Brown Patches on Older Leaves
Terra_Farmastarted grow question 6y ago
Slight yellowing and brown mottled patches.
Only on one of the two plants and they’ve been treated and fed exactly the same.
On some older fan leaves, no signs of anything on new growth.
Anything to worry about at this stage? Maybe just a sensitive pheno?
Any advice appreciated.
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GMSgrowsanswered grow question 6y ago
Fabric planters when they fill with roots become harder to get your water through the entire root system. Your water, feed starts pouring out the sides before reaching the bottom of the planter. The dry areas in your root system leaves dry areas in your leaves, usually half way to near the top of the plant.
Before adding more of anything you should always Check your runoff ph and ec levels to make sure everything is in check. Just blindly adding more without knowing whats really going on is how people fail at a good crop. Cheers friend
KidAlienGrowsanswered grow question 6y ago
Definitely calcium deficiency bro. I had the same then after correcting with some nutes the newer foliage came out fine. I’d keep an eye on the newer leaves.
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Experimentgreenanswered grow question 6y ago
Hello
It looks like the speckled look from a calcium deficiency and with the one leaf showing it dominantly on a lower leaf at the tip where the light hits it is decent indication. I think every plant varies on how calmag hungry they are, so possibly just increase the amount for the one plant having the spots.
You could try to let the ph go through the 6.2-6.5 range not always at just 6.2 and then maybe raise to 1 tsp per gallon and see if it stops spreading. I think the plant still has awhile to go so its definitely worth solving the problem.
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