Problem with plants in flowering

[MsBBB]

Can you see the light parts (burn) on the leaves?



Okay, I was going to try and cover this up, but after thinking about it I know that I should put it out there so that I can learn from my mistakes. Besides, who am I trying to fool, I have pretty broad shoulders and I can take criticism fairly well.

I lost a lot of the bottom leaves in addition to the burnt and crispy top leaves. I know that I messed up big time; I’m just not sure what I did to have caused this.

Possibilities:

1. I think it is light burn; I was using CFLs for vegging and for the first week of flowering. Then I switched over to (2) 400 watt HPS for two plants. I think that they were too close and new to the light and were burned badly.
2. When I repotted I added a Nirvana Flowering Tab to test how they would work. They are not supposed to burn. I have not added any other nutes, just a little Epsom salts trying to correct my mistake.
3. I may not have watered as much as I should have when I started flowering, but now I am watering more. I have a big fan on the plants to help keep the heat of the lamps from burning them more.

What went wrong, let me have it, what could I have done based on the info that I provided? Thanks

 

[SCCA]

it really looks like lumen burn. is it only showing up on the upper leaves that are facing the light? are the leaves on the outside and in the under canopy effected? remove any heavily damaged leaves, they are a hot bed for diseases and pests.

 

[ganjaluva2009]

I agree with SCCA...i personally have dealt with light burn before....when u have hps that arent air cooled, it happens...no biggie...just correct and move on...they will be fine...like scca also stated, remove the badly burnt leaves.........and its no biggie and i dont wanna seem anal or anything, but it looks as if there is a wee bit of nute burn on some of the tips....nothing major at all...and correct me if im seeing shit...lol...just something to keep in mind and look for so it doesnt advance....hope this helps a little...ganja

 

[MsBBB]

it really looks like lumen burn. is it only showing up on the upper leaves that are facing the light? are the leaves on the outside and in the under canopy effected? remove any heavily damaged leaves, they are a hot bed for diseases and pests.

Thanks for the response - That's what I think and want it to be, the lights burn them. Yep, it is mainly on the tops. I added the tomato cages last weekend so that I could tie and reroute the tops to keep them from the light. One of the tallest got so burnt that I snipped it off and smoked it, drying it out in the microwave. It was some harsh smoke but I could tell I had a slight buzz. I don't want any diseases or pests, especially with 9 seven week old clones, and 9 new cuttings trying to root.

 

[MsBBB]

I agree with SCCA...i personally have dealt with light burn before....when u have hps that arent air cooled, it happens...no biggie...just correct and move on...they will be fine...like scca also stated, remove the badly burnt leaves.........and its no biggie and i dont wanna seem anal or anything, but it looks as if there is a wee bit of nute burn on some of the tips....nothing major at all...and correct me if im seeing shit...lol...just something to keep in mind and look for so it doesnt advance....hope this helps a little...ganja

Thanks for the diagnoses - Yeah, and there could be some nute burn, I am sort of working on that. I do have a big fan on them to help blow and circulate some of the heat. No need to correct you, I am the one needing the help and I appreciate your comments.

 

[SCCA]

are your lights hooded or are you running bare bulb?

 

[MsBBB]

are your lights hooded or are you running bare bulb?

No my lights are not enclosed, but they have reflectors with the bare bulbs beaming down on the plants...

 

[SCCA]

be sure to double check your grow space for hot spots from the light. i have to watch the plants under one of our MH lights cause the hood tends to cause burns in one part f the canopy.

 

[MsBBB]

be sure to double check your grow space for hot spots from the light. i have to watch the plants under one of our MH lights cause the hood tends to cause burns in one part f the canopy.

I will keep a watch out for hot spots. I rotate the pots daily (a half turn), and then weekly I exchange/rotate their space. Don't know if that helps but it is a part of my growing ritual.

 

[SCCA]

rotating and shuffling are a good practice to get the most out of plants in a small space with limited light. in larger rooms it becomes impractical and growers focus on developing a denser, more even canopy.