Brown and Gold spots on plants

M

MrGrowShow

Active Member
Hey there,

I'm using a BC Northern Lights Bloom box, so everything is hydroponic except the mother.

I have two plants on week 6 flower right now from seed. I've noticed one of my plants has leaves that are starting to get goldish/brown spots on it, and the hairs are starting to turn brown (as pics will show).

Is this plant almost ready for harvest? Should I flush it? I just put week 5 nutes in yesterday, so it'd be a shame to dump them, but I'll do it if the time is right.

The water is PH balanced to between 5.5 - 6.5 and roots are big and bushy.

First post here, I apologize if I'm omitting any helpful information. Let me know what you need and I'll edit or reply with what you need.
 

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tropicalcannabispatient

tropicalcannabispatient

Well-Known Member
MrGrowShow said:
Hey there,

I'm using a BC Northern Lights Bloom box, so everything is hydroponic except the mother.

I have two plants on week 5 flower right now from seed. I've noticed one of my plants has leaves that are starting to get goldish/brown spots on it, and the hairs are starting to turn brown (as pics will show).

Is this plant almost ready for harvest? Should I flush it? I just put week 5 nutes in yesterday, so it'd be a shame to dump them, but I'll do it if the time is right.

The water is PH balanced to between 5.5 - 6.5 and roots are big and bushy.

First post here, I apologize if I'm omitting any helpful information. Let me know what you need and I'll edit or reply with what you need.
Click to expand...
looks like n toxicity to me locking out cal/mag, iron ,fe, zn
 
M

MrGrowShow

Active Member
I should also point out that this is only on one plant. I have two plants sharing the reservoir right now, so they've both been getting the same nutrients, yet only one of them seems to have this problem. My BCNL rep says that this one is a little more advanced than the other one and is likely ready to be harvested soon. He suggested I flush it this week (even tomorrow - I just changed the water to week 6 today).
 
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growthspurt

growthspurt

Well-Known Member
When I did hydro I had an issue where one of them had a nute buildup inside of the roots which caused one to get much more than the others. I lifted one and rinsed it to clear out the clot inside the root pile. After that I flushed and added fresh water and it was all good.

Since you said you just put the nutes you can attempt to just rinse that one off if you have a spray or hose water it so it cleans any clumped buildup if any.
 
M

MrGrowShow

Active Member
growthspurt said:
When I did hydro I had an issue where one of them had a nute buildup inside of the roots which caused one to get much more than the others. I lifted one and rinsed it to clear out the clot inside the root pile. After that I flushed and added fresh water and it was all good.

Since you said you just put the nutes you can attempt to just rinse that one off if you have a spray or hose water it so it cleans any clumped buildup if any.
Click to expand...
Thanks for the reply! I can't really get a hose to the plant right now, I have a spray bottle but I don't know if that will be enough to spray the roots down, especially since they are already submerged in the nutrient water.

Do you think that's what the problem is? Is there anything else I can do? How close to harvest do you think the one with the spots is? I was told when the hairs are about 40% brown, it's time to flush and cut it down,
 
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