Dud Identification Collective Knowledge.

[Elmer Bud]

G`day 215

That link re the Alfalfa nematode says there were increased numbers at the irrigation heads . They like it damp .

Also when they sense the plant dying they retreat back into the soil ...

Thanks for sharin

EB .

 

[Loc Dog]

Here is some info on stem and bulb nematode, in garlic -

http://theplantlady.com/veggies/91-nematodes/268-stem-and-bulb-nematode.html

Maybe Adubb has something in it, that attracts nematodes, and/or is extremely vulnerable. They speak of disease resistant varieties, so there must be disease prone varieties.

I am no expert, just my thoughts.

 

[RetroGrow]

G`day 215

That link re the Alfalfa nematode says there were increased numbers at the irrigation heads . They like it damp .

Also when they sense the plant dying they retreat back into the soil ...

Thanks for sharin

EB .

That link also states that alfalfa is the ONLY host. This is wrong, so take them with a grain of salt.

 

[whatthe215]

did you just pull the outer layer of skin on the stem ? or cut a cross section of the stem, have a scope coming tomorrow and want to know .

just the outer layer i think. they were easier to find in damper samples.

retro i agree it's easy for them to spread in beds especially if drainage isn't perfect.

G`day 215

Also when they sense the plant dying they retreat back into the soil ...

yeah i went back to check stems again 12 hours after i cut the plants and they were much harder to find. i had to go lower in the stem to find a couple.

 

[Elmer Bud]

G`day 215

I agree with Retro .
They do say exclusive to Alfalfa .
But that was my summary of what I read .

Been very hot and dry in Cali this summer ?

I asked Stormie if the infection is the same summer -winter . But he was too busy pickin leaves off seedlings to reply to me .

Thanks for sharin

EB .

 

[RetroGrow]

G`day 215

I agree with Retro .
They do say exclusive to Alfalfa .
But that was my summary of what I read .

Been very hot and dry in Cali this summer ?

I asked Stormie if the infection is the same summer -winter . But he was too busy pickin leaves off seedlings to reply to me .

Thanks for sharin

EB .

Yes, that article is mistaken calling them Alfalfa Nematodes, and that they are exclusive to alfalfa. Their proper name is Ditylenchus dipsaci, or stem nematodes, and they infect many crops, including cannabis.
"Six nematodes are known to infest Cannabis. All species attack roots except one.
Root knot nematodes embed themselves in roots and induce plants to form giant cells or syncytia. Syncytia swell into root galls and stimulate formation of adventitious rootlets, creating a bushy root. Compound galls arise on larger roots forming "root knots": hypertrophied roots with a rough surface. The southern root knot nematode, Meloidogyne incognita, has been reported on fiber cultivars in Europe, the former USSR, Brazil, and the southern United States. M. incognita is the most widely distributed worldwide, and attacks hundreds of hosts. Two other species are rarely reported: the northern root knot nematode Meliodogyne hapla and the Java root knot nematode Meloidogyne javanica.

The stem nematode, Ditylenchus dipsaci, uniquely lives above the ground and does not infest roots. Initial symptoms arise in stems, branches and leaf petioles, which swell and become chlorotic. Stems subsequently become twisted and distorted with shortened internodes. Plants are stunted. D. dipsaci is found in North America, southern Africa, Australia, and temperate areas of Asia. But Cannabis disease has only been described from fiber varieties in Europe.
Looks like we need to update the literature on these, although they don't seem to be a problem in Europe. Southern California has become a hotbed for pathogens, because of the warm climate, and Progressive Options.

 

[Loc Dog]

This is a link to numerous cannabis diseases, with symptoms and treatments -

http://www.marijuanapassion.com/forum/archive/index.php/t-43657.html

 

[high life 45]

Please keep the diets and politics out of this thread.

Captain planet was just here and I would hate to scare him off so soon..stay collected folks.

