Lower leaf damage.

Marijuana Mercenary

Marijuana Mercenary

Well-Known Member
Well I leave for a couple days and all hell breaks lose. Come home to find my intake fan off and my room is 87 degrees. Most of the plant waters are 77 degrees.

I am changing them all out with fresh RO water, waiting on another bucket to fill. Figued I would show some pics to see what damage this is and to see if I can stop its progress.

0107161501.jpg 0107161501a.jpg

I looked over tons of guides, cant seem to find an exact answer. Looks like nutrient or ph related. Phs where upper 7s, and I thought nute burn started at tips.

The damage all seems to be started on lower leaves and working its way up. Above is one of the worse damaged plants. The upper leaves have similar damage starting. but it is a silver color and hard to notice. Same style splotches though.

Working with hydro dwc, 1800w mhs, autoflowers.

Any ideas? and let me be the first to say: FUCK!
 
Marijuana Mercenary

Marijuana Mercenary

Well-Known Member
They are normally low 70. I think my ph was too high for the plant to take up some nutes.

I have calmag foliar feed, was unsure if safe to spray autos with.

My nutes have calcium and magnesium also. Does this look like burn from too much? They are at half clone strength on nutes.
 
jmcdaniel0

jmcdaniel0

Well-Known Member
If they are on half strength, that shouldn't be the issue. Maybe lockout? You have me scratching my head lol.
 
Marijuana Mercenary

Marijuana Mercenary

Well-Known Member
Same here, when in doubt: flush.

This is why I hate leaving the house lol.

It seems to be the larger of the plants but they all getting flushed with ph water.

I am sure the dying leaves will continue to die but I will monitor wether it is spreading to new leaves.

I seen a tutorial that showed light damage, it looks very similar so I turned one of the lights off.
 
jmcdaniel0

jmcdaniel0

Well-Known Member
If it was light burn, I would think it would have happened before now. But that can't hurt. I would do like you said and flush them real good.

On a side note I got 5 Visions Northern Lights Auto gems coming, 1 2fast and 2vast, and 6 more auto gems coming soon. So I am on starting 5, running them till flower and start the other 6 while the five are going. I'm running outta stock so I can't wait. I won't buy from the locals anymore. There stuff is junk compared to mine. If I wanted to I bet I could put them out of business lol. But I don't want that kind of hassle.
 
billytimmy

billytimmy

Well-Known Member
Marijuana Mercenary said:
Well I leave for a couple days and all hell breaks lose. Come home to find my intake fan off and my room is 87 degrees. Most of the plant waters are 77 degrees.

I am changing them all out with fresh RO water, waiting on another bucket to fill. Figued I would show some pics to see what damage this is and to see if I can stop its progress.

View attachment 3580276 View attachment 3580277

I looked over tons of guides, cant seem to find an exact answer. Looks like nutrient or ph related. Phs where upper 7s, and I thought nute burn started at tips.

The damage all seems to be started on lower leaves and working its way up. Above is one of the worse damaged plants. The upper leaves have similar damage starting. but it is a silver color and hard to notice. Same style splotches though.

Working with hydro dwc, 1800w mhs, autoflowers.

Any ideas? and let me be the first to say: FUCK!
Click to expand...
I had similar, nearly identical issues with high ph water when I first started growing. my tap water can be around 8-9 :shock: depending on the time of year

I started using these and problems went away but I think they are a nono for an organic grow



you have to get the ph to ~6.5 *always* and they will recover. make sure to PH up too if your nutes take you below 6.5 my tap can sometimes go all the way down to 4 with some nutes
 
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