Bugs or Deficincies?

So while I’m dealing with my Blueberry Clone A and its problems, I noticed Clone B has some spots on a few of her leaves. I took a pic and was wondering if anyone knew if this was bugs, or possibly just a deficiency?

It appears to be slight Calcium uptake issues.

Calcium, Potassium , Magnesium, and Iron, all react to each other. It could be lacking enough Calcium, or possibly lockout by an excess of the others, or lastly pH lockout.

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I was thinking I needed to add more cal mag, so I guess I’ll do that!

Hold on Ktreez420. I’m going to go check on something for ya


This is why I found out
@Aquaponic_Dumme was correct

Ca)lcium (soil: 6.5-7; hydro-soilless: 5-6)
Marijuana Calcium Deficiency
Photo Cred: TheNug.com
Calcium is an immobile macronutrient that tends to concentrate in the roots and older growth since it moves slowly within the plant. Ca enhances the uptake of Potassium in the roots and also contributes to root growth and cell division.

If you begin to notice traces of yellow/brown spots with distinct brown outlined edges and new growth then you have a girl on your hands that is in need of some Calcium. Too much Calcium at a young age in this case does not build healthy bones, but instead stunts a young seedling’s growth. So remember moderation is the best rule of thumb.

Solution to fixing a Calcium deficiency
To fix a calcium deficiency you can treat by foliar feeding with one teaspoon of dolomite lime or Garden lime per quart of water, Or Any Chemical/Organic nutrients that have Calcium in them will fix a Calcium deficiency. (Only mixing at ½ strength when using chemical nutrients or it will cause nutrient burn!)
Or you can take crushed up dolomite lime or garden lime in a gallon of water and water it in the soil. 1 to 2 teaspoons per gallon of water, which will be slow acting. Garden Gypsum, which is medium absorption. Limestone, which is medium absorption, Rock Phosphate and Animal wastes which are both medium/slow absorption. Note: Caution when using gypsum to an already acid soil (pH that is less than 5.5) can have a very bad effect on different types of plants by effecting the absorption of soil aluminum, which is poison to plant roots.

Now if you added to much chemical nutrients and or organics, (which is hard to burn your plants when using organics) you need to flush the soil with plain water. You need to use 2 times as much water as the size of the pot, for example: If you have a 5 gallon pot and need to flush it, you need to use 10 gallons of water to rinse out the soil good enough to get rid of excessive nutrients.

Hope this helps



Thank you will, I really appreciate you taking the time to find that and show me!

Please repost picture in white light. I just noticed you posted in 2 different threads. I’m wondering if it’s the same plant?

This is Calcium deficiency…

This is Spider Mites…

Spider Mites would explain why half the plant is still appears healthy, and have the same symptoms described in the other thread.

Here are two more pic’s of mites

@ktreez420. I have fought with these dam thing for a long and over time and I can tell you that alcohol the strongest the better
Mixed 50/50 with water now how easy is that. This kills on contact.

Hope this helps


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No these are two different plants. Two different threads.
This plant has the spotting going on. The other thread is root rot or bud rot?
How can I tell if it’s spider mites or just calcium?

Here are 3 leaves from the plant in question.

Bugs, or deficiency?

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Ah, good. These new pics are Calcium.

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Ok good, now I can breathe!
Would you recommend adding more cal mag for the next water change?
Or what would you guys recommend? @latewood

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I lot of guys would say Cal/Mag, but I never liked the idea of introducing chemicals that she’s not asking for. I’d use just Gypsum

Where would I find that? And if I did get it, how exactly would I use it?

I take a cup of water from the reservoir, mix it in that, then dump it back in the reservoir. Foliar spray would work too. A little goes a long way. This would last you a long time.

I’ve really wanted to try foliar spray lately, but I really DONT want to !@#$ anything up from doing it.
I just worry I would mix the batch too strong, or spray too much, or somehow ruin a good thing haha. And advice or tips for me @Aquaponic_Dumme?

Calcium is immobile within the plant. The damaged leaves are permanent.

Lights off, and go slow. You can always add more.

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