 

[Sam_Skunkman]

Right. So enjoy your rotting cow carcasses while Rome burns. Geneticists should come up with a plague to wipe them off the face of the earth. Global warming solved. No more clear cutting forests to plant more soybeans to feed more cows, no more devastation of the habitats of numerous species, including orangutans, our nearest relatives. And no more wasted water, no more pollution of our oceans with pesticides and fertilizers.
That bloated hypocrite, Al gore raises cattle for the tax break. The cattle lobby would rather see the world destroyed than them lose their profits. To hell with them. By the way, cow carcasses are filled with hormones, antibiotics, and all manner of pesticides which they ingest from their food source. Poison, and extremely carcinogenic.

There's still fish and poultry, although fish are in a major decline, as the oceans are turned into cesspools. Population still exploding, so it's only going to get worse.

WOW, what a rant...
Do you believe in personal liberty?
If you were against Cannabis would you be calling for Geneticists to come up with a plague to wipe it off the face of the earth?
To be honest, thinking like that is worse then the problem you hate.
I will admit I eat meat, I love it, I was vegetarian for 12 years and raised most of my own food, but I got tired of it. But I only buy non-hormone, non-antibiotic raised beef from an organic beef producer in Arkansas that ships to Holland. I also grow my own veggies, I have for decades.
Hey, all you vegetarians what about the water used to grow California rice, what a crime hey? Do you eat rice RetroGrow?
It takes 5000 liters of water to produce a kilo of rice, 2,500 gallons to produce a pound of beef. So about 4 times the water but beef also has a way higher nutritional value then just rice. Anyway growing rice in Calif is maybe something that has to stop?
Maybe in the whole world? Other crops using drips instead of sprayed water in the air will be the future, like in Israel, the problem is that California water has been subsidized to be cheap for agriculture for decades. 95% of the water in California is used by agriculture, most is wasted.

"By the way, cow carcasses are filled with hormones, antibiotics, and all manner of pesticides which they ingest from their food source."

Sure and cheap mexican pot may have who knows what sprayed on it, so should all Cannabis be banned because of this?
If you can't find beef with zero hormones, zero antibiotics, and zero pesticides I don't think you have tried. You just have to pay more to get it done right. Sound familiar? It is the same with fish or organic veggies, I am sure you can find poisoned fish, veggies in most markets, do you buy them? And anyone that eats fish is helping eliminate fish from our world, wise up and look at the loss in the oceans.
What is worse polluting the earth with cow bio-gas etc or eating all the species of fish to the point they can not recover? You tell me, as I think they both are mad, but the real core of the problem is the population it is way to high for us all to live like we all want to live, maybe you should just get to the root of the problem and wish for Geneticists to come up with a plague to wipe most of mankind off the face of the earth?
That would help the earth........
-SamS

 

[jw23ck11]

WOW, what a rant...
Do you believe in personal liberty?
If you were against Cannabis would you be calling for Geneticists to come up with a plague to wipe it off the face of the earth?
To be honest, thinking like that is worse then the problem you hate.
I will admit I eat meat, I love it, I was vegetarian for 12 years and raised most of my own food, but I got tired of it. But I only buy non-hormone, non-antibiotic raised beef from an organic beef producer in Arkansas that ships to Holland. I also grow my own veggies, I have for decades.
Hey, all you vegetarians what about the water used to grow California rice, what a crime hey? Do you eat rice RetroGrow?
"By the way, cow carcasses are filled with hormones, antibiotics, and all manner of pesticides which they ingest from their food source."
Sure and cheap mexican pot may have who knows what sprayed on it, so should all Cannabis be banned because of this?
If you can't find beef with zero hormones, zero antibiotics, and zero pesticides I don't think you have tried. You just have to pay more to get it done right. Sound familiar? It is the same with fish or organic veggies, I am sure you can find poisoned fish, veggies in most markets, do you buy them? And anyone that eats fish is helping eliminate fish from our world, wise up and look at the loss in the oceans.
What is worse polluting the earth with cow bio-gas etc or eating all the species of fish to the point they can not recover? You tell me, as I think they both are mad, but the core of the problem is the population it is way to high for us all to live like we all want to live, maybe you should just get to the root of the problem and wish for Geneticists to come up with a plague to wipe most of mankind off the face of the earth?
That would help the earth........
-SamS

Couldn't have said it better myself!

