Rust spots on fan leaves

Markymark123 · Aug 19, 2020

Hi all,

I’m getting fairly close to harvest but have had these rust spots show up. I flushed a little yesterday but it looks worse today. Room 25 C during the day, 18 or so at night. Around 55 humidity. Soil PH around 7.From what I’ve read it may be a calcium deficiency. Any body with some experience to weigh in?? Thanks guys!!!

Markymark123 · Aug 19, 2020

Anything, ladies and gentleman?

Flexnerb · Aug 19, 2020

Check the undersides of the leaf. Make sure there isnt any bugs. Yellowing intervienally id like to know i thought cal was immobile and when you get immobile def its yellowing on the esges of the leaf starting at the tips. I can wait to see what others say

Markymark123 · Aug 19, 2020

Flexnerb said:
Check the undersides of the leaf. Make sure there isnt any bugs. Yellowing intervienally id like to know i thought cal was immobile and when you get immobile def its yellowing on the esges of the leaf starting at the tips. I can wait to see what others say

From the underside it looks in the veins more. That is all I can see, it’s an indoor grow. So bugs aren’t quite as likely but worth a check for sure. Thank you!

growsince79 · Sep 24, 2021

Cocoloco uses dry amendments pre mixed. Runoff from new bags are about 3000ppm. Plants can starve to death when it gets below 1500ppm

growsince79 · Sep 24, 2021

Markymark123 said:
Anything, ladies and gentleman?

Looks like bugs.

Rust spots on fan leaves

Rust spots on fan leaves

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