Preventing and Eliminating Hop Latent Viroid from Cannabis with Zamir Punja, PhD
Ғылым және технология
Dr. Zamir Punja is a Professor of Plant Biotechnology at Simon Fraser University in Canada. His research interests include the etiology and management of plant diseases on vegetable and horticultural crops, and the applications of plant biotechnology for disease management. Since 2018, his work has shifted to researching cannabis, where his group has described a range of previously unreported pathogens affecting the crop and has evaluated various methods for disease management.
Zamir’s latest research has been focused on a pathogen that is spreading throughout cannabis cultivation facilities worldwide, Hop Latent Viroid. HLVd is a relatively new pathogen. It was first identified in hops in the late 80s and was detected in cannabis in 2018. It is also quite small, only 40 nanometers in size. Still, in just five years this tiny pathogen has managed to infect as much as 90% of cannabis facilities in California alone. All while reducing yields by as much as 50% and costing the industry $4 billion in losses.
Zamir’s shared his latest research on HLVd at CannMed 23, which is the basis of our conversation today. I have put a link to the video of his presentation in the show description.
Our conversation covers:
0:00 Introduction
4:38 Why Zamir calls HLVd the “COVID of Cannabis”
8:06 Evidence that HLVd spreads through seed
10:42 What is it doing to cannabis plants?
13:17 How hop growers dealt with HLVd
16:06 Lack of genetic diversity in HLVd
19:50 Up close view of trichomes on HLVd-infected plants
29:57 Treatment and Remediation options
32:53 HLVd Testing protocols
38:41 Sampling recommendations
48:05 Hope for the Future
50:30 Related Resources
52:47 Outro
Thanks to This Episode's Sponsor: PhenoXpress
PhenoXpress offers low-cost genetic testing services to cultivation facilities. Using qPCR technology, PhenoXpress helps cutlivators identify genetic traits, such as plant sex, while plants are still in the seedling tray. They can also identify plant pathogens, such as Hop Latent Viroid, Lettuce Chlorosis Virus, and Powdery Mildew, before plants show obvious signs of infection. Contact PhenoXpress today so they can help you predict, prevent, and eliminate major crop problems before they happen.
Learn more at phenoxpress.com
Additional Resources
- Understanding and Managing Hop Latent Viroid in Cannabis - Zamir Punja, PhD [CannMed 23 Presentation] - • Understanding and Mana...
- Hop Latent Viroid Shares a 19 Nucleotide Sequence with Cannabis sativa COG7 - Kevin McKernan [CannMed 23 Presentation] - • Hop Latent Viroid Shar...
- Hop Latent Viroid in Cannabis - medicinalgenomics.com/hop-lat...
- Review the Podcast! - podcasts.apple.com/us/podcast...
- CannMed Archive - cannmedevents.com/cannmed-vid...
- CannMed Community Board [Facebook Group] - / cannm. .
Пікірлер: 22
great talk
@medicinal.genomics
Жыл бұрын
Glad you enjoyed it. Zamir is the best!
Good Podcast.
@medicinal.genomics
Жыл бұрын
Glad you enjoyed it. Zamir is the best!
Thanks for this. Has any tests been done outdoor also and any difference?
After cutting down an outdoor plant in ground soil, will the virus survive in the roots until next season? Or does the virus die after cutting down the plant? Thank you
Because knowledge is POWA!!!
My question is, how do your plants get it??? Is it from not cleaning tools? Not keeping a good clean grow space? Is it from hops getting near a cannabis plants an spread from their? I'm so curious I just don't understand it's very scary to think all of someone's plants can be infected an they think it's something their doing wrong. You order new seeds from a good supplier an the seeds are also a way to get the problem!!! How can we be sure if we don't have access to getting tests. Like people in states that it's illegal to grow. I guess more research needs to be done. If all this is known now, you would think seed banks are testing but what do we do. How do we fix it long term is what I'm thinking. Say you kill a whole room an start over an it's in the seeds. You wouldn't know!
@505_chill_official
5 күн бұрын
It is spread through the sap of the plant. So thrips, aphids, mites, and scissors could all be vectors of disease, any mechanical damage is a potential vector of disease.
How screwed am I if I am growing hops and cannabis?
Will it live in the soil from an infected plant over winter into the next season?
@505_chill_official
5 күн бұрын
I would assume that if the virus was in the root zone, it would still be in the field the next year to some degree. I believe after that infection would be by chance, bugs in the soil could cut or break the roots opening a vector for disease, similar to fusarium or pythium MO I suppose.
👍👍👍
Why just be clear and show how it's?
@DeltaH-9
5 ай бұрын
...What?
I can't stand listening to people who will suffer no consequences for being wrong.
@DeltaH-9
5 ай бұрын
Can you elaborate and tell us why he's wrong?