 

[Storm Shadow]

So this thread has taken a U-Turn into nothing about the TOPIC

Start a new thread about water and drought for real..... this thread is about science and saving plants from evil Nematodes

I let the DUDs I have in veg sit in Chitosan Water for 24 hours...... Im about to pull out every possible option with the exception of Fumigation and eliminate these bastards on the frontline....

Spinosad (Conserve SC) and Pylon Drench coming up next

Im going to also try injecting Chitosan into the trunk of the of the Plant where these Nematodes are living it up

 

[Sam_Skunkman]

I agree no more off topic posts, I guess he got me going?
You need a systemic, organic if you can get one, maybe Bio-based?
I have no suggestions other then trying predator nematodes?
-SamS

 

[Sam_Skunkman]

http://www.cabi.org/isc/datasheet/19287

All about how to ID, control, and find on seeds. Great Data!
They list Cannabis as a host plant along with a whole lot more plants.


Ditylenchus dipsaci
Stem Nematode (this is the Alfalfa Stem Nematode) also called the Long Stem Nematode

Natural enemies..................Type
Dactylella lysipaga................Predador
Drechmeria coniospora.........Pathogen
Hirsutella rhossiliensis..........Pathogen
Rhizoglyphus echinopus.........Predator

 

[Storm Shadow]

I'm going to email this expert and run a few ideas by him on these little bastards ... Dude is the man on these critters

http://www.plantpath.iastate.edu/tylkalab/personnel/david-soh

Tylka Nematology Lab ISU Plant Pathology and Microbiology / Tylka Nematology Lab / David Soh

David Soh

Research Associate I
Department of Plant Pathology
351 Bessey Hall
Iowa State University
Ames, IA 50011
Phone: 515-294-5094
Fax: 515-294-9420
Email: dsoh@iastate.edu
Education:

• B.S., Plant Pathology, Iowa State University, 1983.
• M.S., Plant Pathology, University of Wyoming, 1986. Thesis: Efficacy of nematicide seed treatment on control of seedling blight caused by the stem nematode (Ditylenchus dipsaci Kuhn, Filipjev) and the northern root knot nematode (Meloidogyne hapla Chitwood). Monoxenic culture and pathogenicity of the chrysanthemum foliar nematode (Aphlenchoides ritzema-bosi Schwartz, Steiner) on alfalfa.

Employment History:

• Laboratory Technician II, Iowa State University 1988 - February 1991.
• Research Assistant I, Iowa State University, Ames, IA 50011. 1992 - present.

Current Job Responsibilities:

• Heterodera glycines (SCN) and Phialophora gregata (Brown stem rot) interaction research
• SCN resistance screening
• HG type tests and race tests
• Soybean bioassays
• Maintenance and calibration of laboratory equipment.

Publications:

• Gray, F.A. and Soh, D.H. 1986. Efficacy of a nematicide seed treatment in controlling seedling blight of alfalfa incited by Ditylenchus dipsaci and Meloidogyne hapla. Phytopathology 76:1139.
• Gray, F.A. and Soh, D.H. 1989. A nematicide seed treatment to control Ditylenchus dipsaci on seedling alfalfa. Journal of Nematology. 21:184-1 88.
• Kraus, G.A., Vander Luow, S.J., Tylka, G.T. and Soh, D.H. 1996. Synthesis and testing of compounds that inhibit soybean cyst nematode egg hatch. Journal of Agricultural and Food Chemistry. 44:1548-1550.

 

[Storm Shadow]

http://www.certisusa.com/pdf-labels/MeloCon_Label.pdf

MeloCon® WG bionematicide

Active Ingredient: Paecilomyces lilacinus strain 251*

http://www.7springsfarm.com/melocon-wg-20-lb-special-order-item-call-for-a-shipping-price/

 

[yortbogey]

plz keep the thread on topic....DUD's....
if U wanna talk BEEF.... start another thread

 

[Grizz]

Damn SS main lining the plants ? always wanted to set up a iv bag with ferts just to see if it would work, good luck with these zombie plant duds.

