thearabicstudent
Registered:1366758767 Posts: 118
Posted 1387753871
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#1
So here are some pictures of how I've been growing my cuttings. I think my lights are too powerful and it's burning the leaves. I thought if I got fluorescent bulbs that would keep the leaves from burning, but it doesn't seem to help. It's not the heat of the bulbs (they don't get very hot at all), but I imagine the intensity of the light. The leaves are as you see below. They get dark in the center and some of them turn yellow. I imagine someone on this forum has had experience with this. Any tips? I've started pointing the bulbs up more so they aren't pointed directly at the plants. Btw, all the pictured cuttings are 7 months old. They are the survivors. About half died. Another thing, I don't turn the lights off at night. I don't know if this could be the cause as well. Thanks for any help! Link to the pics: http://imgur.com/a/kcT7X
__________________http://www.thearabicstudent.com Maryland, Zone 7a (half a mile from 6b)
Rewton
Registered:1291943117 Posts: 1,946
Posted 1387754802
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#2
I think most of us use the linear flourescent bulbs like T8s. These put out very little heat and have never burned leaves in my experience. It also doesn't seem necessary for cuttings that have been going for 7 months to be in a humidity bin. The bin should only be necessary for a few weeks if that. Last year I didn't use lights at all on figs but simply used south facing windows before transitioning them outdoors in the Spring.
__________________ Steve MD zone 7a
DallasFigs
Registered:1358877623 Posts: 990
Posted 1387756690
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#3
How hot are those metal cones on the light getting? I removed the cone on my clip lamp so that the light goes all around. The only time I've had a burnt leaf is if the leaf touches the bulb.
__________________ James - Irving, TX - Zone: 8a Follow me on EBay Wish List: 187-25 · Ice Crystal · Maltese Beauty · Maltese Falcon
bullet08
Registered:1284496248 Posts: 6,920
Posted 1387757322
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#4
i never used light set up before. the leaves on you pix show sunburn. i root in my study that has south facing window, and that seems to be good enough until spring comes around.
__________________ Pete Durham, NC Zone 7b "don't talk to me about naval tradition. It's nothing but rum, sodomy and the lash." - sir winston churchill "the problem with socialism is that eventually you run out of other people's money." - the baroness thatcher ***** all my figs have FMV/FMD, in case you're wondering. ***** ***** and... i don't sell things. what little i have will be posted here in winter for first come first serve base to be shared. no, i'm not a socialist...*****
thearabicstudent
Registered:1366758767 Posts: 118
Posted 1387758102
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#5
I've read on this forum that figs want a ton of light, but I guess there is a limit to that. I figured I could bombard them with light and they'd just grow faster. Doesn't seem to be true.
__________________http://www.thearabicstudent.com Maryland, Zone 7a (half a mile from 6b)
milehighgirl
Registered:1382109709 Posts: 284
Posted 1387759527
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#6
I have used T5 and T8 bulbs and have had the leaves very close if not touching and they have not burned. Maybe the twisted fluorescents have a higher concentration of heat because of the spiraled bulb. I have even had lady bugs lay their eggs on the bulbs and they hatched!
__________________ USDA Zone 5b, Sunset 2b
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WillsC
Registered:1348087628 Posts: 1,698
Posted 1387761604
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#7
Quote:
Originally Posted by alanmercieca Regular fluorescent bulbs, and energy saving fluorescent bulbs kill off vegetation very fast, I tried that last year
Do you mean just bulbs as opposed to tubes?
indestructible87
Registered:1368407095 Posts: 548
Posted 1387764268
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#8
I'm having the same thing happen with the leaves turning, and then falling off. I'm using a regular desk lamp with a daylight bulb, some of the plants don't have any discoloration and others do.
__________________ Travis Pittsburgh, PA
bullet08
Registered:1284496248 Posts: 6,920
Posted 1387764484
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#9
is it possible the leaves have not acclimated to the light intensity like when taking new cutting out to the sun in spring?
__________________ Pete Durham, NC Zone 7b "don't talk to me about naval tradition. It's nothing but rum, sodomy and the lash." - sir winston churchill "the problem with socialism is that eventually you run out of other people's money." - the baroness thatcher ***** all my figs have FMV/FMD, in case you're wondering. ***** ***** and... i don't sell things. what little i have will be posted here in winter for first come first serve base to be shared. no, i'm not a socialist...*****
RichinNJ
Registered:1374784282 Posts: 1,687
Posted 1387766941
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#10
IMHO which is not so humble sometimes you need to water those figs more. The soil looks really dry and pulled away from the sides of the container.
