Calcium deficiency?

Havek

Havek

Well-Known Member
is this calcium deficiency? or could it be heat stress? temps are around 85 atm. my plant is a little over 3 weeks from seed, just recently topped. Im using espoma plant tone mixed into the soil for veg. if so, what can i do to remedy it? I'm on a tight budget.
 

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I dont think its calcium deficiency. That is very minor damage and could be a number of things so I wouldn't try to correct it just yet.

Heat stress usually appears in top growth first with the foliage closest to the heat source. The leaves will yellow and the margins will fold upward. 85 is hot for my tastes but it shouldnt be an issue with a plant in veg.

Calcium def does cause burnt leaf tips but they will also be hooked. I just dont think its Ca.

I am not familiar with epsoma plant tone. Is it fertilizer? Does it contain Ca?

Are you using tap water? Does the tap water contain Ca?
 
Espoma plant tone is a granular organic fert, 5-3-3 with micronutes and mycos. Im not entirely sure if my tap contains ca. or not, how would I know? I do let the tap sit for 24+ hours before watering, so I doubt its from chlorine. Im currently growing under 3 42w cfls, they dont put off much heat but the temp in my house atm is around 82, and I have no ac. I do have a fan on the plant though.
 
Havek said:
Espoma plant tone is a granular organic fert, 5-3-3 with micronutes and mycos. Im not entirely sure if my tap contains ca. or not, how would I know? I do let the tap sit for 24+ hours before watering, so I doubt its from chlorine. Im currently growing under 3 42w cfls, they dont put off much heat but the temp in my house atm is around 82, and I have no ac. I do have a fan on the plant though.
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You can check the ppm/EC of the water with a meter. You can find them at hydro shops. If you have low ppm's, you have "soft" water and it contains little minerals like Ca and Mg. Deficiencies in these elements will often show up in people who water with soft tap or RO water and dont add the missing minerals. If you have soft water, you should add cal-mag, a supplement available at most grow shops.

You can also usually find city water data on your towns website. This will let you know what is in, or not in it.

The chlorine in the tap water is not harmful to plants, there is no need to let it sit for 24 hrs.

If the ambient temp in the room is 82, the tops of the plants will be considerably hotter. I still dont think its heat stress.

I wouldnt worry unless it gets worse or spreads.
 
MYOB said:
You can check the ppm/EC of the water with a meter. You can find them at hydro shops. If you have low ppm's, you have "soft" water and it contains little minerals like Ca and Mg. Deficiencies in these elements will often show up in people who water with soft tap or RO water and dont add the missing minerals. If you have soft water, you should add cal-mag, a supplement available at most grow shops.

You can also usually find city water data on your towns website. This will let you know what is in, or not in it.

The chlorine in the tap water is not harmful to plants, there is no need to let it sit for 24 hrs.

If the ambient temp in the room is 82, the tops of the plants will be considerably hotter. I still dont think its heat stress.

I wouldnt worry unless it gets worse or spreads.
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Alright. Thank you man.
 
Bro there's nothing wrong with your plants nutrients. All that you can see that is even an issue is the edges of your leaves curling upward indicating that the air temperature is too hot at that level of the plant and burning on the tips of your leaves indicating the same thing and possibly low humidity. Besides that your plants are perfect. Just move your lights further from your plants by a couple of inches and keep your humidity around 50%.
 
So today, I noticed what looked like a line eaten through one of the afflicted leaves. Then I saw a gnat (fungus gnat?) . I didn't know gnats ate leaves. Also, I have one leaf with the central vein curving downward, causing the leaf tissue to appear crumpled. What causes this? I should also note that the ambient temp has been around 88-92 lately, and theres nothing I can do about it. If these are fungus gnats, what can I do to get rid of them?
 

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the last set of pics looks like it could possibly look like a cal issue. however, i would focus more on getting temps down or at least getting humidity up to 60-65% if you can't.
 
it's the begining of a phosphorus deficiency on top of being too hot and dry. the rate of metabolism increases when it's hotter and dryer. one knat dosen't mean shit, but you better keep an eye out, especialy since your going to be watering a lot at those temps.
 
