Viroid Testing

Avoid plant pathogen issues with a robust program


For a Better and Safer World

Your trusted analytical testing laboratory

DCC Annual License

Quality Control

Compliance with Regulatory Standards

Consumer Confidence


What is viroid testing?

Viroid testing aims to identify and remove infected plants that will decrease yield. By removing mother plants that are infected, the direct benefit will be reaped in the following cycles as each greenhouse’s efficiency is maximized.

Therefore, testing is most effective when performed routinely every 2-3 weeks to ensure the next cycle of clones is all HLVd-free, thus increasing yield.


What are viroids?

Viroids are small, infectious RNA molecules that can affect cannabis plants, causing diseases and affecting the quality of cannabis products.

HLVd (Hop Latent Viroid), is a small, circular RNA molecule. It belongs to the family Avsunviroidae. Unlike viruses, viroids lack a protein coat and are composed solely of RNA. HLVd specifically infects hop plants.

Lettuce Chlorosis Virus (LCV) is a linear, single-stranded positive-sense RNA virus and a member of the Crinivirus family. Cannabis and hemp plants that are infected early will suffer stunted growth but may not show visual signs until a few weeks into flowering.

Cannabis Cryptic Virus (CCV) is a double-stranded RNA virus and a member of the Partitiviridae family.

Common Symptoms

  • Reduced trichome production
  • Tighter node spacing
  • Overall reduction in vigor
  • Significant reduction in yield and quality of flower
  • Looser buds
  • Smaller leaves
  • Shorter growth


What are the technical details?

Instruments: PCR system
Minimum sample size:
Sample types: cannabis and hemp leaves

  • Hop Latent Viroid
  • Cannabis Cryptic Virus
  • Lettuce Chlorosis Virus
Green Nature Services, Agricultural Testing
AGQ Green Nature main logo

Please confirm your age before accessing our website:

Under 21 years old