Southernontariogrower
Well-Known Member
HLVd is a rna viroid, that causes major problems in cannabis.....
phylos.bio
To read more about it!

The Scientific Reason for “Dud” Plants — Hop Latent Viroid (HLVd) Discovery in Cannabis
Growers have long speculated the reason for “duds” seen across clonal varieties of cannabis. A first discovery of Hop Latent Viroid (HLVd) in cannabis has finally offered some answers to this costly and confounding problem.
