Dud Identification Collective Knowledge.

[papaduc]

DUD means plant that is infected by Stem Nematode.....don't mix it up

We'll have to agree to disagree on that.

We could argue over the definition, but I couldn't care what names you put on things and I'm sure what I call my ladies doesn't interest you either. It's a small point.

What does matter is that you say you've discovered a certain species of stem nematode and you have found a way to stop the problems they cause by using chitosan. That's the most interesting thing.. or at least it would be if you would show us what actually is happening in your room right now.

Your post contains some pretty emotive words regarding cash cropping and people's livelihoods... But at no point have you had them identified and at no point have you documented any of your results to either show either the problem or the effects of what you're now saying is the solution.

Getting the pests identified, then showing the problems they cause to young clones, and therefore how to identify if you might have them and thus save yourself a whole harvest cycle of wasted time, then showing the effects of chitosan, is the surely the best and only way to help those growers who might be dealing with the same problem.

If it's in your power to do it, as the person with both the problem AND the solution, that 's exactly what you should be doing right now. IMO.

 

[BB420]

so I was looking at my sad looking freshly planted seed a few days old and sure I saw something so I grabbed my200x usb scope to find this little white worm thing eating my baby seedling is this a stem nematode ? I have been looking for over a year never seen any eggs just a bit of bud rot now and again my roots do look a bit brown and take ages to come out the drainage holes im glad I could have snapped a pic of the little f**ker thanks peeps

 

[drfarm]

http://www.bioimages.org.uk/html/p9/p97099.php

I would vote not, but even this pic ^ is unconfirmed. Unless an egg was attached when you wet the seed, i dont think they are attracted to seeds per se. This is all new to me, but ive read that enzyme tests are used to confirm it so maybe difficult to guess.. KILL ..lol

 

[Storm Shadow]

http://www.science.gov/topicpages/e/exhibited+antifungal+activity.html

Lectins but not antifungal proteins exhibit anti-nematode activity



A variety of lectins and antifungal proteins were tested for toxicity against the plant parasitic nematodes Ditylenchus dipsaci and Heterodera glycines. It was found that lectins from the mushrooms Xylaria hypoxylon, Agrocybe cylindracea and Tricholoma mongolicum (TML-1) were the most potent against D. dipsaci, with EC(50) being 4.7, 9, and 20mg/ml, respectively. Lectins from Pseudostellaria heterophylla, samta tomato, and the mushrooms T. mongolicum (TML-2), Ganoderma lucidum, and Boletus edulis, and antifungal proteins from Ginkgo biloba toward D. dipsaci and pumpkin Cucurbita moschata had much lower anti-nematode potencies and could be considered as inactive for practical purposes. All lectins except that from P.heterophylle were potent against H.glycines. PMID:21784014
Zhao, S; Guo, Y X; Liu, Q H; Wang, H X; Ng, T B

2009-09-01

 

[RetroGrow]

http://www.bioimages.org.uk/html/p9/p97099.php

I would vote not, but even this pic ^ is unconfirmed. Unless an egg was attached when you wet the seed, i dont think they are attracted to seeds per se. This is all new to me, but ive read that enzyme tests are used to confirm it so maybe difficult to guess.. KILL ..lol

They live INSIDE the seeds. That's how they get passed through seeds.
The pictures you posted do look like them.
Please send sample to the nematode lab for confirmation.

 

[whatthe215]

BB420, that worm looks a bit fat and large to be d. dipsaci. What part of the plant did you take the photo from? That pic looks like it's ON a leaf?

Maybe it's the perspective throwing me off.

 

[BB420]

yes it was ontop of the cotyledons/trueleafs the plant was about 3 days old with a real thin stem so not sure what it is but the plant looked sad so thought I would microscope it and that's what I found

 

[acridlab]

^^Looks like enchytraeids,, I mentioned them earlier.. they looove seedlings..

 

[whatthe215]

interesting. were you able to see it without a scope? even just a little?

agreed acrid, BB420 google enchytraeidae for better pictures.

 

[drfarm]

They live INSIDE the seeds. That's how they get passed through seeds.
The pictures you posted do look like them.
Please send sample to the nematode lab for confirmation.

http://www.lsuagcenter.com/NR/rdonl...96988/43SeedTreatmentsVegetables2014FINAL.pdf

 

[BB420]

interesting. were you able to see it without a scope? even just a little?

agreed acrid, BB420 google enchytraeidae for better pictures.

I thought I saw the baby leaf move im sure it did thanks for all your help

 

[redlaser]

It turns out that 110-111 degree water is not a death sentence for cannabis cuttings. got three out of three to live at 110-111 for 35 minutes. Another set of fifteen that went up to 112.5 only had 20% survival though. (to be expected) http://www.ipm.ucdavis.edu/PMG/r280200111.html http:/www.ipm.ucdavis.edu/PMG/r280400211.html

 

[harry74]

¿Can someone give my his opinión please?

It´s a BB male; I think that under stress ( I sprayed a chemical for spidermite), develops that White spots and the leaf starts to die slowly....starts on the lower leaves and goes up.

 

[warriorscholar]

Some obviously very knowledgeable people in this thread and very glad I came across this a lil while back...opened my eyes up to much deeper issues than just the normal grower warns you about - spider mites and powdery mildew.

