Unfamiliar leaf damage

[SNAX]

Hello! So I'm growing indoors in 15 gallon pots with royal gold tupur coco medium and I have leaf damage that is unfamiliar to me and km having a hard time pinning it down. What you are looking at in the pics are the leaves with yellowish dead spots on the edges. Help?

 

[Jack og]

Let’s see if this chart gets you close to an answer

 

[Jack og]

Magnesium def is showing , epsom salt 1tsp per 1.5 gallons of water, use with every watering for 4 cycles and feed as normal. Watch humidity , lower is better when they recover from a mag deficiencies

 

[Jack og]

Also coco requires cal mag with every water and feeding . If you haven’t had that in the regiment this is probably why you have a deficient mainly in magnesium

 

[SNAX]

Let’s see if this chart gets you close to an answer

Fully aware of this classic, but it didn't really help me out.

 

[SNAX]

Also coco requires cal mag with every water and feeding . If you haven’t had that in the regiment this is probably why you have a deficient mainly in magnesium

Im aware of this and I feed cal mag every time so thats how this problem has become confusing. Its been a week and a half or so since I quit but I was hitting them hard with 3 in1 organicide every 3 days for a total of 5 sprays and Im kinda thinking thats what may have caused this.

 

[Jack og]

Im aware of this and I feed cal mag every time so thats how this problem has become confusing. Its been a week and a half or so since I quit but I was hitting them hard with 3 in1 organicide every 3 days for a total of 5 sprays and Im kinda thinking thats what may have caused this.

Why the heavy insecticide? Any pest issues we need to know about as well?

 

[Cube]

Is there a reason your 15 gallon bags are only half full? Seriously curious not a critisism.

 

[SNAX]

Is there a reason your 15 gallon bags are only half full? Seriously curious not a critisism.

These pots are kinda weird. They are gro pro 15 Gallons but they hold a good amount more than 15. There is one full 2 cu. ft. bag of Royal Gold Tupur in there which is about 13 and that is enough for the size of plants I need.

 

[SNAX]

Why the heavy insecticide? Any pest issues we need to know about as well?

Oops, I had some mites in late veg and in first 2 weeks of flower that needed to be eradicated.