LeafWorks Hop Latent Viroid-Free Seed CertificationDetails Hop Latent Viroid is a highly problematic and pervasive plant pathogen found in cannabis plants that can reduce yields by up to 30%. It is transmitted not just on the external seed coat surface but also from within the seed itself. As a result of disappointing and ruined harvests as well as litigation from sick seeds anyone and everyone that has harvested, sold, or bought infected stock should take extra precautions to ensure seed and plant