Can anyone help

[Taktookato]

Hello
I’m working with 600hps lamps
Today I saw these yellow blisters on my plants. can anyone help me with this.
tnx

 

[oldfogey8]

Maybe spider mites? Check in the under side of the leaves for small dark spots moving around.

 

[2RedEyes]

If they are spider mites, you may need magnification to see them...

 

[stinkyattic]

Agreed that does look like mites; if your eyesight is decent, you can see the eggs under the damaged leaves, they look like tiny somewhat translucent tan spheres. Even your camera zoom function will help see them. I hope you don't have The Plague... :/

 

[Taktookato]

What can I do for them

 

[oldfogey8]

Another member on here recommended Dr Zymes to me and it works well. There are quite a few insecticides, both organic and not-so-organic, available. You may need to use more than one as spider mites seem to become resistant to some treatments. I have used Mighty Wash, SNS 219, permethrin and some other stuff I can’t remember now. Neem oil is supposed to be bad for plants as it clogs their stoma(from what I have read) but I have used that too. You will need to spray the plants every few days with whatever you wind up using. Mites bite...

 

[stinkyattic]

Confirm them first. Because the solutions are varying degrees of expensive and toxic and not to be undertaken lightly

 

[Chriswhit123]

if your using RO water and your fertilizer doesn't have cal-mag in it you'll get yellow spots that will grow and turn rusty brown on older growth starting near the bottom

 

[QBCrocket]

if you spray water with a spray bottle you can sometimes see the webs if its spider mite