Round 2: "Name That Deficiency: Rust Edition!"

Hey ya'lls

Hope you all are getting ready to enjoy a wonderful holiday season.

Need a diagnosis on one of my mainliners - started exhibiting these rust spots the past couple of days.

I got some feedback about 2 weeks ago on my plants - they all were exhibiting signs of calmag def. I have since added some cal/mag into their feeding regime. (ph'ed calmag, then full bloom, ph'ed calmag, then bloom again and so on). I've done 3 feedings with the calmag so far.

We've also had a bad gnat problem but have since reduced the effects from picking up some nematodes.

We're in soil, random strains if that helps.

Thanks guys! And let me know if you need any further information.

Still looking mag hungry!

looks to me like lots of lockout and they are hungry.

from my learning I found that many times what the plant needs is already present, just can't use it due to lockout or imbalance. have you tried adding any micros thru a tea or Recharge or something? I found that this was a better solution than dumping more cal mag.

If you have fed real heavy normally, then try flushing it, massive amounts of water till you get at least the size of the pot back in drainage, usually double it. The last bit go with a light nute solution. Little bonus is you dont need to water for a couple extra days.

Just remember....even "if" the problem is fixed, damaged leaves wont recover.

ilovereggae said:

looks to me like lots of lockout and they are hungry.

from my learning I found that many times what the plant needs is already present, just can't use it due to lockout or imbalance. have you tried adding any micros thru a tea or Recharge or something? I found that this was a better solution than dumping more cal mag.

Click to expand...

Lockout is quite possible, I went with a very heavy feed after we exterminated the gnat larve via H202 and nematodes.

I have some EWC on top that has started sprouting some random plants - But I think the H202 may have murdered the micros I got form the EWC. I have some more EWC I can top dress with.

Would the molasses be a good way to reintroduce the micros?

Powertech said:

If you have fed real heavy normally, then try flushing it, massive amounts of water till you get at least the size of the pot back in drainage, usually double it. The last bit go with a light nute solution. Little bonus is you dont need to water for a couple extra days.

Click to expand...

Yeah did go pretty heavy after we killed off the gnats - I thought they would be super hungry. This is the only one to respond poorly though.

So you reccomend a big time flush then maybe some half strength nutes on top? I just watered/fed yesterday - Should I wait until need watering or do this now?

Red Eyed said:

Just remember....even "if" the problem is fixed, damaged leaves wont recover.

Click to expand...

Yeah that is the part that sucks - being 5 weeks into flower I wont have any new leaves to come out. Slightly damaged leaves are better than none, right?

Lagged said:

Lockout is quite possible, I went with a very heavy feed after we exterminated the gnat larve via H202 and nematodes.

I have some EWC on top that has started sprouting some random plants - But I think the H202 may have murdered the micros I got form the EWC. I have some more EWC I can top dress with.

Would the molasses be a good way to reintroduce the micros?

Click to expand...

h202 will definitely kill them. molasses feeds them but is not micros itself. fresh EWC should have some in it though. you are pretty far into flower already though. i usually stop anything like that by week 6 or 7 of flower (2 weeks before chop). you could make a 'tea' out of EWC and some molasses to help speed things up maybe. ill be honest im not sure what your best move is at this point.