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Ythor
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I've read several references to a virus carried by root aphids, but never seen sources cited. I'm currently trying to diagnose a set of plants that exhibit the phantom-deficiencies that make me think of previous root aphid experience, but I can find no signs of actual root aphids.
Does anyone know more?
That's very possible. Or root aphids once had something to do with it and are now out of the picture but it's too late.There is a very simple possible explanation: your plants are virused, and root aphids have absolutely nothing to do with it.
Very little is known of the viruses afflicting the Cannabaceae. Worse, same as anything else concerning viruses, there's a lot of lore and broscience, and not a lot of support to the assertions being made.
I've tried to become more aware of this possibility and using Physan 20 on cutting tools whenever possible, but mistakes are sometimes made. Fungus gnats are also very difficult to completely eradicate. They may turn one carrier mother into many. Is it possible to kill a virus within living plant tissue? My current understanding is it is not.Probably one of the worst viruses (in terms of persistence in the environment, as well as its ready availability) is tobacco mosaic virus; it is extremely robust, and affects a broad spectrum of plants. It is conferred through contact with open wounds in plants using tools (and hands) that have been exposed to plant matter that has existing TbMV virus particles present. Denaturing the virus requires very high temperatures, and common cleaning chemicals do not affect it. As a result, a task as simple as pruning or taking cuttings can lead to infection of many plants if the same cutting tool(s) are used.
Great point. I could go through the issues I've seen and explain much of it as a virus present that shows symptoms only as a result of stress. Stress can cause all kinds of things, but sometimes plants can be incredibly resilient and sometimes can fall into a downward spiral of ill health.Why more stringent measures against viruses are not taken when the crop is as valuable as marijuana continues to confuse me. The only thing I can suppose is that cannabis is a sufficiently robust plant that even when viruses are present, the plants continue to do well. Only when they are stressed do they show signs of virus, or succumb to infection. I have seen virus-like symptoms among cannabis plants, but have yet to run the proper tests on them to be certain. It is very easy to confuse symptoms of virus infection with any one of a number of disorders that arise from stress, growing conditions, or even genetics.
Indeed, I'd love to draw conclusions, but that would be more broscience. Can anyone recommend a lab doing testing for a wide array of possible viral infection of plant tissue? It would be great to have some real data backing up these guesses.As a result, without proper testing, anyone asserting a plant or a clonal line is infected is probably talking out their wazoo. As is with the case with human viruses (HIV, Hep C, etc.), not all carriers are symptomatic, and not all symptoms are definitive for virus infection.
My personal experience is that an RA infestation will make the plants more susceptible to pretty much anything--pest or pathogen. However, I'm fairly certain that it was, what was her name? It's been a while, she said she and chemchris (? do I have it right?) figured out that a barley virus of some sort had been vectored into their rooms via RAs. I would search Google Scholar for root aphid vector virus.I've read several references to a virus carried by root aphids, but never seen sources cited. I'm currently trying to diagnose a set of plants that exhibit the phantom-deficiencies that make me think of previous root aphid experience, but I can find no signs of actual root aphids.
Does anyone know more?
Thanks for the link. I see they have 181 products available for sale to test plants. Which test kit/s did you find useful for this application? Ever tried sending a sample in for lab analysis?IMHO< Better safe than sorry. order up a test kit and test your plants to be sure they did not get infected with a virus. I got my kit here: http://www.agdia.com/
Tons of broscience "experts" all around...ROFL
Thanks a lot, treebark. It is greatly appreciated.No problem brotha, it will take about 10 weeks till I have an answer but I need to grab some and I'll treat a test plant with it, and flip it in about 7 days.
That's very possible. Or root aphids once had something to do with it and are now out of the picture but it's too late.
I've tried to become more aware of this possibility and using Physan 20 on cutting tools whenever possible, but mistakes are sometimes made. Fungus gnats are also very difficult to completely eradicate. They may turn one carrier mother into many. Is it possible to kill a virus within living plant tissue? My current understanding is it is not.
Great point. I could go through the issues I've seen and explain much of it as a virus present that shows symptoms only as a result of stress. Stress can cause all kinds of things, but sometimes plants can be incredibly resilient and sometimes can fall into a downward spiral of ill health.
Indeed, I'd love to draw conclusions, but that would be more broscience. Can anyone recommend a lab doing testing for a wide array of possible viral infection of plant tissue? It would be great to have some real data backing up these guesses.
Wow, so much in that post, Ythor, I almost forgot to ask you about isopropyl alcohol. My surgeon recommended it as the best disinfectant/sterilizer (to use in the home) post-surgery, for all hard, non-porous surfaces. He felt it was far superior to bleach, even with its abysmal effective period. I haven't even looked into it as an alternative to other compounds, such as quats, outside of my post-surgery issues.
It can resist formalin???
We have many issues with those who endeavor to cultivate cannabis. Their casual use of extremely toxic or otherwise strongly effective compounds is but one issue. Their blatant disregard to causing resistance in species or groups of species is yet another, and quite underappreciated at this point in time, in my opinion. Passing on myth and legend as though it were fact, but is instead merely gospel, is yet another.
so have you analyzed any high-grade solvent-extract samples? if so can you publish the data?I then offer to test it on GC/FID,
so have you analyzed any high-grade solvent-extract samples? if so can you publish the data?
There are many distributors of solvents like butane, and it's easy enough to take a can and evaporate it alone to see how much it leaves behind.
mm..Not that I could release; someone else owns the data.
uh huhI normally don't cite Wikipedia, but:
That's a very good point. I've been thinking the best setup would involve a solvent recovery system, and in that case after a few runs whatever is going to be left behind will have been. But it would definitely be nice to use food-grade solvent.This does not take into account any solvent that may have a greater affinity for the product- the hash oil- than for escaping into the atmosphere.
Yes, unfortunately. It's very difficult to tell though - the symptoms look to me like what I think of as a root aphid problem, but for all my searching have not found evidence of a single root aphid. Leading me to think it's more complex than that. I did an imidacloprid test on one plant and it has not noticeably improved, so there's one more reason to think there are (or are no longer) living root aphids continuing to cause these issues.Well bro if you got a virus ur fucked ...
But if u stay on top of um they are weak and u can control them quite easily...
I do what I have to, to feed my family. I support many people and many people depend on me, so I can't mess around without pesticides.
If I didn't have to worry about money, then I would certainly try to attain a growing environment where successful organics could be realistic. But until then, I would recommend to all growers to use pesticides regularly. Again, that's only if you need to earn profits. If you're rich, then you can afford to buy the time to learn how to create a well balanced environment where pesticides are not necessary.
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