Spots and Yellowing Help

balactus

Well-Known Member
First time full grow. Long time member. Have been having this on-going issue I am not sure how to resolve.

Strain: Moby Dick XXL Autoflower
Day from seed: 60
I want to say maybe almost a month into flower. Shes still growing but the initial stretch has slowed.
I attribute the otherwise slow growth to environmental as it is in a garage and I live in the desert where temps have been too inconsistent. Issue during our cold months.
Water Sched: When dry, unfortunately I haven't kept an accurate journal as it was just a trial to start
Medium: Fox Farm Ocean Forest
- Down to Earth 4-4-4
- Happy Tree Frog Fruit and Flower
- Botanica Cal/Mag
Light Sched: 18/6 still although considering going 20/4
Water was distilled but switched to PHed tap water thats gone through a filter on outdoor hose which was then left out for a couple days before use.

Please excuse the undergrowth, did not do any defoliating or topping because of differing opinions on auto grows so I kept it au natural this time around. There are fans blowing on both sides of her. A lot of the mistakes I've made this grow that I've determined, I already plan to correct next grow so for now trying to survive this one.

Spots on leaves appear to be on fan leaves only thus far and mostly on the older leaves. But the most damaging are the ones pictured.

IMG_6805.jpgIMG_6806.jpgIMG_6807.jpgIMG_6808.jpgIMG_6809.jpg
 

balactus

Well-Known Member
That is possibly leaf septoria with those spots.
Ah jeez it sounds very similar to a Ca deficiency. I was hoping it was something like that but last watering I checked PH and it came out similar to water putting in. Do you have any experience with that?
 

balactus

Well-Known Member
You need airflow. Intake and a fan with proper humidity
Probably right. I don't have oscillating. I've got 2 standard clip fans. One pointed at top cola and the other cross blowing from the bottom. I think I'll need to bite the bullet and just defoliate at the very least the affected leaves and some of the bottom growth because air is just not moving as well unless I blasted at the high setting but I don't think she will like that.
 

etruthfx

Well-Known Member
Probably right. I don't have oscillating. I've got 2 standard clip fans. One pointed at top cola and the other cross blowing from the bottom. I think I'll need to bite the bullet and just defoliate at the very least the affected leaves and some of the bottom growth because air is just not moving as well unless I blasted at the high setting but I don't think she will like that.
A lady like that's gonna use up all the co2 in that space in just 1-2 hours
 

balactus

Well-Known Member
A lady like that's gonna use up all the co2 in that space in just 1-2 hours
I have an inline set to high right now so its constantly cycling. Passive intake. Plus the 2 clip fans. At the very least I keep the air circulating. For a 2x4 tent I think that inline is supposed to be more than enough. I keep the clip fans on low only because since they are directly on the plants and on high it will be constantly blowing at them like they are violently swaying in the wind. Unless its supposed to? I know you want the air on them to build strength on stems on top of the pest/fungus control.
 

etruthfx

Well-Known Member
I have an inline set to high right now so its constantly cycling. Passive intake. Plus the 2 clip fans. At the very least I keep the air circulating. For a 2x4 tent I think that inline is supposed to be more than enough. I keep the clip fans on low only because since they are directly on the plants and on high it will be constantly blowing at them like they are violently swaying in the wind. Unless its supposed to? I know you want the air on them to build strength on stems on top of the pest/fungus control.
I usually keep the fan on medium not too high but I have never had a plant get damaged from too much wind cause I just angle it so it's indirect but circulates the room. If you got air flow that might not be your prob but it still looks okay. Usually when that happens to the lower leafs its alright to just pluck them. If you see that on fresh growth it's a more serious problem
 
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