Sick plant - Marks on leaves with small black dots

[Anna90]

Hi,

I’m a new grower.
Growing in expanded clay, drip irrigation, cfl’s.

I have noticed some strange marks on my leaves. It looks like splash marks where leaves are going translucent and small black micro dots on the leaves. On closer inspection it seems the micro dots can’t be rubbed off (it’s apart of the leaf not something on it)

Has as anyone possibly come accross something like this?
Thank you

[Colombo]

What does the entire plant look like? Water ,Nutes, and Light affect how each other performs, the latter two causing the most issues! As far as the pictures the white spots look like cell breakdown and the black dots look like mold spores. But a photo of the plant would give a better description of the problem.

[normanthyra]

Hi,

I’m a new grower.
Growing in expanded clay, drip irrigation, cfl’s.

I have noticed some strange marks on my leaves. It looks like splash marks where leaves are going translucent and small black micro dots on the leaves. On closer inspection it seems the micro dots can’t be rubbed off (it’s apart of the leaf not something on it)

Has as anyone possibly come accross something like this?
Thank you

Your plant doesn't look good. This may be due to a lack of magnesium. However, the reason for this may be too much temperature when growing in your tent / room.

[Weed Pharma]

My take on this is that it's two issues.
1) pH (white part) and Calcium deficiency (black spots).

It's unlikely pests do to its symmetrical damage- but worth checking the back of the leaves.

The curled leaves points towards Calcium as well- the plant's top is growing faster than the roots. This will take care of itself.

[normanthyra]

Anna90, how are things with your plant? Maybe something has changed or have you tried to change something in the process of growing? Any results? How are things going now?