Rust spots on fan leaves

[Markymark123]

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]

Anything, ladies and gentleman?

 

[Flexnerb]

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]

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]

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

 

[growsince79]

Anything, ladies and gentleman?

Looks like bugs.