Dirtbag
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Veg, about 4 weeks old under T5HO. But these are fairly old plants in general...
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Are they in veg or flower? What spectrum of light?
This is a fantastic trichome anatomy article. Thank you so much for sharing it! It's actually my first time visiting that website. It seems there are a lot of quality references throughout it. Awesome!!Sorry. I didn't realize i posted a bad link. Here is another with the same info i quoted. And i apologize. I forgot those “hairs” on the leaf were non glandular trichomes. But bulbous trichomes i have seen as i said.
Medical Marijuana 101: Trichomes
Trichomes house the key components of the plant that give it its therapeutic and psychotropic properties, known as cannabinoids.www.medicaljane.com
Veg, about 4 weeks old under T5HO. But these are fairly old plants in general... View attachment 935079
This is a fantastic trichome anatomy article. Thank you so much for sharing it! It's actually my first time visiting that website. It seems there are a lot of quality references throughout it. Awesome!!
So maybe the maturity of the plant increases the expression of the capitate-sessile trichomes. Do you know if those T5HO bulbs have any UV spectrum? Also have you had any phosphorus issues?
Basically non glandular are hair like. Glandular will have at the least a small stem and a headI just posted to answer you above. But they are glandular according to the info but hold no canabanoids.
YaI just posted to answer you above. But they are glandular according to the info but hold no canabanoids.
Hmmm, well right you are. Then those must not be bulbous on the underside of the leaves, as those are definitely non glandular.I just posted to answer you above. But they are glandular according to the info but hold no canabanoids.
Honestly look at the scale here, look at the size of your capitate sessile compared to a non glandular. Look at the scale in your pics, those eggs are quite a bit bigger than your non glandularsHey I just found this on reddit. Not sure on the credibility of the source, but at least I can identify the type of trichromes better, and I hope my pictures reveal a type of trichrome called Capitate-Sessile.
"Capitate-Sessile:
(approximately 25-220 micron resin head; one micron tall stalk) The second type of gland is much larger and much more numerous than the first. These are called capitate-sessile. Essentially meaning globular head attached without stalk. These glands actually do have a one cell high stalk, but it is not visible when observed by macro. Instead, the globular head seems to be sitting flush on the plant. The head is usually composed of eight to 16 cells that create a convex rosette formation. These head cells secrete cannabinoids and terpenes between that rosette and cuticle, resulting in a spherical shape."
"Capitate-sessile trichome (center) on cannabis leaf surrounded by non-glandular trichomes or cystolith hairs."
View attachment 935013
I'm sure they have some minimal UV output but not much. No phosphorus issues here. I'm a proponent of low phosphorus feeds even throughout flower.
Honestly look at the scale here, look at the size of your capitate sessile compared to a non glandular. Look at the scale in your pics, those eggs are quite a bit bigger than your non glandulars
The problem I have with the capitate sessile theory is due to your early pics. They look clustered, and like eggs were laying on top of each other or within very close proximity.
Your glandular trichs will usually display a certain consistency in regards to their spacing and everything will be spaced fairly evenly.
If you want to get eyes on a cyclamen, look at one of your new growth sites, typically the ones that are yellow and twisted. Open it up and look deep within the crevices with your scope
I've never checked for ripeness via the bottom of my fan leaves.I found an article just now that claims the zinc lockout from excess phosphorus occurs due to a dilution effect. Here's the URL:
(PDF) Interaction Effects of Phosphorus and Zinc on their Uptake and 32P Absorption and Translocation in Sweet Corn (Zea mays var. Saccharata) Grown in a Tropical Soil
PDF | Zinc (Zn) and Phosphorus (P) interact with each other and this interaction can result in impact on the yield of corn plants. This study was... | Find, read and cite all the research you need on ResearchGatewww.researchgate.net
If calcium and phosphorus bind under conditions of phosphorus excess and produce calcium phosphate, and if zinc uptake is prevented via phosphorus dilution, then it would seem I need to break apart the calcium and flush away some of the phosphorus. Citric acid will dissolve calcium phosphate and essentially act as a flushing agent removing calcium phosphate as run off. Then additional calcium will continue binding to additional phosphorus (maybe?), and my problem continues. However, if I use mammoth p and the microbes break apart the calcium phosphate, that might keep the calcium available even in conditions of excess phosphorus. Does this make sense to anybody?
I worry my earlier pics were not representing the actual state of the leaves. It was actually my first time capturing an image on my microscope. Part of the reason my intuition beckons me away from thinking that they're eggs, is because they are not stacked and they are distributed as I have seen thrichomes distributed. Also, this plant doesn't have new growth sites with yellow and twisted growth, nor do any of my other plants. At least that's how I see them. What do you think?
I've never checked for ripeness via the bottom of my fan leaves.
I scope my plants often, as I've run the gammut with both broads and cyclamens and never see those round abnormalities on the underside of my fan leaves, just un-glandular trichs. I practice a weekly IPM now due to my experiences.
Your plants you photo'd earlier are still the same plants and i noticed a bunch of fan leaves cupping upwards, and with twisting and cupping new growth, and I see it in your new pics as well.
The fan leaves you plucked where showing signs of 7th finger deformity and regression which is typically the sign of a pathogenic attack.