I've learned a lot here, but let me ask a basic question. And I'm asking it here because you're the ones id trust to know for sure, even though this isn't related to the info in this thread. First time I ever worked with it so it's new to me, but damn...pretty messed up from about 5 hours of messing around with it. Talking about panda film ....the thick stuff. Hung it up all around...turned lights on(could smell plastic burning even tho lights weren't close, 1k watts btw) and thought nothing of it. I mean everyone uses it, no big deal right? But if this shit affected me this much in one night, is it really safe for plants? And bare with me here, I know this thread is focusing on much deeper issues but anyone here avoid this when dealing with more lighting? By the way, I'm sure I'm more sensitive than others (allergies/asthma) but I've been around tons of nasty shit and shook it off. Messing around with the poly( ceilings, walls, floors) all night almost knocked me out. Dizzier than ever, eyes burning...headache...breathing...etc. Been hours now and still hasn't gone away. Not worried about myself, I know I'll be fine, but just figured if it could mess me up that much it can't be great for growing.

I looked it up, saw a few things....but really hard to take advice from most who have no clue about their yield even suffering let alone what the cause is. So I ask my simple question here. I'd appreciate any feedback, so I know whether to take this shit down that I almost killed myself over or if it will be fine after being ventilated. Or any info.

Kindly ease my mind before getting back to your groundbreaking research.

 

[papaduc]

What you're describing could just as easily be the lights if they were on when you were in there. Be careful working in your grow when the lights are on, just the intensity of the light off a reflective surface is bad for your eyes, even without looking at the bulb. Use a basic fluoro for light for work hours. If you get the same symptoms then,it might be something off gassing.

 

[xxxstr8edgexxx]

its really hard to keep threads on topic when people try. this is a little bit of a fopaux imo.
there is a general infirmary section where you could start a thread or look with the native or the google searh engine where you would find the topics of offgassing and spidermites covered in exhaustive depth on icmag. there is stickies for both i believe.

Some obviously very knowledgeable people in this thread and very glad I came across this a lil while back...opened my eyes up to much deeper issues than just the normal grower warns you about - spider mites and powdery mildew.

I've learned a lot here, but let me ask a basic question. And I'm asking it here because you're the ones id trust to know for sure, even though this isn't related to the info in this thread. First time I ever worked with it so it's new to me, but damn...pretty messed up from about 5 hours of messing around with it. Talking about panda film ....the thick stuff. Hung it up all around...turned lights on(could smell plastic burning even tho lights weren't close, 1k watts btw) and thought nothing of it. I mean everyone uses it, no big deal right? But if this shit affected me this much in one night, is it really safe for plants? And bare with me here, I know this thread is focusing on much deeper issues but anyone here avoid this when dealing with more lighting? By the way, I'm sure I'm more sensitive than others (allergies/asthma) but I've been around tons of nasty shit and shook it off. Messing around with the poly( ceilings, walls, floors) all night almost knocked me out. Dizzier than ever, eyes burning...headache...breathing...etc. Been hours now and still hasn't gone away. Not worried about myself, I know I'll be fine, but just figured if it could mess me up that much it can't be great for growing.

I looked it up, saw a few things....but really hard to take advice from most who have no clue about their yield even suffering let alone what the cause is. So I ask my simple question here. I'd appreciate any feedback, so I know whether to take this shit down that I almost killed myself over or if it will be fine after being ventilated. Or any info.

Kindly ease my mind before getting back to your groundbreaking research.

[URL=https://www.icmag.com/ic/picture.php?albumid=49442&pictureid=1319365&thumb=1]View Image[/URL] [URL=https://www.icmag.com/ic/picture.php?albumid=49442&pictureid=1319368&thumb=1]View Image[/URL]

[URL=https://www.icmag.com/ic/picture.php?albumid=49442&pictureid=1319367&thumb=1]View Image[/URL]

¿Can someone give my his opinión please?

It´s a BB male; I think that under stress ( I sprayed a chemical for spidermite), develops that White spots and the leaf starts to die slowly....starts on the lower leaves and goes up.

 

[warriorscholar]

Yeah I understand, aware it's annoying when things go off topic especially when it's a simple question. But this was definitely my last resort. I much rather google and do my own research than wait for an answer, problem is I'd rather get advice from people who actually know when their yield is affected, etc.

Common sense tells me there's way too many people using it for it to have much of an affect, but then again I thought there might be a chance all of you are focusing so much on the issues in this thread , that you missed the real prob all along. Poly film toxicity.

Kidding..but seriously last thing I need is to learn all these things in this thread(and broadmite/russet mite ones) and take all precautionary measures for them only to make a dumb mistake by trying something new. Realize the simplicity of the question, but since I've never even got my money back on a 5 dollar scratch off, it's the little things I need to make sure of. So figured I'd ask here and accept the few stones thrown . The bruises would recover, but sticking 2 week old seedlings in this environment( need to be put in there asap) if not suitable wouldn't.

Apologies for the off track post..back on topic.

 

[xxxstr8edgexxx]

why dont you read the offgassing thread.

 

[Yesca73]

thrips @Harry

Spinasod works great
silver streaks with black specks looks to be the damage

 

[BB420]

so I have checked all my other plants cutting into the stem and have not found anymore microscopic worms so im sure it came from the seed itself even though most "breeders" say that virus/worms / parasites cannot be passed on through seeds ! EDIT I wished I could have sent a sample to the lab for testing !