Dud Identification Collective Knowledge.

[amannamedtruth]

Well, I figure an ambient air heat treatment of 118-120 F for 30-60 mns oughta at least kill those above ground. The stem nematodes need a film of water to somehow transport themselves, making it difficult for them to retreat to the soil. I read that D. dipsaci is hardly found in soil. So any survivors somehow still in the soil may be further controlled with a large dump of Heterorhabditis bacteriophora into the soil and a post heat spray of Steinernema feltiae to the aerial parts of the plants...

If this isn't an effective control, I'd imagine a heat treatment during propagation+beneficial nematodes begining of veg and flower would be good IPM practice.

edit: nvmd read the last few paragraphs above

 

[papaduc]

 

[papaduc]

 

[high life 45]

Every bit of actual evidence in the thread suggests so. The pictures all look different. Like I said at the start, one plant was overfed, another was not properly revegged, another could have and should have been cut back.. etc etc...

I started the thread so I assume you are partially talking about my pics..I will agree that multiple causes can lead to duds, I cant agree that it was just "overfed, or not properly revegged, etc etc".

Nobody in this thread except me has seen this "witches broom" growth IRL... That alone is a discovery, yes it has been seen in hemp in other countries, but nobody else has reported it in medical cannabis with pics (to my knowledge)...even if I was overfeeding, or not properly reveggin that doesnt mean that the nodes should disappear. If you can tell us why you believe the nodes disappeared on only one strain you will be participating in the collective knowledge. Other folks have said, "its broad mites its broad mites, stupid thread," and again I say if you can tell me why the broad mites caused the nodes on only one strain to disappear you will be a participant...

As for me "growers error" is out the window and heres why;

the plants that were doing this (nodeless witches broom growth)



Got the same feed as the plants that were doing this (they look pretty happy)



And this (really small tree I know)

This plant was revegged, properly at that, and is gonna be pushing close to 7 mark the way things are looking.. The duds never went into flower, in fact they were in the same exact environment as this tree. Same amount of ac, on either side of a wall with 2.5x air exchange per a minute going between them, fed from the same res even.

All im asking is for participation as to why a plant grew without nodes due to grower error, broad mites, etc.. if its grower error, what was the error..

 

[Storm Shadow]

http://en.wikipedia.org/wiki/Ditylenchus_dipsaci

create galls

 

[high life 45]

+1 SS

I have seen plenty of galls before, cant really say that I have associated it with a problem before, I usually only see it in big multi# plants.

In fact usually the plant is very healthy and heavy full of resinous buds, when I see the galls, I always thought they were roots trying to poke out..and one of my best lab results coming in at 25%+ thc the stalk of the plant had galls..

Next time I harvest I will try and see if I can get a stem with galls identified for D. dipsaci..

I dont recall seeing and galls on my dud plant, but that doesnt mean todes were not in the stem..

 

[whatthe215]

http://en.wikipedia.org/wiki/Ditylenchus_dipsaci

create galls

View Image
View Image

Yup I have this on a few plants. I cut some of them off this morning and found nothing inside of them under the microscope.

I'ma go crazy with microscoping this afternoon, I got a sweet microscope camera that takes great photos and videos.

I wanna figure out where they like to hangout.


and yeah like HL45 I never associated them with dudding before.

 

[whadeezlrg]

I've also had galls on perfectly healthy plants, I always figured they were root's that never quite made it out of the stem tbh.

 

[IGROWMYOWN]

I've also had galls on perfectly healthy plants, I always figured they were root's that never quite made it out of the stem tbh.

Same here

 

[papaduc]

Those are not galls.

Put a root cube around the base where you see those bumps and watch what happens.

 

[Elmer Bud]

G`day Stormie

I don`t think they are Galls bro .
They are what I would call aerial roots . If you were to put medium up the stem above that level the roots would just go on growing into the medium .
Galls are usually concentrated in one spot .

Have you used Avid in your IPM cocktail ? It is a known Nematode killer as per Sam`s C n P .

Thanks for sharin

EB .

 

[amannamedtruth]

Just only use avid on veg plants**

 

[Storm Shadow]

Avid + pylon drench applied yesterday

 

[Sam_Skunkman]

I would be surprised if they were galls, but to be honest, if I could examine them for galls or potential root sites then I would be sure. Galls or root knots are often easier to see in roots, I have seen them in Cannabis I did not know the exact cause I suspected nematodes.
-SamS

 

[xxxstr8edgexxx]

Avid + pylon drench applied yesterday

what dosage?

 

[RetroGrow]

G`day Stormie

I don`t think they are Galls bro .
They are what I would call aerial roots . If you were to put medium up the stem above that level the roots would just go on growing into the medium .
Galls are usually concentrated in one spot .

Have you used Avid in your IPM cocktail ? It is a known Nematode killer as per Sam`s C n P .

Thanks for sharin

EB .

Exactly. Those are not galls. Was going to post that earlier when I first saw it but had stuff to do. You often see those on cuts when you put them in a cloner. Definitely NOT caused by Ditylenchus dipsaci. Those are seen on healthy plants all the time. Didn't know the name on them so was waiting to research before posting. I have always just called them "nubs", or "pre-roots".

 

[Storm Shadow]

what dosage?

1/4 tsp of each per gallon ... I also added the Chitosan ... Ive been adding it to everything...

Im going to foliar spray with Essentria IC3 ...

Rosemary Oil (10.0%) Geraniol 600 (5.0%)Peppermint Oil (2.0%)

Those Bastards don't like Geraniol at all.....

 

[Elmer Bud]

I would be surprised if they were galls, but to be honest, if I could examine them for galls or potential root sites then I would be sure. Galls or root knots are often easier to see in roots, I have seen them in Cannabis I did not know the exact cause I suspected nematodes.
-SamS

G`day Sam

Most / all cells in the plant can turn to roots if given the right conditions ? Yes .

I`ve seen roots grow on a branch that had a bandage / splint on it .To support a broken limb .

Deep planting ie burying the stem seems to work well as long as the medium drains well . And air layering ?

Thanks for sharin

EB .

 

[whatthe215]

OK I got pics. It took me an hour to find them, I had to look at the bottom 1" of the stem where roots are forming to find them. Like before, I found them in an outer layer.

First, pics of the sample where I finally found them and a couple not so clear photos of them. They're easy to see once you find their hiding spot... they move a lot.

 

[whatthe215]

Photos taken just a couple seconds apart... they move. Lots of flopping and squiggling.