Hop Latent Viroid: What Is It?

Hop Latent Viroid: What Is It?
6 min read
15 December 2022

Cannabis plants get sick because of the infectious virus HLV. It was first identified in hop plants many years ago, and it first became apparent in cannabis plants in the 2010s. In a California cannabis cultivation facility, the virus was formally established as the cause of stunting in 2019. (i.e., dudding disease). HLVD is a silent killer since it can remain dormant in cannabis plants for a very long time without showing any signs at all because it is a latent viroid. Fast forward to 2021, and Hop Latent Viroid has become a significant issue for cannabis growers in the US and Canada that was on the verge of a catastrophe.

In Your Grow Facility, How Does HLVD Spread?

Mechanical transmission and infected clone transfer are the two main ways that HLVd spreads. Let's examine each transmission method in more detail.

Mechanical Transfer

The term "mechanical transmission" of Hop Latent Viroid refers to touching someone who has the virus. Cannabis plants can become infected with Hop Latent Viroid when an Hop Latent Viroid-infected object touches them, passing the virus from the object to the plant. Tools and equipment, including pruning tools, cutting equipment, and even pots used for growing and transplanting cannabis plants, are the most prevalent mechanical means by which Hop Latent Viroid is transmitted to cannabis plants. HLVd can spread to an uninfected plant, for instance, if you prune an infected plant and then prune an uninfected plant using the same tools.

Transmission Of Infected Clone

When clones from an infected mother plant are brought into your grow facility, infected clone transmission occurs. Clones from infected mothers often have reduced success rates at establishing roots, but if they do, 10–30% of your plants may die from Hop Latent Viroid.

What Happens If You Have HLVD In Your Cannabis Plants?

HLVd can seriously affect your plants and revenue with no visible early warning symptoms. Common signs of the viroid emerging from latency include:

  • Height and leaf size increase at a slower rate.
  • less flowers in mass
  • looser and smaller buds
  • broken stems
  • irregular branching
  • Deformities in leaves
  • The chlorosis of leaves
  • lower trichome and resin levels
  • decreased production of oil
  • decreased vigour
  • smaller leaves and closer-spaced internodes in the vegetative state

Quality and yields will suffer if your plants are infected with HLVd, which will eventually lead to a decrease in sales. 90% of the participating cultivation sites tested positive for Hop Latent Viroid, according to research done by Dark Heart Laboratory with 100 California cannabis growers between August 2018 and July 2021. Analysts in the cannabis industry predicted at the time that more than 30% of all cannabis plants are impacted by Hop Latent Viroid. If farmers don't take action to stop it before it starts, Hop Latent Viroid might cost the cannabis business billions of dollars each year.

What You Can Do to Avoid HLVd in Your Grow Facility

Sadly, HLVd is a latent virus that can exist for a very long time before any symptoms appear. Additionally, eradicating HLVd from your facility is neither quick nor simple. The greatest approach to safeguard your plants and your profits is through prevention.

To Keep HLVD Out Of Your Grow Facility, Use The 3 S's:

1. Hygiene

You must thoroughly clean all tools, equipment, and other items that can come in contact with plants because this is how Hop Latent Viroid is most frequently spread: by touching an infected object to an uninfected plant. Use a 10% bleach solution (i.e., 1 part bleach to 9 parts water) as opposed to standard sanitation solutions because they won't eradicate Hop Latent Viroid. The use of containers, which might spread HLVD Testing to your cannabis plants, should also be avoided. Use single-use grow bags instead to enhance hygiene and lower transmission. For instance, you may convert to Verne Bioanalytics, LLC's single-use, inexpensive grow bags, which come in a variety of sizes and offer your grow operation additional advantages in addition to cleanliness, such as:

  • Cut back on labor costs
  • Spend less on containers
  • Make it unnecessary to wash and store pots
  • No requirement for equipment or potting machines
  • Simple to assemble and transport
  • Buffered and pH-balanced
  • No need for a pre-soaking
  • Uncompressed means there is no waiting time, no need to spend time hydrating, and Better consistency.
  • Drainage openings
  • For improved airflow and oxygen to the root zone, the material is micro-perforated throughout.

Systems 2.

To ensure you're taking action to stop the introduction or spread of HLVD Testing in your facility, review your processes and SOPs. Make sure, for instance, that you have processes in place to:

  • Isolation of newly brought in clones
  • Plants quarantined for infection
  • Create control zones all across your facility.
  • Make sure to thoroughly clean anything that comes into contact with plants.
  • Keep a supply of seeds, clones, and tissue culture offsite.

3. Detection

Testing is essential to safeguard your plants against the spread of Hop Latent Viroid because it is a latent viroid. You should at the very least conduct thorough screenings frequently, including:

  • Test newly arrived clones in the facility
  • Before you clone, test your mother plants.
  • You regularly test plants in your facility.
  • Visually screen and regularly check plants for Hop Latent Viroid signs.

Important Lessons About HLVD Prevention For Cannabis Growers

The most effective treatment for HLVd is prevention. You don't want this viroid to enter your facility since it has the potential to be devastating. Therefore, adhere to the following three essential preventative practices: properly sanitize, create and implement preventative systems, and screen frequently. Additionally, think about switching to clean living soil grow bags from Verne Bioanalytics, LLC to lower the risk of HLVD Testing transmission and increase the quality and productivity of your plants. To start now, get in touch with us!

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Alex Carter 2
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