tips curling & burn

orgnlmrwiggles · Feb 1, 2009

can't diagnose my problem. any ideas?

im getting a lot of yellowing, on newer leaves

also threw in a picture of some blackberry kush i got from the club for eye candy

robert 14617 · Feb 1, 2009

Plant Abuse Chart

orgnlmrwiggles · Feb 1, 2009

january 16th, picked up 6 shiva skunk, kept all 6 in closed cardboard box for about 12 hours,

january 17th, then, with foxfarm OF, transplanted from 2 gallon to 5 gallon home depot buckets with holes drilled for drainage. vegged with plain ph 6.5 tap water and 1/8-1/4 tspn "stay green" "1/2gal each plant".
24/7 under 400 watt hps @ almost 2.25-2.5 ft above tops. til plants were about 12 inches.

january 19th, 1/8 tspn budswell, 1/8 tspn stay green, 1/8 tspn botanicare pure blend bloom pro (soil) "1/2gal each plant"

january 20th, noticed tip curling.

january 21st, looks like some tips were burning, curling and yellowing leaves. stopped watering

january 23rd, water, plain ph 6.5 tap water. "1/2gal each plant"

january 25th, water, plain ph 6.5 tap water. "1/2gal each plant"

january 28th, still having burning issue, snipped some lower dying leaves, and tips of leaves that were lookin dead on tips.

february 1st, going to check on plants shortly, and most likely flush with about 5-10 gallons plain ph'd water

plant abuse. lol really think so?

robert 14617 · Feb 1, 2009

did you check info in chart/ just click on it Plant Abuse Chart

orgnlmrwiggles · Feb 1, 2009

robert 14617 said:
did you check info in chart/ just click on it Plant Abuse Chart

oh i couldnt match it up exactly, cuz all of those mainly look burned, not really any curling... and im kinda getting some major curlage

robert 14617 · Feb 1, 2009

Cr8z13 · Feb 1, 2009

^^^ I feel a sharp pain in my sac when I look at that pic. Brings back painful memories. :lol:

robert 14617 · Feb 1, 2009

did you donate that pic cr8z

orgnlmrwiggles · Feb 1, 2009

so what do we reccomend?

Cr8z13 · Feb 1, 2009

robert 14617 said:
did you donate that pic cr8z

No, thank God. I did once lose 3 babies in a similar fashion, though.

Cr8z13 · Feb 1, 2009

orgnlmrwiggles said:
so what do we reccomend?

Tough to say what the problem is, but I'm leaning toward "heat stress". How are your temps and humidity? Are you measuring the temp near your plants' canopy? How many weeks into flowering are they?

robert 14617 · Feb 1, 2009

im leaning toward too much water the roots aren't getting the oxygen they need and its causing nute lock....

Cr8z13 · Feb 1, 2009

If temp and humidity are normal, I'm inclined to agree that there is a nutrient/feeding problem.

orgnlmrwiggles · Feb 1, 2009

Cr8z13 said:
Tough to say what the problem is, but I'm leaning toward "heat stress". How are your temps and humidity? Are you measuring the temp near your plants' canopy? How many weeks into flowering are they?

well, we have a base thermometer near the bottom of the lamp, and the remote thermometer resting on the rips of the pots.

temps range from 55 at night when the lights on with no blower, to 95 during the day with no lights on with no blower. i need an extra timer for the blower during the day. im not sure how long the temperatures are at those temps tho.

humidity is usually around 50-75%

orgnlmrwiggles · Feb 1, 2009

robert 14617 said:
im leaning toward too much water the roots aren't getting the oxygen they need and its causing nute lock....

this might be a possibility.
this ocean forest retains water very well.
im thinking that our buckets we are using as pots might not drain enough, but it seems like they drain fine.

Cr8z13 · Feb 1, 2009

orgnlmrwiggles said:
well, we have a base thermometer near the bottom of the lamp, and the remote thermometer resting on the rips of the pots.

temps range from 55 at night when the lights on with no blower, to 95 during the day with no lights on with no blower. i need an extra timer for the blower during the day. im not sure how long the temperatures are at those temps tho.

humidity is usually around 50-75%

Humidity is fine, but the temperature is out of control. Ideal is around 75-80. You need better ventilation to extract all that hot air.

BRICKWeeD · Feb 1, 2009

heat stress (I tell by the tips), lower the temps (anything over 90 is deadly) and remember it takes 75f for photosynthesis to occur....maybe even back the light up a lil?

orgnlmrwiggles · Feb 1, 2009

right now we have a 450cfm blower hooked up on the inside blowing the air inside the shed through hood and out the other side of the hood, and out through a vent above the door. this is only a 400 watt hps.

i didnt think it would be a problem to only turn the blower on during hot occasions because the light is almost 3 feet above the plants. (too high but our ducting limited us til today)

we not have the 400 watt hps over the 6 about a foot and half above the highest canopy. and we are running the blower 24/7 starting now.

i think we might need to make an air intake port because the blower causes air to come through small cracks. any ideas if that would help?

Cr8z13 · Feb 1, 2009

Air intake hole(s) would be good, but you should be using that blower as exhaust to vent away the hot air.

310juice · Feb 1, 2009

need to remove the hot air for sure

tips curling & burn

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