I am wondering if maybe some coco we buy might have these little fuckers in it.
whats you guys thoughts on that ?

 

[high life 45]

If its in the coco, a simple heat treatment of the coco in the bag should get rid of alot of the potential problems...Ive done the heat treatments with great success against bms and was able to grow giant healthy plants even in hydro grows with out water chillers.

Personally I am seeing a good ipm program that might come out of this thread.....I will be growing with swirskii mites for the rest of my life. Its not worth the risk as bms are becoming more and more prevalent in my area. Its too the point where you might get them from going to the grocery store instead of the grow shop.

I did cycles and rotations of all the 'cides and heat treatments and swirskiis were far more effective. Perhaps a heat treatment of the coco while its still in the bag and then a nice predatory nematode treatment immediately after. Im wondering if a bacterial dominant tea might prevent any fungal vectors of duddism, since bacteria eats fungi. Rotations of spinosads and predatory nematodes might be of interest also. ....With swirskiis, I figure if they are already on my plant they will eat any bms before they can take ahold and start reproducing. I have been calling it the "bouncer mentality"

Also fyi swirskiis can survive and reproduce on castor bean plants. So growing those might be a good idea for those who want to take it a step further. If I had a big green house, I would surely have a castor plant in every corner.

 

[oceangrownkush]

If its in the coco, a simple heat treatment of the coco in the bag should get rid of alot of the potential problems...Ive done the heat treatments with great success against bms and was able to grow giant healthy plants even in hydro grows with out water chillers.

Personally I am seeing a good ipm program that might come out of this thread.....I will be growing with swirskii mites for the rest of my life. Its not worth the risk as bms are becoming more and more prevalent in my area. Its too the point where you might get them from going to the grocery store instead of the grow shop.

I did cycles and rotations of all the 'cides and heat treatments and swirskiis were far more effective. Perhaps a heat treatment of the coco while its still in the bag and then a nice predatory nematode treatment immediately after. Im wondering if a bacterial dominant tea might prevent any fungal vectors of duddism, since bacteria eats fungi. Rotations of spinosads and predatory nematodes might be of interest also. ....With swirskiis, I figure if they are already on my plant they will eat any bms before they can take ahold and start reproducing. I have been calling it the "bouncer mentality"

Also fyi swirskiis can survive and reproduce on castor bean plants. So growing those might be a good idea for those who want to take it a step further. If I had a big green house, I would surely have a castor plant in every corner.

That is good info! Hadn't heard the Castor Bean one yet, I also can't seem to find this anywhere else do you know where you read it?

 

[xxxstr8edgexxx]

ha you just answered one of those google searches ive been meaning to do. when visiting organic and permaculture influenced farms in tropical areas ive always been puzzled by the inordinate amount of castor plants i see all over the place. too many to be accidental and not enough for it to have been an intentional crop.i figured there was a a reason. thanks. forgot about that.

If its in the coco, a simple heat treatment of the coco in the bag should get rid of alot of the potential problems...Ive done the heat treatments with great success against bms and was able to grow giant healthy plants even in hydro grows with out water chillers.

Personally I am seeing a good ipm program that might come out of this thread.....I will be growing with swirskii mites for the rest of my life. Its not worth the risk as bms are becoming more and more prevalent in my area. Its too the point where you might get them from going to the grocery store instead of the grow shop.

I did cycles and rotations of all the 'cides and heat treatments and swirskiis were far more effective. Perhaps a heat treatment of the coco while its still in the bag and then a nice predatory nematode treatment immediately after. Im wondering if a bacterial dominant tea might prevent any fungal vectors of duddism, since bacteria eats fungi. Rotations of spinosads and predatory nematodes might be of interest also. ....With swirskiis, I figure if they are already on my plant they will eat any bms before they can take ahold and start reproducing. I have been calling it the "bouncer mentality"

Also fyi swirskiis can survive and reproduce on castor bean plants. So growing those might be a good idea for those who want to take it a step further. If I had a big green house, I would surely have a castor plant in every corner.