Beginning signs of Nute Burn?

A

adrenalytic

Active Member
First timer here.

I'm still trying to figure out a good feeding schedule. The plants are 25 days old and these spots just showed up the day after their last feeding. I pH'd and EC'd the feed before and after (runoff) and everything looked within acceptable ranges. So is this related to the feeding or is something else going on? The pics are of two different plants. I am currently growing 3 different strains between 9 plants and I have noticed these signs on most of the plants. These are just the most severe.

 
Bugeye

Bugeye

Well-Known Member
You have healthy plants and those marks are not really concerning. Very common if you are taking your plants in and out or bruising them a bit when you water. The tell tale sign of over feeding is downward clawed leaf tips, yours are flat.
 
Olive Drab Green

Olive Drab Green

Well-Known Member
adrenalytic said:
First timer here.

I'm still trying to figure out a good feeding schedule. The plants are 25 days old and these spots just showed up the day after their last feeding. I pH'd and EC'd the feed before and after (runoff) and everything looked within acceptable ranges. So is this related to the feeding or is something else going on? The pics are of two different plants. I am currently growing 3 different strains between 9 plants and I have noticed these signs on most of the plants. These are just the most severe.

Click to expand...
They might be bug bites. Your plants are otherwise healthy. You should mix neem oil with your next watering.
 
A

adrenalytic

Active Member
Olive Drab Green said:
They might be bug bites. Your plants are otherwise healthy. You should mix neem oil with your next watering.
Click to expand...
I have been searching for any signs of bugs/mites (using a 60x jewelers loupe) and haven't found any yet. Also, it is the dead of winter in my locale (northeastern USA) so bugs are mostly dormant. But this is the first time I've heard of adding neem oil to a feeding and it sounds very intriguing. I will look into it. Thanks for the suggestion.
 
D

domattiz

Member
Those are the beginning signs of Calcium deficiency. Get a Cal-Mag supplement, set your pH to 6,5 and the new growth will be just fine. Everything else looks good
 
A

adrenalytic

Active Member
domattiz said:
Those are the beginning signs of Calcium deficiency. Get a Cal-Mag supplement, set your pH to 6,5 and the new growth will be just fine. Everything else looks good
Click to expand...
Thanks for the tip. So even when growing in Promix HP, you should use cal-mag? Everything I read about it said it was unnecessary but that would explain the yellow spots forming on some of the leaves. I'll pick some up for their next feeding.
 
B

Blitz35

Well-Known Member
Just so you dont get steered down the wrong path...for one, overfeeding is not evident just by clawed leaves..that only says that specifically nitrogen is getting overfed, but there are other elements that can be in abundance, and they won't make the leaves claw!
Secondly, ignore the calcium comment, obviously a newbie...your medium contains lime already, and your new growth looks just fine..calcium deficiency is very easy to see, and yours is not it! Ph should also be kept closer to 6 with pro mix..never above 6.3..it's sphagnum peat moss, not soil. I agree with the above post...nothing to worry of, it happens at times, leaves get dinged up and can get random scuffs/markings on them.
 
A

adrenalytic

Active Member
Blitz35 said:
Just so you dont get steered down the wrong path...for one, overfeeding is not evident just by clawed leaves..that only says that specifically nitrogen is getting overfed, but there are other elements that can be in abundance, and they won't make the leaves claw!
Secondly, ignore the calcium comment, obviously a newbie...your medium contains lime already, and your new growth looks just fine..calcium deficiency is very easy to see, and yours is not it! Ph should also be kept closer to 6 with pro mix..never above 6.3..it's sphagnum peat moss, not soil. I agree with the above post...nothing to worry of, it happens at times, leaves get dinged up and can get random scuffs/markings on them.
Click to expand...
Thanks. Great insight. I've actually been pH'ing too high I think. It's usually around 6.1-6.3 but I have also fed up to 6.5. I will avoid that on the next feeding and pH it down properly.

Should I flush in between feedings or only when I suspect a problem? I have heard conflicting tek on this. Thanks again.
 
B

Blitz35

Well-Known Member
adrenalytic said:
Thanks. Great insight. I've actually been pH'ing too high I think. It's usually around 6.1-6.3 but I have also fed up to 6.5. I will avoid that on the next feeding and pH it down properly.

Should I flush in between feedings or only when I suspect a problem? I have heard conflicting tek on this. Thanks again.
Click to expand...
No, you absolutely do not flush between feedings!!! I personally never flush as there is no need for it if feedings are done properly..it's for those that feed without knowledge and at some point they start getting issues, or their soil is too hot at the end and they want to flush all the excess that was dumped in during the grow. In other words, only if problems arise and it has to do with overfeeding, should one flush.
 
A

adrenalytic

Active Member
Blitz35 said:
No, you absolutely do not flush between feedings!!! I personally never flush as there is no need for it if feedings are done properly..it's for those that feed without knowledge and at some point they start getting issues, or their soil is too hot at the end and they want to flush all the excess that was dumped in during the grow. In other words, only if problems arise and it has to do with overfeeding, should one flush.
Click to expand...
Cool. Thanks. My ronoff pHes around 5.8 - 5.9 usually so I think I'm good.
 
You must log in or register to reply here.
Top