Strange Brownish areas on leaves....

#1 09-01-2009, 11:44 AM

Guys,

This weird problem appeared a few days ago with my seedlings, it doesnt look like a nut problem as this only happened on 1 plant and only two leaves are being affected.

let me know what you think.

here are the pics

Doctor Cannabis · #2 09-01-2009, 02:22 PM

Light burn or nute lock out due to high/low pH.

Check your soil and watering solution pH.

What lights are you using and how close are they? Are there more than 75W/sqr foot? Light burn (not the same as heat burn) is caused by the infrared spectrum of most light sources and occurs more often with indicas.

doc111 · #3 09-01-2009, 02:28 PM

Quote:

Originally Posted by tarrows

Guys,

This weird problem appeared a few days ago with my seedlings, it doesnt look like a nut problem as this only happened on 1 plant and only two leaves are being affected.

let me know what you think.

here are the pics

Yeah check that pH. It looks like you are growing in rockwool so it needs to be low...like 5.8 or so. That's where I'd start.

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