blastyblast
Active Member
Welcome to this thread. I am starting this thread because one of my plants, a White Russian Femanised seed started showing signs of illness not too far into 12/12. I started to notice that there were some pale spots one or two leaves. I didn't pay too much attention because the rest of the plant was doing well. Within a week of showing sex (female) she started to show some curling of the leaves. They do not curl up or down. They curled sideways like a sickle!!!
Now, I had never seen anything like this and I thought it was just the plant. However, as I saw more and more leaves becoming discolored, mottled looking I started to do some research to see if I had a problem or a genetic anomaly. '
I first looked through all of the deficiancies and was unable to find a match. and that is when I stumbled on a pic of a plant with TMV--TOBACCO MOSAIC VIRUS. I did a little more research, found some more pics and came to the conclusion that this plant has the virus.
From what I have found through the research is there are very few pics or any sort of documented grows of a marijuana plant with this virus. There are many pics of tobacco, tomatoes, potatoes etc.... with this virus, but only a few sites showed any pics. There is literature about the virus and what it does and I will add some excerpts of that info in this thread.
Tobacco Mosaic virus - The tobacco mosaic virus can attack a wide range of plants, including tomato, pepper, eggplant, tobacco, spinach, petunia, marigold, and our beloved herb marijuana. On marijuana the virus infection causes light and dark green mottled areas on the leaves. The dark green areas tend to be somewhat thicker than the lighter portions of the leaf. The leaf mottling is seen more easily if the affected plant surface is partially shaded. Stunting of young plants is common and often is accompanied by a distortion and fern-like appearance of the leaves. Older leaves curl downward and may be slightly distorted. Certain strains of the virus can cause a mottling, streaking and necrosis of the buds. Infected plants are not killed, but they produce poor quality buds and low yields. Tobacco mosaic, is incited by a virus. The tobacco mosaic virus is very stable and can persist in contaminated soil, in infected plant debris, on or in the seed coat, and in manufactured tobacco products. The virus is transmitted readily from plant to plant by mechanical means. This may simply involve picking up the virus while working with infected plant material, then inoculating healthy plants by rubbing or brushing against them with contaminated tools, clothing, or hands. Aphids are not vectors of the virus, although certain chewing insects may transmit the pathogen.
Solution - Virus diseases cannot be controlled once the plant is infected. Therefore, every effort should be made to prevent introduction of virus diseases into the garden. Sanitation is the primary means of controlling virus diseases. Infected plants should be removed immediately to prevent spread of the pathogens. The use of tobacco products during cultural practices should be avoided to prevent inoculation of plants with the tobacco mosaic virus. Those people using tobacco or working with infected plant material should wash their hands thoroughly in soapy water before handling your plants.
Most of the info on the internet pertaining to this virus was related to tomatoes and tobacco. I found the above on some website.
So I thought I would separate this plant from the rest of my girls (none of which are showing signs of this... lucky so far) and document this grow. I moved this plant into the attic where conditions are slightly different. The temp ranges from 82-50 degrees. I have 4 23W 2700K cfl positioned about 3-4 inches above the plant. I am feeding it the same as my other plants. I am using Botanicare CNS17 Bloom and Ripe. I feed with nutes every other watering, about every 2-3 days. I use RO water ALWAYS. AFTER adding the nutes the ph is between 6-6.5 on a liquid tester and the plants show no signs of ph problems. I turn the plants daily so they get a different light angle. I need to put a fan in there but I haven't had a chance yet. Pics are coming next.
Now, I had never seen anything like this and I thought it was just the plant. However, as I saw more and more leaves becoming discolored, mottled looking I started to do some research to see if I had a problem or a genetic anomaly. '
I first looked through all of the deficiancies and was unable to find a match. and that is when I stumbled on a pic of a plant with TMV--TOBACCO MOSAIC VIRUS. I did a little more research, found some more pics and came to the conclusion that this plant has the virus.
From what I have found through the research is there are very few pics or any sort of documented grows of a marijuana plant with this virus. There are many pics of tobacco, tomatoes, potatoes etc.... with this virus, but only a few sites showed any pics. There is literature about the virus and what it does and I will add some excerpts of that info in this thread.
Tobacco Mosaic virus - The tobacco mosaic virus can attack a wide range of plants, including tomato, pepper, eggplant, tobacco, spinach, petunia, marigold, and our beloved herb marijuana. On marijuana the virus infection causes light and dark green mottled areas on the leaves. The dark green areas tend to be somewhat thicker than the lighter portions of the leaf. The leaf mottling is seen more easily if the affected plant surface is partially shaded. Stunting of young plants is common and often is accompanied by a distortion and fern-like appearance of the leaves. Older leaves curl downward and may be slightly distorted. Certain strains of the virus can cause a mottling, streaking and necrosis of the buds. Infected plants are not killed, but they produce poor quality buds and low yields. Tobacco mosaic, is incited by a virus. The tobacco mosaic virus is very stable and can persist in contaminated soil, in infected plant debris, on or in the seed coat, and in manufactured tobacco products. The virus is transmitted readily from plant to plant by mechanical means. This may simply involve picking up the virus while working with infected plant material, then inoculating healthy plants by rubbing or brushing against them with contaminated tools, clothing, or hands. Aphids are not vectors of the virus, although certain chewing insects may transmit the pathogen.
Solution - Virus diseases cannot be controlled once the plant is infected. Therefore, every effort should be made to prevent introduction of virus diseases into the garden. Sanitation is the primary means of controlling virus diseases. Infected plants should be removed immediately to prevent spread of the pathogens. The use of tobacco products during cultural practices should be avoided to prevent inoculation of plants with the tobacco mosaic virus. Those people using tobacco or working with infected plant material should wash their hands thoroughly in soapy water before handling your plants.
Most of the info on the internet pertaining to this virus was related to tomatoes and tobacco. I found the above on some website.
So I thought I would separate this plant from the rest of my girls (none of which are showing signs of this... lucky so far) and document this grow. I moved this plant into the attic where conditions are slightly different. The temp ranges from 82-50 degrees. I have 4 23W 2700K cfl positioned about 3-4 inches above the plant. I am feeding it the same as my other plants. I am using Botanicare CNS17 Bloom and Ripe. I feed with nutes every other watering, about every 2-3 days. I use RO water ALWAYS. AFTER adding the nutes the ph is between 6-6.5 on a liquid tester and the plants show no signs of ph problems. I turn the plants daily so they get a different light angle. I need to put a fan in there but I haven't had a chance yet. Pics are coming next.
