rust spots on leaves?

[bubblebagman]

Just like the title says, "rust spots on leaves".....why does this happen. I've never experienced this on my plants before. But some new mothers I started(blue skunk) have rusty coloured spots on the lower leaves....Does anyone know what is causing this ?

 

[greenmonkey]

sounds like nutrient problem. heres a link that should help
Cannabis Plant and Pest Problem Solver - Pictorial

 

[bubblebagman]

thanks bro....+rep for the help man. It suggests calcium deficiencies. I guess I know what to treat it for now.

 

[Bee23]

Was it a boron defficientcy?

 

[bubblebagman]

No, It actually ended up being a ph issue... Thanks for the concern though bee23

 

[theganjaguru]

What is your ph balance

 

[bubblebagman]

it had built up to 8.1......and is now safely down at 6.1......I didnt realize but one of my supplements was makin my water alkaline.

 

[theganjaguru]

I keep mine at 6.2 to 6.3.

When do you check your ph, right after or an hour after, you add your nutes.

 

[bubblebagman]

I have a PH pen so its easy for me to check...the batts were dead though, thats why I had my issue. To answer your question ganjaguru.....I let my res sit for 24 hrs before I add my nutes, it helps evaporate some of the stuff in the water like chlorine. I check my PH after I add my nutes, and right before I feed my ladies.

 

[theganjaguru]

I recommend using reverse osmosis. So you don't have to wait 24 hours.

 

[bubblebagman]

yeah, thats still an extra expense and not 1 that I consider a necessity. I'm patient lol ...Besides my water here is good 100-130 ppm, and thats before I let it sit.