Seeds can be treated and used. Look at post 1300,
-SamS
-SamS
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Dud Identification Collective Knowledge.
- Thread starter high life 45
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The heat treatment for nematodes in water is for seeds. Do not dunk cannabis in hot water. It ruins the plants.
Youtube took my videos down. I dunno why they don't like nematodes.
It's uploading here now, this link should work in about an hour.
https://vimeo.com/102965431
edit: youtube unbanned the account, nevamind
It's uploading here now, this link should work in about an hour.
https://vimeo.com/102965431
edit: youtube unbanned the account, nevamind
Last edited:
From Sam's post #1300:
" In the field the fourth-stage juvenile can withstand desiccation for many years, and although soil densities seem to decrease rapidly, the nematode can survive for years without a host plant. Desiccation of D. dipsaci causes some ultrastructural changes (Wharton, 1996; Wharton and Lemmon, 1998). Following a period of desiccation and re-immersion in water, recovery occurs after a delay (lag phase) showing that repairs or restoration of a normal physiological state are necessary before activity can resume (Wharton et al., 1999)."
Does that mean that the nematodes could dry out, hangout on the floor of a room or in a corner among dust and then reinfect clean cuts planted months later?
" In the field the fourth-stage juvenile can withstand desiccation for many years, and although soil densities seem to decrease rapidly, the nematode can survive for years without a host plant. Desiccation of D. dipsaci causes some ultrastructural changes (Wharton, 1996; Wharton and Lemmon, 1998). Following a period of desiccation and re-immersion in water, recovery occurs after a delay (lag phase) showing that repairs or restoration of a normal physiological state are necessary before activity can resume (Wharton et al., 1999)."
Does that mean that the nematodes could dry out, hangout on the floor of a room or in a corner among dust and then reinfect clean cuts planted months later?
Yes. The desiccated nematodes can survive for years without water. Once hydrated, they come back to life. Kind of like spores. It's called "Anhydrobiosis".
http://en.wikipedia.org/wiki/Anhydrobiosis#Anhydrobiosis
http://en.wikipedia.org/wiki/Anhydrobiosis#Anhydrobiosis
G`day 215 ,Retro
Its the attack of the Sea Monkeys !
re heat treatments .
If the nematodes are under the bark you will need a lot hotter than the prescribed killing temp to penetrate the stem to get it hot enough . Some energy will be absorbed by the outer layers before it gets to where the Todes are living .
Sounds like plant death to me .
Thanks for sharin
EB .
Its the attack of the Sea Monkeys !
re heat treatments .
If the nematodes are under the bark you will need a lot hotter than the prescribed killing temp to penetrate the stem to get it hot enough . Some energy will be absorbed by the outer layers before it gets to where the Todes are living .
Sounds like plant death to me .
Thanks for sharin
EB .
thanks for saying that retro.
can you share your experiences with that. were they intolerant of any worthwhile temperature for eradicating bms?
yeah i mentioned that that was for seeds before but i have been reading about hot water treatments for cuttings. im also not saying to do this, and i have not yet. what im saying is that i think its worth trying. it will require experimenting with finding a sweet spot that you get an exceptable level of survival in the plants while achieving 100% mortality of nematodes.
if there exists a time temp parameter that can achieve both it would be worth finding.
my guess is it will include a high level of plant mortality but not 100%. if you could get it under 80% loss of plants it would be a usable meathod for reviving a "clone-only" that would other wise be lost. if its a ,matter of treating clones to stop dudding for the purpose of flowering, i would suggest scrapping them and cleaning the room and using clones that dont have nematodes. my pursuit of a cure is for establishing a fresh start not for treating dudding plants for the purpose of flowering them.
i do however feel that needs to be figured out as well. i just dont think it would be reliable to try until its been shown to work in a way that doesnt set them back so far its not worth it. i personally would just discard a dudding plant from my line up if it was in a batch needed for flowering.
until further notice anyway.
my guess is that will change soon with all these brilliant and motivated folks working on solutions,
i like being part of a thread with such a wide range of smart talented growers working on a puzzle. everyone of you all are badasses. thanks for playing.
can you share your experiences with that. were they intolerant of any worthwhile temperature for eradicating bms?
yeah i mentioned that that was for seeds before but i have been reading about hot water treatments for cuttings. im also not saying to do this, and i have not yet. what im saying is that i think its worth trying. it will require experimenting with finding a sweet spot that you get an exceptable level of survival in the plants while achieving 100% mortality of nematodes.
if there exists a time temp parameter that can achieve both it would be worth finding.
my guess is it will include a high level of plant mortality but not 100%. if you could get it under 80% loss of plants it would be a usable meathod for reviving a "clone-only" that would other wise be lost. if its a ,matter of treating clones to stop dudding for the purpose of flowering, i would suggest scrapping them and cleaning the room and using clones that dont have nematodes. my pursuit of a cure is for establishing a fresh start not for treating dudding plants for the purpose of flowering them.
i do however feel that needs to be figured out as well. i just dont think it would be reliable to try until its been shown to work in a way that doesnt set them back so far its not worth it. i personally would just discard a dudding plant from my line up if it was in a batch needed for flowering.
until further notice anyway.
my guess is that will change soon with all these brilliant and motivated folks working on solutions,
i like being part of a thread with such a wide range of smart talented growers working on a puzzle. everyone of you all are badasses. thanks for playing.
edit i wanted to see under 80% loss of plants not 20%. if 2 out of every 10 cuttings survived you would get a signifigant number of nematode free moms from a tray.
