First grow problems! deficiency/pH?

SonsOfAvery · Sep 22, 2017

Hi people, first off I appreciate any help I get here!
I'm growing 4 different strains, I've just started week 2 of flower and my White Widow has started showing some problems, brown spots have started appearing on the leaves and some of them are starting to get crispy!!!
To be honest it had problems from the start :-/ stunted growth, 3 shoots per node with tiny fan leaves of different colours, but I decided to keep it going.
I looked online and came to the conclusion it was a cal deficiency (?)
So I've flushed it today with ph6.5 water.
After 6litre I checked the run off and it was 5.1?
I'm totally stumped now. Is it worth keeping? And if so how can I fix this?

This is my first grow and here's my set up.
Indoor, tent 4x4x7.
LEDs at 16in from canopy on 12/12.
Mixture of potting soil, coco and perlite (40/40/20% ratio roughly) with added mycorrhizal.
The last pic is my other plants just to show I'm not killing them all haha.

Dynamo626 · Sep 22, 2017

any pics of the entire plant?
make sure your ph pen is calibrated, keep flushing until ph is closer to 5.5
don't flush with just ph ro water. flush with your nutrient solution ph to 6.5.
if your runoff ph is 5.1 that is probably your problem, seeing other wiers things to that's why I asked for entire plant pic. think I see lots of tiny white dots could be bug damage or starts of pm. whats your rh?

SonsOfAvery · Sep 23, 2017

Dynamo626 said:
any pics of the entire plant?
make sure your ph pen is calibrated, keep flushing until ph is closer to 5.5
don't flush with just ph ro water. flush with your nutrient solution ph to 6.5.
if your runoff ph is 5.1 that is probably your problem, seeing other wiers things to that's why I asked for entire plant pic. think I see lots of tiny white dots could be bug damage or starts of pm. whats your rh?

Thanks for the info, I've flushed with nutrient solution and I'm getting pH 5.4 now. So it's getting better.
I unfortunately don't have a full plant pic sorry, as you can tell from the pics, my phone camera is broke and has now stopped working completely :-/
My humidity is sitting quite high, and I just can't keep it down below 65% at lights off.

Dynamo626 · Sep 23, 2017

do you have an extraction fan? usually with a strong extraction fan you can keep the area near the same humidity as the room the tent is in. if the rh of the room is high the best thing to do is buy a room dehumidifier. another option is to do some deleafing. one reason humidity can be hard to control is the plants resperate through there leaves. remember though the leaves are what feed the plant light so deleaf from the bottom up.

SonsOfAvery · Sep 23, 2017

I have defoliated a bit during veg, but with them now being week 2 of flower, I don't want to mess with them too much.
And yeh, I'm running a 4" extraction through a carbon Scrubber, and a 4" intake as well. Which keeps the tent replenished well enough I think, the temps are always stable. So I think I'll have to look at reducing rh in the room/my home.
Thanks again for the help.

Mo9000 · Sep 23, 2017

Hey man, i might be wrong here but from what i can see you may have a problem with spider mites, or some other kind of tiny pests, its always kind of difficult to see in photos but are there small white spots on any of the leaves? But i do see in the second last pic you posted that one of the leaflets on your plant has a waxy, shiney look to it. This is a very common symptom of pests invading your plants, which i have had a lot of experiance with growing outdoors.

Buba Blend · Sep 24, 2017

SonsOfAvery said:
Hi people, first off I appreciate any help I get here!
I'm growing 4 different strains, I've just started week 2 of flower and my White Widow has started showing some problems, brown spots have started appearing on the leaves and some of them are starting to get crispy!!!
To be honest it had problems from the start :-/ stunted growth, 3 shoots per node with tiny fan leaves of different colours, but I decided to keep it going.
I looked online and came to the conclusion it was a cal deficiency (?)
So I've flushed it today with ph6.5 water.
After 6litre I checked the run off and it was 5.1?
I'm totally stumped now. Is it worth keeping? And if so how can I fix this?

This is my first grow and here's my set up.
Indoor, tent 4x4x7.
LEDs at 16in from canopy on 12/12.
Mixture of potting soil, coco and perlite (40/40/20% ratio roughly) with added mycorrhizal.
The last pic is my other plants just to show I'm not killing them all haha.View attachment 4014502 View attachment 4014503 View attachment 4014505 View attachment 4014510 View attachment 4014504 View attachment 4014508

Looks like at least 3 different things. Maybe bugs by some of the flecks seen on the leaves.
The dead brown spots called necrotic spots are likely from something else, possibly a deficiency or a lock out IDK.
I stopped by mainly to mention your leaves that have a split color with green on one side and yellow on the other, ignore them, they are not a problem, I think there is a name for it I don't remember. I have seen it many times, it is not a deficiency or anything you can control and will not hurt the plant.

xtsho · Sep 24, 2017

Buba Blend said:
Looks like at least 3 different things. Maybe bugs by some of the flecks seen on the leaves.
The dead brown spots called necrotic spots are likely from something else, possibly a deficiency or a lock out IDK.
I stopped by mainly to mention your leaves that have a split color with green on one side and yellow on the other, ignore them, they are not a problem, I think there is a name for it I don't remember. I have seen it many times, it is not a deficiency or anything you can control and will not hurt the plant.

It's called variegation. It's common and poses no problem.

SonsOfAvery · Sep 24, 2017

Thanks for the responses. I'm thinking of maybe removing it from my grow space? What do you think?
it's the least we'll grown one I have this run, and my other 3 all look fine right now. I wouldn't want to keep it around and have it effect my other plants.

Mo9000 · Sep 25, 2017

SonsOfAvery said:
Thanks for the responses. I'm thinking of maybe removing it from my grow space? What do you think?
it's the least we'll grown one I have this run, and my other 3 all look fine right now. I wouldn't want to keep it around and have it effect my other plants.

Yeah man, if you feel it may compromise the health of your other plants than removong it from the area is probably the right call.

First grow problems! deficiency/pH?

SonsOfAvery

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Dynamo626

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SonsOfAvery

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Dynamo626

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SonsOfAvery

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Mo9000

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Buba Blend

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xtsho

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SonsOfAvery

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Mo9000

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