About the Hemp Mosaic Virus

The Hemp Mosaic Virus (HMV) is an intracellular parasite that infects plants by attaching itself to its RNA. The Hemp Mosaic Virus is part of the genus Tobamovirus, the most common of which is Tobacco Mosaic Virus (TMV). These viral RNA polymerases lack the proof-reading ability of DNA which makes vaccines extremely difficult to develop. Mutations occur rapidly and this virus can reduce crop yields by 25% or more. In some cases entire crops can be lost. RNA Pro is a product that has been shown to effectively treat infected plants and allow gardeners to capture their crop’s full potential.

While it is true there is no vaccine to cure the Hemp Mosaic Virus, there is a particularly effective treatment. RNA Pro works by increasing the plant’s production of the protein coating that is meant to protect it from such viruses. By using RNA Pro the virus can not bind the plant’s RNA and thus the symptoms don’t proliferate. They may never manifest if used early enough as a preventative treatment. RNA Pro should be used every week until symptoms subside, but may only be necessary to apply every other week for maintenance once the infection is under control.  At RNA Pro we recommend that after harvesting, steps be taken to avoid re-contamination in the next growing cycle. These steps include sterilizing the entire room, equipment, and supplies with Physan 20. Outdoor farmers will have a more difficult time eradicating the infection but there has been success through incineration of all plant material.


Identifying the Hemp Mosaic Virus

IndentyfyingThe Hemp Mosaic Virus is highly contagious and has become pervasive problem for many growers that makes it extremely difficult to achieve normal yields. The physical characteristics are usually yellow or grayish blemishes that occur as spots, streaks, or a mosaic pattern. The leaves of the plant may take on a blistered appearance and can become misshapen as the mutations occur. The pistols of infected plants often show signs of contamination through darkening of the tips and they stop extending as far from the flower.  The effect of receding pistols usually becomes apparent by the end of the 2nd week of the plant’s flowering cycle. The plant will usually exhibit slower than normal growth and is commonly referred to as “stunted”.  Plants with particularly bad infections can exhibit weakened cell walls at maturity that make stems brittle and susceptible to damage. It is recommended that plants infected with the virus begin treatments with RNA Pro as soon as possible to achieve the best results.

HMV Characteristics:

  • yellow or grey blemishes
  • blemishes in mosaic or streak pattern
  • leaves appear blistered
  • receding pistols
  • stunted growth
  • reduced vigor
  • twisting or mutated cellular growth

Before Concluding HMV Infection Rule Out:

  • pH issues
  • nutrient deficiencies
  • pests such as mites, thrips, root aphids, etc.