Leaves dying

Criminal wheat · Feb 23, 2015

Hi, I m new to this forum and I need help!!!!
For some reasons my plants are very healthy and all of sudden the next day a bunch of leaves are dying, temp 26 c when light on 17-18 c when off. Second weeks into flowering, 1000 watts hps, 10 gallon buckets soil, feed nute 1/3 times I water.

Bud Tipps · Feb 24, 2015

Got any pics?

Lysergicpt · Feb 24, 2015

Criminal wheat said:
Hi, I m new to this forum and I need help!!!!
For some reasons my plants are very healthy and all of sudden the next day a bunch of leaves are dying, temp 26 c when light on 17-18 c when off. Second weeks into flowering, 1000 watts hps, 10 gallon buckets soil, feed nute 1/3 times I water.

are you leafs getting yellow ?
did you start you flowering nutes after the day you switch ?
Whats your soil ? is it a light soil ?
Depending on the strain , your plants will require large amounts of Nitrogen the first 2 weeks after the switch , because they will create alot of "green" material when they do the strech, and some nutes fail to provide it.
How is the thikness of your stems ? in the new growth ?
But pics would be a great help , or else we are just shooting in the dark.

*BUDS · Feb 24, 2015

Bunches of leaves dont all of a sudden die. We need pics, more info.

boilingoil · Feb 24, 2015

And what does your soil consist of ?

Criminal wheat · Feb 24, 2015

Bud Tipps said:
Got any pics?

Criminal wheat · Feb 24, 2015

It is light soil, they were doing great, I think it might be because I never flush the soil, maybe nutrient build up in the soil, I checked the run off yesterday it was at 5.7 ph, and the nutrient was at 3500 ppm, which seems really high.

Enots · Feb 24, 2015

Nute burn

Diabolical666 · Feb 24, 2015

Looks like wind damage

boilingoil · Feb 24, 2015

WOW 3500 ppm's you better flush .

GroErr · Feb 24, 2015

Diabolical666 said:
Looks like wind damage

Besides the extremely high nutes it does look like air burn. I've seen that in a small veg cabinet I run when I had a fixed fan in there. Have yet to see it again since I switched all my rooms to oscillating fans.

Bakatare666 · Feb 24, 2015

Criminal wheat said:
It is light soil, they were doing great, I think it might be because I never flush the soil, maybe nutrient build up in the soil, I checked the run off yesterday it was at 5.7 ph, and the nutrient was at 3500 ppm, which seems really high.

Way too high.
Get your PH up a bit too if you can.
You're feeding, but not getting all of it.
Shoot for around a 6.2-6.5 if you can.
Some plants are more tolerant than others, but mine, I drop my water PH to about 7.0, no matter whether adding nutes or not, and never had an issue. (knock on wood).

Criminal wheat · Feb 24, 2015

Thanks guys, I did flush the soil last night and even after adding 10 gallons of fresh water in the soil I was still getting high ppm. I have an occilating fan on there but it's not directly blowing on the plants, I will flush some more tomorrow and see what I get.

Gquebed · Feb 24, 2015

If you are measuring run-off...you are getting high ppms because of the solids in the water. That doesnt mean anything. Ppms are not a measurement of nutes. It is a measurement of solids in the water. Ppm measurement of run off is useless.

Some posts mentioned windburn. Fans too high? Are they getting fresh outside air?

From the pics...Ill bet you dont have any fresh air getting to them...so plants are eating themselves....

boilingoil · Feb 24, 2015

Gquebed said:
If you are measuring run-off...you are getting high ppms because of the solids in the water. That doesnt mean anything. Ppms are not a measurement of nutes. It is a measurement of solids in the water. Ppm measurement of run off is useless.

Some posts mentioned windburn. Fans too high? Are they getting fresh outside air?

From the pics...Ill bet you dont have any fresh air getting to them...so plants are eating themselves....

Really ,solids in the water I would rethink that.

Criminal wheat · Feb 24, 2015

The room is 5 x 5 x 8. And there is a 250 cfm taking the hot air out and on the bottom of the room a 170 cfm online fan blowing inside.and the ocsilating fan is blowing just above the plant at the lowest speed, so I doubt it would be from the air. Nute burn usually affect the tips of the leaves this is the entire leaves getting affected and dying.

Criminal wheat · Feb 24, 2015

Gquebed · Feb 24, 2015

boilingoil said:
Really ,solids in the water I would rethink that.

Is that right? Do you know how a ppm meter works? If you did...you would know what i am talking about...

Gquebed · Feb 24, 2015

Criminal wheat said:
The room is 5 x 5 x 8. And there is a 250 cfm taking the hot air out and on the bottom of the room a 170 cfm online fan blowing inside.and the ocsilating fan is blowing just above the plant at the lowest speed, so I doubt it would be from the air. Nute burn usually affect the tips of the leaves this is the entire leaves getting affected and dying.

Is that 170 fan bringing in fresh outside air?

Criminal wheat · Feb 24, 2015

Gquebed said:
Is that 170 fan bringing in fresh outside air?

No, it's bringing air from the house. Not outside

Leaves dying

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