Hey guys this is my first post, I have learned a lot reading over the posts thanks to you. This is about my tenth grow and have had moderate success in the past. Well, here's my problem. I have been having leaf spots that have already destroyed three of my precious ladies (over 50% damage to leafs so I tossed em out). Now, I keeep bouncing back and forth as to what is wrong (fungus, spider mites, or nutrients ) and think I will go crazy soon!

At first I thought it might be nutrient/salt build up related so I did a water flush to no avail. I then thought it was mold, or fungus type disease so I began using Serenade spray. Tried that for a couple of weeks with no response. Then after looking at the underside of the leaf with a 30x microscope I noticed these clear transluscent round structures, just where the the leaf spots are. I did some research and found that spider mites lay eggs that look similiar to this so I have been blasting my ladies with neem oil. However I haven't seen the critters, just the "egg like" strutures as mentioned. Any help greatly appreciated!

Here's my setup:
-3 400watt MH to HPS converted bulbs burning over 20 ladies (now 17 )
- using FoxFarm nutrients (Big Grow, Bloom, and Tiger
- Just went to 12/12 eight days ago (haven't switched to tiger nut yet; have been using dosing schedule as outlined by foxfarm)
- growing "feminized" plants from seed
- Don't ph balance solutions, never had problems with tap water (maybe until now?!)
- using Promix soil
- Humidity has been low around 30-40%, temps have been 70-85
bonghitter Reviewed by bonghitter on . Leaf spotting problem Hey guys this is my first post, I have learned a lot reading over the posts thanks to you. This is about my tenth grow and have had moderate success in the past. Well, here's my problem. I have been having leaf spots that have already destroyed three of my precious ladies (over 50% damage to leafs so I tossed em out). Now, I keeep bouncing back and forth as to what is wrong (fungus, spider mites, or nutrients ) and think I will go crazy soon! At first I thought it might be nutrient/salt Rating: 5