Unidentifiable leaf problem

[MaestroKilly]

I work in a commercial cultivation facility and one of our strains is doing something I’ve never seen before. The leaves have an odd white/gray stippling pattern that looks similar to spider mite damage but there are no webs and nothing is visible to the naked eye or under a scope. The leaves have what appear to be blisters that are visible under a scope. I’ve attached pics of a leaf to the eye and a view through the scope. Any input would be great.

 

[BeanTownFan420]

I work in a commercial cultivation facility and one of our strains is doing something I’ve never seen before. The leaves have an odd white/gray stippling pattern that looks similar to spider mite damage but there are no webs and nothing is visible to the naked eye or under a scope. The leaves have what appear to be blisters that are visible under a scope. I’ve attached pics of a leaf to the eye and a view through the scope. Any input would be great.

Look into Hemp russet mite.Good luck if it is.

 

[Emilya Green]

Look into Hemp russet mite.Good luck if it is.

That just sounds evil... egads

 

[MaestroKilly]

Fortunately, it’s not russet mites. The plants are performing quite well and none of the other strains in the room are affected by this. Thanks for your input.

 

[AdaminCO]

What do the bottom sides of the leaf look like?

 

[MaestroKilly]

What do the bottom sides of the leaf look like?

They look completely normal.

 

[BeanTownFan420]

I feel the small dot are holes from insect bites and the bubbles are the cells trying to heal.

 

[BeanTownFan420]

Or the plants are genetically defective maybe in the cell matrix.

 

[MaestroKilly]

It definitely looks like insect activity but in a room of 750 plants, only 90 are having this issue. I find it hard to believe this wouldn’t spread if it were bugs.

 

[Virgin Ground]

Could be one of the many plant viruses out there. Some plants are more disease resistant.
Are you growing multiple strains or only one?