Havek said:
So today, I noticed what looked like a line eaten through one of the afflicted leaves. Then I saw a gnat (fungus gnat?) . I didn't know gnats ate leaves. Also, I have one leaf with the central vein curving downward, causing the leaf tissue to appear crumpled. What causes this? I should also note that the ambient temp has been around 88-92 lately, and theres nothing I can do about it. If these are fungus gnats, what can I do to get rid of them?
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Where are u measuring air temperatures from? By the plants or the room temp? Also, what type of water are you using? (Tap, RO, Filtered, Rain, Distilled, etc..)

If you saw a fungus nat its most likely have you have a root disease developing. They eat roots and carry a lot of diseases on them. Calcium deficiency is the least of your problems now. I would get some beneficial bacteria and look at my soil, if you see larvae crawling around in it you have to take action ASAP or ur fucked. A simple trick to stop that is cover the top 2 inches of your soil with sand. Fungus gnats don't like that for breeding and theres not food for them.
 
Situation420 said:
Where are u measuring air temperatures from? By the plants or the room temp? Also, what type of water are you using? (Tap, RO, Filtered, Rain, Distilled, etc..)

If you saw a fungus nat its most likely have you have a root disease developing. They eat roots and carry a lot of diseases on them. Calcium deficiency is the least of your problems now. I would get some beneficial bacteria and look at my soil, if you see larvae crawling around in it you have to take action ASAP or ur fucked. A simple trick to stop that is cover the top 2 inches of your soil with sand. Fungus gnats don't like that for breeding and theres not food for them.
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I have a thermometer at canopy level. I only saw one gnat and havent seen anymore since. Things dont seem to be getting worse, I think the nutes in espoma just werent immediately available to her. I could be wrong, but growth doesnt seem that stunted (maybe a bit from the heat) but heat aside, she looks healthy. I'll post back if the shit hits the fan, thank you guys for your suggestions :blsmoke:
 
Situation420 said:
Where are u measuring air temperatures from? By the plants or the room temp? Also, what type of water are you using? (Tap, RO, Filtered, Rain, Distilled, etc..)

If you saw a fungus nat its most likely have you have a root disease developing. They eat roots and carry a lot of diseases on them. Calcium deficiency is the least of your problems now. I would get some beneficial bacteria and look at my soil, if you see larvae crawling around in it you have to take action ASAP or ur fucked. A simple trick to stop that is cover the top 2 inches of your soil with sand. Fungus gnats don't like that for breeding and theres not food for them.
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since when is a fungus gnat issue ever that serious?
 
Fresh 2 De@th said:
since when is a fungus gnat issue ever that serious?
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Ever had fungus gnats give your plants a disease that you can cure but it reduces the final plant growth significantly? If you have 12 young plants and they all get sick, you are missing out on a lot of bud.
 
Fungus gnats dont eat plants. They lay their eggs in soil and eventually get stuck on resinous buds. U need to cover up the soil so they can't get in there. Some ppl use a half inch of perlite and it works.
 
dannyboy602 said:
Fungus gnats dont eat plants. They lay their eggs in soil and eventually get stuck on resinous buds. U need to cover up the soil so they can't get in there. Some ppl use a half inch of perlite and it works.
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Fungas gnat larvae feed on roots and that is a fact. That is why they lay their eggs at the base of the plant in the soil so there larvae have food to eat and develop. This also opens up the plant to disease and also carry alot of diseases.
 
Well, I dont have fungus gnats. But my problem seems to be spreading, and growth seems to be severely stunted. She looks healthy from a distance, but up close not so good. some of the leaves on the new growth seem to be taking on an odd S-shape. and the bottom two serrated leaves are yellowing (normal, right?) The temps are back down to 75 for the past 4 days, but things only seem to be getting worse. This is getting on my nerves. I'd really like to see this problem fixed, but I have no clue what it is and I cant find any similar cases on riu.
 

