Rust patches

[Bucky008]

I’ve had this issue with all my grows. I start to notice it right from seedling. Last feed was 350ppm 3 part fert with ph 6.5. Any help would be great.

 

[Emilya Green]

I think it looks like a magnesium deficiency and that you need to add some calmag to your feeding. I bet this stops the problem from progressing. The damaged areas will not repair all the way, but you can stop it from spreading.

 

[Chris Scorpio]

Ditto

Is that soil or coco

 

[Bucky008]

Awesome thanks. Would I add cal mag every feeding? I gave one feeding of cal mag a couple weeks ago.

 

[Bucky008]

Soil grow.

 

[Emilya Green]

Awesome thanks. Would I add cal mag every feeding? I gave one feeding of cal mag a couple weeks ago.

Every plant is different. Some will need it in the tent, some won't. If you run LED, you will tend to need it more than someone who doesnt. Sometimes a light feeding will work, sometimes it takes more. Sometimes it works adding it to the every other time you water with nutes, others find they need to give it with every watering. My experience is that once a plant shows it is hungry for magnesium, it continues that need for the rest of the grow.

 

[Bucky008]

Ok I’m vegging under 400w t5 at the moment and will be switching to hps after 4 weeks. I’ll start adding cal/mag during my weekly feed. Thanks for your help.

 

[Bucky008]

Will my purple stalk and stems turn back green after fixing my mag problems?

 

[Emilya Green]

Will my purple stalk and stems turn back green after fixing my mag problems?

probably... but its been my experience that once a plant shows it is magnesium hungry in a particular environment, it is always going to be extra hungry for magnesium. You can't usually give calmag a couple of times to clear up the problem, you have to keep giving it to that plant all through the grow.

 

[Bucky008]

Right on I gave a feed of epsom salt and am giving cal mag with feedings. The rust spots have stopped spreading but stalk is still purple.

 

[Bucky008]

Well I seem to have taken care of my mag issue but now I have some new rusty issue. I’m a little nervous that it is fungus as my room gets pretty cool over night with humidity getting close to 70%. I’ve read that you can rub a fungus and it Will get on your fingers, this isn’t the case in situation. Any help? I have a fan in moving air but nothing exchanging or scrubbing yet. 3weeks into flower.

 

[Bucky008]

Also I haven’t flushed these plants yet and have upped my ppm to 850 last feed

 

[Bucky008]

Here are a couple top shots you can see the spots