component of BAS Coots minerals) with coir without anything to lower/buffer pH. Calcium should be fine, as I used Coast of Maine lobster compost as a base, the bloom mix has bone meal, I’ve top dressed a good bit of crab & lobster shell, and Coots minerals has calcium.
I just gave it a shot of seaweed, lite calmag, ful power, and fish sh!t. I have dolomite I could throw on for Mg, but I don’t wanna further alkalize if that’s my issue.
What do y’all think?
Help! My day 70 ILGM Jack Herer Auto(on the left) is having some issues!! It’s run in 10 gal organic soil (alongside a Green Crack Auto) w worms, top dressed regularly primarily with BAS worm castings. I use happy frog all purpose 6-4-5, rainbow mix bloom, worm castings, and a few different nitrogen sources, including malted barley and oats.
JH just went into flower in the past few days after a long veg. The spots are a few nodes down from the fresh growth. Leaf tips are crispy especially on the spotted leaves; ILGM forum users seem to think crispy JH leaves are unavoidable. I was just out of town and saw more necrosis/leaf drop towards the bottom of the plant than I expected, possibly indicating a P shortage.
Based mostly on these reference images and descriptions, my first impression is either Mg, K, and/or P. It could be a pH issue, as I’ve been using oyster shell (component of BAS Coots minerals) with coir without anything to lower/buffer pH. Calcium should be fine, as I used Coast of Maine lobster compost as a base, the bloom mix has bone meal, I’ve top dressed a good bit of crab & lobster shell, and Coots minerals has calcium.
I just gave it a shot of seaweed, lite calmag, ful power, and fish sh!t. I have dolomite I could throw on for Mg, but I don’t wanna further alkalize if that’s my issue.
What do y’all think?