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I just looked at your new pics and you have a slight heat issue and a pH problem, or toxic soil problem. Those lower single tip leave that are turning yellow is normal because those are only used when the plant first germinates and is a seedling. Just make sure you didn't add too much pH up or down, or adding anything meant to "keep your plants healthy" like H202 or other products that may contain ingredients that dont have to be on the label but are potentially lethal to Mary J plants and your plants should have no problems.

EDIT: I just looked at your photos again, your plants are being poisoned by something and it is too hot .(Probably your pH adjustment chemicals or water source) There was a kid on here i helped that had similar looking plants, that burn on the edges ins't nute burn, thats toxic chemical burn. This kid was using 3% hydrogen peroxide thinking it would keep his plants healthy. It did but at the same time he didn't know the 3% H2O2 had added chemicals in it that are there to keep the peroxide suspended and help aid in cleaning wounds. The h202 he was using was not food grade or better so he was essentially poisoning his plants. he flushed out his roots and stopped using it and his plants came right back. Everyone else had a million ideas from nute deficiencies, to pH, to heat, humidity, calcium deficiencies, note lockout, etc.

Also, you said you are distilling you water by letting it sit for 24 hours, this would remove the calcium from your tap water as well if you are distilling it correctly. If you are not adding it back in then there is a likely hood that yes you may have calcium deficiency as well but does't look like it to me. It's up to you to figure it out. This is all i can think of that you should have to check out and experiment yourself.

Also just buy a $20 brita filter (or cheaper brand), it makes the water a lot safer for you and your plants. Unfortunately, toxic chemicals are legal to be in water sources as long as the concentration isn't that high. F that, what happens as they build up in your body over time and you get sick. Spend the $20 for peace of mind. It's like smoking half the amount you do for 2 days, not that big of deal.
 
Situation420 said:
I just looked at your new pics and you have a slight heat issue and a pH problem, or toxic soil problem. Those lower single tip leave that are turning yellow is normal because those are only used when the plant first germinates and is a seedling. Just make sure you didn't add too much pH up or down, or adding anything meant to "keep your plants healthy" like H202 or other products that may contain ingredients that dont have to be on the label but are potentially lethal to Mary J plants and your plants should have no problems.

EDIT: I just looked at your photos again, your plants are being poisoned by something and it is too hot .(Probably your pH adjustment chemicals or water source) There was a kid on here i helped that had similar looking plants, that burn on the edges ins't nute burn, thats toxic chemical burn. This kid was using 3% hydrogen peroxide thinking it would keep his plants healthy. It did but at the same time he didn't know the 3% H2O2 had added chemicals in it that are there to keep the peroxide suspended and help aid in cleaning wounds. The h202 he was using was not food grade or better so he was essentially poisoning his plants. he flushed out his roots and stopped using it and his plants came right back. Everyone else had a million ideas from nute deficiencies, to pH, to heat, humidity, calcium deficiencies, note lockout, etc.

Also, you said you are distilling you water by letting it sit for 24 hours, this would remove the calcium from your tap water as well if you are distilling it correctly. If you are not adding it back in then there is a likely hood that yes you may have calcium deficiency as well but does't look like it to me. It's up to you to figure it out. This is all i can think of that you should have to check out and experiment yourself.

Also just buy a $20 brita filter (or cheaper brand), it makes the water a lot safer for you and your plants. Unfortunately, toxic chemicals are legal to be in water sources as long as the concentration isn't that high. F that, what happens as they build up in your body over time and you get sick. Spend the $20 for peace of mind. It's like smoking half the amount you do for 2 days, not that big of deal.
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I have not ph'd my water or my soil since I started my grow. I was trying to do this spending as little as possible. I have not added any ph up/down, nor have I given my plant anything except tap water and the espoma plant-tone that I mixed into the soil. So, if this is a ph problem, I just buy a ph testing kit with ph up/down at my local hydro store? She seemed to love the tap water up until these issues surfaced, so I doubt it's that, but I can't be 100% sure because, after all, this IS my first grow. So, which should I buy first? The ph kit or the brita filter? I literally don't even have the cash for either, so buying both at once is not an option. Also, it might be a few days to a week before I can throw down any money on this problem. What should I buy first? How long will my plant survive this, and what's the worst possible case-scenario?
 
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