Spotted leaves

last time I watered them, I used tap instead of bottled water a few days ago. Now most of the leaves are are spotting on my 2 biggest plants. Is it a sign on nutes problem or bugs? I'm in week 5 of flowering. Now I've seen this happen before when my foliar spray was too strong. I don't generally use tap water. And when I do I usually leave the cap of my bottle for a few days. All the spotted leaves have the same pattern on them. And only the ones exposed to light have spotting.

jayskool said:

last time I watered them, I used tap instead of bottled water a few days ago. Now most of the leaves are are spotting on my 2 biggest plants. Is it a sign on nutes problem or bugs? I'm in week 5 of flowering. Now I've seen this happen before when my foliar spray was too strong. I don't generally use tap water. And when I do I usually leave the cap of my bottle for a few days. All the spotted leaves have the same pattern on them. And only the ones exposed to light have spotting.

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that looks like spider mite infestation

check this. Good luck!!

jayskool said:

last time I watered them, I used tap instead of bottled water a few days ago. Now most of the leaves are are spotting on my 2 biggest plants. Is it a sign on nutes problem or bugs? I'm in week 5 of flowering. Now I've seen this happen before when my foliar spray was too strong. I don't generally use tap water. And when I do I usually leave the cap of my bottle for a few days. All the spotted leaves have the same pattern on them. And only the ones exposed to light have spotting.

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also it looks. Like some calcium. Deficiency use calmag

Take a pic under your leaf, might spot a few black spots.

Extrome said:

Take a pic under your leaf, might spot a few black spots.

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There's no black spots.

hard to tell with color of pic if mites or calcium deficiency http://www.growweedeasy.com/calcium-deficiency-cannabis

The spots are most clustered near the leaf veins and mostly circular in shape. Whilst cal def has spots, it's also a bit splotchy and randomly all over the place.

Any way you can snap a pic with a fluorescent mode on? So it's blue/white light instead of bright yellow.

Extrome said:

The spots are most clustered near the leaf veins and mostly circular in shape. Whilst cal def has spots, it's also a bit splotchy and randomly all over the place.

Any way you can snap a pic with a fluorescent mode on? So it's blue/white light instead of bright yellow.

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I will when I get back. It seems like it's moving up the plant slowly. And my younger plant is showing no sign. The spotting is along the veins of the leaves. I see no black spots or eggs. There's no residue when I rub the leaves. The pattern is on most of the fan leaves. The fan leaves that get no light under the canopy have no spots.

please take pics in white light. color is important and can't determine color in sodium light. any time I've seen something like that it was magnesium deficiency. small, golden yellow spotting that becomes very numerous and starts about the middle of the plant and spreads. right now that looks like the problem, especially if you don't see bugs at all. also, it would be helpful if you could describe the grow more, like soil or hydro, air temps, what fert are you using and how often, what soil are you using if any... etc.

Calmag

Be patient. Here are pics. There's no mites. It's a potassium deficiency.

I'm not surprised. it looks like mg def, but not exactly.

jayskool said:

I will when I get back. It seems like it's moving up the plant slowly. And my younger plant is showing no sign. The spotting is along the veins of the leaves. I see no black spots or eggs. There's no residue when I rub the leaves. The pattern is on most of the fan leaves. The fan leaves that get no light under the canopy have no spots.

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how do u see that? With the naked eye or u have jewelers Lupe or magnifying glass?

naked eye in 54321.

I added an extra dose of cal-mag when I fed them yesterday.i made sure the ppm level was a little bit over 700 and ph at 6.0. I have a tendency to over feed, so I was being too over causious.

jayskool said:

Be patient. Here are pics. There's no mites. It's a potassium deficiency.

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Still looks like aCalcium def to me....




Cal def....

R1b3n4 said:

Still looks like aCalcium def to me....

Cal def....

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I feed them a lil bit more of cal-mag.

The stems are a tadd red. That could be a bit high on the mag.

It's a potassium deficiency defiantly. And it's natural for them to turn color. The bud is going to be mainly pink and purple.