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possible defficiency of something?

caveman117

caveman117

Well-Known Member
Hi ive got some plants here that are showing some odd blotchyness/necrotic patches on some lower leaves.
I first noticed it like day 3 after flip to 12/12. At first I thought some kind of insect because the spots were so small it looked like first signs of thrips sort of, which ive had to defeat before.
Its been almost 4 weeks since then and I still can't find any insects of any kind.
It has only happened on lower leaves so far and its the only problem that has really jumpes out at me.
Any advice/ ideas are greatly appreciated, here are some pics of the damage.

Edit* my mix is coast of maine bar harbor blend cut 50/50 with coco then ammended with ewc, blood meal, bone meal, desert bat guano and lime.
 

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mike4c4

mike4c4

Well-Known Member
caveman117 said:
Hi ive got some plants here that are showing some odd blotchyness/necrotic patches on some lower leaves.
I first noticed it like day 3 after flip to 12/12. At first I thought some kind of insect because the spots were so small it looked like first signs of thrips sort of, which ive had to defeat before.
Its been almost 4 weeks since then and I still can't find any insects of any kind.
It has only happened on lower leaves so far and its the only problem that has really jumpes out at me.
Any advice/ ideas are greatly appreciated, here are some pics of the damage.

Edit* my mix is coast of maine bar harbor blend cut 50/50 with coco then ammended with ewc, blood meal, bone meal, desert bat guano and lime.
Click to expand...
Is that the only leaves affected? looks like nutes got splashed on it when watering.
 
caveman117

caveman117

Well-Known Member
No those aren't the only leaves affected it started on lower leaves and then very slowly got a bit worse when they hit like week 2.5 ish after 12/12.
Still only on low leaves just still slowly getting worse on the leaves already affected and showing less noticeable smaller areas on other lower leaves but you have to look for them.
 
_MrBelvedere_

_MrBelvedere_

Well-Known Member
Your medium is pure coir. Your problems are just beginning. Remix the coir so it is 50/50 coir and perlite. Then transplant into that medium and you will have great drainage and aeration to your roots
 
caveman117

caveman117

Well-Known Member
My mix isnt pure coir...the bar harbor blend is peat based and has no coir in it. The only coir it has in it is what I put there and I still have to water every 2-3 days with a layer of perlite In the bottom of the pot.
I'll try adding more perlite to a couple clones in the next transplant but I think I'll probably have to water every day.

As for them looking hungry it is probably becAuse when they were in veg they were feeding off of just the soil mix because I didnt trust the bottle of veg nutes I had because it wasalmost a year old and it smelled funny. So they didnt get nutes till last week of veg and these firstfew weeks of flower
 
caveman117

caveman117

Well-Known Member
Just had a thought, the spots on the leaves that are affected feel very dry and crumbly/flakey. Could it be caused by my oscillating fans blowing on them? The fans blow on 1-2 out of 3 setting over the whole plants.
 
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