Won't hurt anyone to open up those new growth sites and scope em. You"ll most likely get your answers.
When you were working with broads and cyclamens did you notice the round abnormalities underneath the leaves like mine have?
I'll take a peak at those new growth sites now and look around.
Edit:
No luck.
I looked for as long as my eyes would allow. My eyes are exhausted from using the microscope for hours today. I checked each top the best I could and found no evidence of mites.
I did notice the same looking sessile thrichomes buried under a heavy carpet of non-glandular trichomes on the new growth. The non-glandular trichomes are especially dense on the new growth, and it's hard to a imagine a mite getting through it to lay an egg. It could lay one on top of them, but it's hard for me to see how they could get past a dense criss-crosing carpet of them to lay one. I'll spend these next few days checking my tops as closely as I can to make sure.
Thank you for help!
Well I'm definitely curious as to what you find, wish your grow the best.When you were working with broads and cyclamens did you notice the round abnormalities underneath the leaves like mine have?
I'll take a peak at those new growth sites now and look around.
Edit:
No luck.
I looked for as long as my eyes would allow. My eyes are exhausted from using the microscope for hours today. I checked each top the best I could and found no evidence of mites.
I did notice the same looking sessile thrichomes buried under a heavy carpet of non-glandular trichomes on the new growth. The non-glandular trichomes are especially dense on the new growth, and it's hard to a imagine a mite getting through it to lay an egg. It could lay one on top of them, but it's hard for me to see how they could get past a dense criss-crosing carpet of them to lay one. I'll spend these next few days checking my tops as closely as I can to make sure.
Thank you for help!
This thread made me curious. I didnt take time for photos under my scope but I can say the bottoms of my fan blades are absolutely covered with these sessile trichomes.
I can see a clear similarity to those pesky mites we all hate. My plants are perfectly healthy and vibrant. Without definitively seeing a mite under inspection (sounds like you have been thurough) my gut points to an imbalance in soil or environmental errors.
Some plants love hovering around 75 - 80 ambient temps while other prefer 65 - 75. Maybe something like this is the problem.
My gut says flush that soil, read your ppms, test your water and come back at it.
Well I'm definitely curious as to what you find, wish your grow the best.
Completely side bar observation here. I am impressed how considerate / respectful everyone on this forum behaves toward one another.
I have seen several polite, "I am sorry you dont agree; this is what I see..." sorts of comments.
That's all. Good on everyone
My first grow diary on here actually reported an over fertilization of phosphorus...when will I learn!?
The time has finally come for me to understand nutrient interactions and base cation saturation. I had to expedite this learning process while trouble shooting this grow, and I am much closer to understanding how organic and inorganic inputs affect this plant.
One of your plants has some some red stems, so I thought maybe there could be a phosphorus issue there. I also know this can be expressed in certain cultivars without being phosphorus deprived. It's nice to find a grower who is thoughtful about their phosphorus. Do you grow in living soils also? What's your preferred source of phosphorus?
I just grabbed another leaf to try to focus on the proportional size of everything. Here are two pictures one at 60x and one at 120x. On the left of the picture you can see the main vein (looks red) that runs through the middle of the leaf blade, as well the non-glandular and the capitate sessile. Do these proportions still seem far off?
60x
View attachment 935081
120x
View attachment 935082
Lol yeah that's why I took the pic down, I figured someone could easily mistake that for P deficiency. That's my violator kush cut, it has purple pinstriped stems no matter what. All the plants around it show none of that. And Im growing in rockwool using botanicare pbp grow and a bit of calmag since I use rainwater with 0ppm to start.
This is the platinum cookies that also shows the same trichs on the bottom of the fan leaves.View attachment 935146
Pros: you've seen no mites and you have no little white dots indicative of where they bite and suck on the leaf, and they seem to be patterned out rather than grouped together randomly; and if all those were eggs I would expect to see some live mite activity by nowWhat plant are you looking at exactly? How is it being grown and how old is it? Is it in vegetative? Under what spectrum?
I've just taken another leaf off of my purple punch (another extremely resinous plant...so they say), and I found another variety of what appear to me to be capitate-sessile trichomes. It could be that this infestation is full blown in my tent, but they scream out to me as being trichomes. Their distribution is just as I see it when I am checking for trichome maturity.
I purchased these clones on black friday, and they have been underneath a 300w MH, a 130w QB LED, and a 300w HPS during their time with me. If anything now I am wondering if the added UV rays from the LED influenced this.
Definitely curious where this thread goes as well. Those are two of the pics I've based my opinion on and look typical to eggs on a vegatative plant.Pros: you've seen no mites and you have no little white dots indicative of where they bite and suck on the leaf, and they seem to be patterned out rather than grouped together randomly; and if all those were eggs I would expect to see some live mite activity by now
cons: you brought in outside plants, you've had mites, they look like eggs, particularly underneath the leaf
In particular your first pictures look like eggs, and this 2nd one
View attachment 935158
View attachment 935157
..lots more pros and cons! but again I just have a gut feeling, nothing more
I know you've got more than a casual eye on it so best wishes and let us know, great thread thanks for sharing!
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