The other day we get information from a client of the Canary Islands where we had a very little known disease and devastation in growing marijuana: Hemp Streak Virus.
We were surprised because we did not know the existence of this virus that attacks and destroys crops in no time.
Our friend lost all Maxi to genetics years in only a few days and sent us a few lines here to explain this formidable enemy and we clarified a bit the existence of this rare ¨ hemp streak virus. “
Consider that while the same thing happened to Simon from Serious Seeds AK 47 with their mothers!
Viruses rarely kill hemp. Exist and replicate only in living plants. The virus may, however, seriously reduce yields.
Once acquired are growing, are almost impossible to remove. Viruses invade all parts of plants.Infections of pollen and seed virus transmitted to subsequent generations.
Five viral syndromes are described in the literature of traditional culture: In addition to these natural infections Hartowicz and others (1971) have argued that some 22 common viruses bind to attack the plant for its ability to infect wild hemp industrial or commercial . Only half the viruses could infect, invade and kill hemp crops.
The streak virus hemp (HSV) is frequently cited in growers fiber hemp in Europe. Foliar symptoms begin as chlorosis and leaves become pale green.
The areas of Chlorosis soon become a series of stripes or chevron-striped yellow and it shows a lack of pace in the internal area sap from the leaves. Necrotic brown spots sometimes appear, each spot surrounded by a pale green halo.
The spots appear along the margins and tips of older leaves and are linked together often. Symptoms stripe predominate in the wet weather and stains appear during dry weather.
The leaf margins become wrinkled and leaf tips roll upward petiole (leaf stem and body junction) curling in spirals. Whole plants wilt assume a “wavy” appearance.
The hemp mozaic virus has been described in cultures of fiber hemp in Europe and the drug culture in Pakistan. Symptoms were described as a leaf mosaic gray.
Three other viruses have been cited in the mozaic virus of European hemp-alfalfa, cucumber mozaic virus, and the virus mozaic arabis.
Many insects transmit these viruses as they feed from plant to plant. According Ceapoiu (1958), the worst vectors of Cannabis viruses are aphids marijuana (hemp Phorodon), greenhouse whitefly said earlier today.