I think we need to develop some predatory nemasharks with lasers on their head.
Wonderful... so even if we do kill them inside of the plant and soil they will still be lurking around the house/warehouse in stasis. So the IPM will be based on control rather than eradication?
Nematodes are the only plant pests capable of this...
HIV for indoor grows?
Nematodes are the only plant pests capable of this...
HIV for indoor grows?
Ha, Ha! I was going to mention "sea Monkeys" in my post, but figured no one would know what I was talking about. They are actually desiccated brine shrimp. They used to be in all the comic books. Guy made a fortune selling them. People complained because they died in a few days.
i disagree.
i dont think its impossible to clean the surface of your room.
i periodically dip all my pots in hot water.
mopping with reall hot water and using a steam cleaner is not a very hard regimen to follow. wouldt be to hard to clean out a room and maybe even heat treat before you bring in new nematode free plants.
You are going to have to burn all plant material. Soil can be microwaved, but probably not worth the trouble. Room can be heat treated when empty, and you can steam clean it. This will kill spores (desiccated nematodes).
This site sells heat machines for killing any pests:
www.pestheat.com
I'm sure I could sterilize rooms, I just did that in prep for the next run, and have a successful harvest with nematode free plants... but houses have lots of nooks and crannies. What if I move something in the garage or whatever, get some dried todes on me, and then tend to a mother room and unknowingly infect them?
My point is just that because of their ability to dry out and go into stasis it'll be very hard to 100% eradicate all forms of them from a spot. Even if you're able to successfully flower healthy rooms, the spot is still infected and potentially spreading them to other growers/locations. There's still a chance for them to come back full force given enough time and the right conditions.
My point is just that because of their ability to dry out and go into stasis it'll be very hard to 100% eradicate all forms of them from a spot. Even if you're able to successfully flower healthy rooms, the spot is still infected and potentially spreading them to other growers/locations. There's still a chance for them to come back full force given enough time and the right conditions.
Hot water treatments are used in greenhouses to kill BMs on peppers, @ temps of 115F. However, this does not work on Cannabis. I tried it, and it ruined the plants.
120F in the room will kill BMs though, without harming plants.
See post 1327, re: nematodes.
Stay away from SS. He's the vector.....
Is that a joke? I thought we were done with all that BS. Are we telling jokes or having a conversation about nematodes?
I don't know him or anyone else on IC, so if that's a real suggestion then no he's not the vector.
whatthe215.....
Get yourself some chitosan oligosaccharide.... I'm already seeing results from it... faster than anything else bro
Chitosan is #1 product for Nematodes recommended by the Chinese
Get yourself some chitosan oligosaccharide.... I'm already seeing results from it... faster than anything else bro
Chitosan is #1 product for Nematodes recommended by the Chinese
i hear you on that. and i guess its the same as getting in the first place. its always a possibility. i will say, that it must not be that ewasy or every oone would have them and everyone who ever did still would in 100% of all thier plants. there are people who for whatever reason were able to toss the plant and keep going. bug free. and that was before even knowing what they were.
thats assuming that this was the problem and its seems highly likely but at this point the jury is still out. you and ss are the only confirmed cases to date. it could be a coincidence although i doubt it. im not certain but i think i had this a while back and i dont currently. hl45 is dud free i believe. ssl reported he's ridden himself of them but if you read his clean up effort it was hella thorough.it must not be the easiest to spread that way even though its techncally possible. im guessing a thoroug cleaning would at the very least signifigantly raise your chances of avoiding reinfection.
i am turning to t.c. as part of my ipm.
unfortunately i think its one of the best tools one can have in the fight against current and emerging pests and diseases in this new era of growing. im biting the bullet as we speak and building a flow hood and am seriously considering a pcr thermal cycler.
ive found a pretty decent blog on building a cycler for 90 bucks. you can be your own lab for very little money.
i dont think my flow hood will cost me more than a few hundred bucks.
but i agree this is overwhelming.
Joke. Did you not see the "big grin" emoticon?
Lighten up.....I think if you keep Kontos in your mothers, you will be fine. Also, probably not a good idea to use beds indoors, as it makes spreading of any pathogen easier. Separate pots make more sense, IMO. Preferably Hempy Buckets. Only thing out yielding them would be DWC, which is not my cup of tea (not knocking them though). With separate buckets, if one plant is having problems, get it out of there.
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