OttawanZ5
Registered:1192897779 Posts: 2,551
Posted 1387771909
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#11
It appears that you just came from vacation. The soil in the pots seems to be on the dry side. Keep it moist and you may see better progress.
__________________Ottawan-Z5a, Canada
cis4elk
Registered:1347840383 Posts: 1,718
Posted 1387778145
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#12
Are you using fertilizer? Fluctuating moisture levels can cause nutrient levels to get rather high. Using a light amount of nutrients dissolved into water on regular basis is no big deal if flushed through and salts aren't allowed to build up, but if the soil is only moistened with nutrient water repeatedly and then allowed to dry out, the overall nutrient levels or salts can get quite high. The area where the light is most intense will have the most cellular activity and resultant focal fertilizer burn. I think your burn is from this scenario and not from lamp intensity. This is one reason why I avoid feeding my babies much until they are big enough to withstand a good dousing of water without drowning. And if your not using fertilizer or soil with fertilizer in it already...then what do I know. But I have seen this happen.
__________________ Calvin Littleton,CO z5/6 Wants List: For everyone to clean-up after themselves and co-exist peacefully. Let's think more about the future of our planet and less about ourselves. :)
jdsfrance
Registered:1376988473 Posts: 2,591
Posted 1387787523
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#13
Hi, Because your trees have grown up, you should now to move the lights upwards. You should attach the lights at one meter or more ( at the roof of your room ) sothat the trees keep growing up - they look like willing to grow to the side because of the position of the lamps . Your trees lack water . I would put a wooden piece of one centimeter thick (or less 1/2) under each pot and leave some water in the container. The leaves look thick - it can be from the cultivar - or your room temperature is a bit on the low . How is your room temperature ? IMO, Having such a setup near a window would help . IMO, the pots are now too small, I would up-pot . Did I mention, that last year I lost my 3 little trees that I had in my flat ? :)
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rafaelissimmo
Registered:1335639347 Posts: 1,473
Posted 1387846648
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#14
Interesting thread. I use t5s on 24/7, they have not burned any leaves yet but I am only 4 weeks on cuttings that have now leafed out.
__________________ Zone 7b, Queens, New York
bullet08
Registered:1284496248 Posts: 6,920
Posted 1387851529
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#15
ya know.. if i remember correctly, the leaves burn less if the soil is well watered.
__________________ Pete Durham, NC Zone 7b "don't talk to me about naval tradition. It's nothing but rum, sodomy and the lash." - sir winston churchill "the problem with socialism is that eventually you run out of other people's money." - the baroness thatcher ***** all my figs have FMV/FMD, in case you're wondering. ***** ***** and... i don't sell things. what little i have will be posted here in winter for first come first serve base to be shared. no, i'm not a socialist...*****
javajunkie
Registered:1362970391 Posts: 1,523
Posted 1387884877
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#16
I always keep mine on a 12 hour light diet as well. I think everything needs to rest sometime. Been away for a little while and didn't realize how much I miss and enjoy your replies Pete :) LOL.
__________________ Tami SE Texas
newnandawg
Registered:1344130335 Posts: 2,535
Posted 1387890255
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#17
T-5 and T-8 tubes work fine for me. I keep the lights as close to the top of the figlets as possible without touching them.
Aaron4USA
Registered:1375832059 Posts: 2,969
Posted 1389291820
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#18
Those pots looks dehydrated, make sure they are always moist , otherwise just raise the lights a bit and measure the temp with thermostat, make sure the heat doesn't reach 42C, or whatever that makes up in F. Otherwise they seem like doing well.
thearabicstudent
Registered:1366758767 Posts: 118
Posted 1397177728
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#19
So just to follow up on this, it was all about the water. I just wasn't watering enough. I read so much here about over watering and I was so determined to make sure I didn't do that that I under watered them. I've since started watering them around every 4 days and they are much better. My outside figs were also suffering from not enough water. I water them every other day or every day if it's summer. I don't know why there's so much stress on over watering here. Are there people who are watering several times a day or something?
__________________http://www.thearabicstudent.com Maryland, Zone 7a (half a mile from 6b)
OttawanZ5
Registered:1192897779 Posts: 2,551
Posted 1397179206
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#20
It just got mentioned already! There seem to be water deprivation (at lleast when pictures were taken). Keep the pot soil moist to minimiaze the issue you are having.
__________________Ottawan-Z5a, Canada