No as BM has been show to also cause Dud's, and a few other pathogens that cause similar problems.
Life is seldom as simple as only one problem.....
-SamS
Life is seldom as simple as only one problem.....
-SamS
Nematodes 100%
Take it from those that have the problem and have had it for quite sometime
The link to that awesome book I posted earlier will help anyone understand this problem much more clear....
For the record...
Broad Mites do not cause this type of issue... you can have BM in flower and kill em off ... still harvest dank....not the case with stem nematodes...
Again.... DUDs are not from any MITE.... I would scope my plants everyday for at least an hour for the last few years.... I had BM's and I can assure you they are a joke and as easy to kill as Fungus Gnats/Spider Mites... When your enemy isn't visible until you gut your plants open...that's next level battle..
Look how many people were so off on the problem... crazy shit
Stem nematodes enter bud tissue and migrate into developing buds. Infected stems become enlarged and discolored, nodes swell, and internodes become shorter than those on healthy plants. Alfalfa plants infected with the alfalfa stem nematode have stunted growth, fewer shoots, and deformed buds. As nematode populations increase, lower stems on infected plants may turn black. Long periods of parasitism during moderate temperatures and high humidity may cause stem blackening for 1 foot or more above the ground. Another typical sign of a stem nematode infection is the presence of "white flags," which are branches devoid of chlorophyll. White flags are caused when nematodes start moving to leaf tissue and destroy chloroplasts, leaving pale leaf tissue.
Speaking of coco I don't know if roots organic put soil mites in there blocked coco. My last block I just expanded had these little stupid looking white bugs that everytime I watered would float to the top of the coco and if you looked hard enough you would see them move. They had these little antennas that constantly moved with bulbous body's.
Anyone ever see these things before?? Are they beneficial? They would literally be all over the top of the coco. I did a drench of Azamax and they smiled at it. Then I hit them with insecticidal soap and mosquito dunks and those bastards live no more whatever they were.
just a guess, but those little white guys sound like springtails mike... they're harmless
thats what i thought but then someone said that bulb mites looked different, im not sure but they lookk like bulb mites to me too from pics. i should do another potato slice test.those look like onion bulb mites.... not exactly beneficial....
I haven't been following along to be honest... but does the above fit the description of the damage? If so, it is certainly stem nematodes.... however the above damage does not seem to be the damage shown in these "duds".... I've yet to see black stems with white leaves devoid of chlorophyll....
not tryin to be the turd in the punchbowl... but only a small portion of the damage seems to fit the scapegoat pest....
i wouldnt describe springtails as bulbous but here is a link to a pic of springtails
someone asked if these were aphids in the ra thread. im pretty sure these are springtails.
https://www.icmag.com/ic/picture.php?albumid=38481&pictureid=1279824
Broad Mites do not cause DUDs...by your own admission...you've never had BM or Stem Nematodes...
I was wrong about Phytoplasma... I made that quite clear..... but guess what I wasn't wrong about
reading other peoples problems and thinking you can diagnosis them without exp it yourself or being on the frontline in the trenches....doesn't make sense on any level...
as is the case with Broad Mites and Stem Nematodes....
The thread should move in the direction of killing stem nematodes...and nothing else
http://www.alibaba.com/product-detail/Kill-Stem-Nematode-and-Root-knot_1100726822.html
http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/prm7899
White Flagging-
White flag symptoms of single alfalfa shoots infected by the alfalfa stem nematode.
Go back and look at the pics in this thread...the ones in flowering
View Image
These microscopic worm-like pests primarily move through fields in water and infect the above ground portion of the plants (crowns and stems). Feeding damage includes stunted plants with swollen stems that just sit there, hardly growing. Additional symptoms include ‘white flagging’ where individual stems of infected plants appear white in the field, standing out like sore thumbs. Eventually, stand loss occurs when the nematodes injure the crowns, resulting in secondary pathogens moving in and causing crown rot.
Management Recommendations
Equipment sanitation: Infected hay harvesting equipment will carry nematodes in plant and soil residue, so avoid moving contaminated farm machinery from stem nematode infested to clean fields. Harvest nematode-free fields before infested fields. Clean equipment when moving from a stem nematode infested field to a clean field. This can be done using a high-pressure washer or blower, or by cutting grass hay prior to moving back into alfalfa.
Crop rotation: Alfalfa is the primary host for alfalfa stem nematode so rotation with non-host crops such as tomatoes, sunflowers, and wheat on a 2- to 4-year basis will reduce alfalfa stem nematode populations (longer rotations are better). Overseeding with grasses is not a rotation, since even a few alfalfa plants will continue to host the nematodes in the field.
Water management: Although this is hard to prevent in some cases, if water is moving off of infected fields, growers should attempt to prevent this water from moving to non-infected fields, or reduce runoff. High numbers of stem nematode have been found in irrigation and storm water runoff from infected fields. Where water is reused on fields, this may be a major source of infection for healthy fields.
Livestock: Uncomposted manure from animals fed stem nematode infested hay may be a source of this pest. Likewise, animals such as sheep grazing in the alfalfa for winter weed control can move the stem nematode around fields via tracking dirt on their hooves or in manure.
Pesticides: Unfortunately, no nematicides are currently registered for use against the alfalfa stem nematode in established alfalfa fields that control the nematode sufficiently to enhanced yields.
Severe infections can also reduce stem numbers and predispose plants to winterkill and other diseases such as bacterial wilt and Fusarium wilt.
I did go back, but didn't see many pics... however, assuming symptoms have been narrowed down to stem nematodes,
here are some sources:
Utah Plant Pest Diagnostic Laboratory - Alfalfa Stem Nematode Factsheet (pdf)
Oklahoma Cooperative Extension Service - Alfalfa Stem Nematode Factsheet (pdf)
University of Illinois College of Agricultural, Consumer and Environmental Sciences - Alfalfa Stem Nematode
and an interesting sidenote...