Tobacco Mosaic virus, Hemp Mosaic Virus,

*a copy and past from another forum.

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.


* The link I almost wish I never found---

http://forum.grasscity.com/cannabis-breeding/622794-tobacco-mosaic-virus-tmv.html

Point and laugh as you may but that WHOLE thread it has me pretty convinced mosaic is very real and does effect cannabis.

So I have some kush plants that look like post 3 last two pics. Also at the curl it is bleached slightly and the leaf is kinda of like separating from the vein at the end. Ill post some pics later. I have P.E that looks fine and some purps that looks good also. What I see in my area it is very minor. But is still a thought in my mind of m.v. Im still indecisive on this. I do have a few lil buggers in my room which I feel could either be spreading the virus or causing virus like symptoms. I just overloaded it with lady bugs.

-- what I have read and has been imprinted on my brain

You could have it and not even know until the plants experience a good bit of stress. It is possible to have it and not know due to the fact you still get yield just not as must,not as potent, and not as fast as you should. Its possible healthy plants can show no signs until the first week or more into flower when they are under serious stress. I read certain strains will show symptoms worse than others. Very strong strains can show no symptoms at all. (Id assume the only bad thing with those is infecting weaker strains in the room) It can live on dead plant matter or any surface dead or alive for a very long time. It can be transferred to the seed's shell but not genetically in the seed. If not properly cleaned or disinfected the seed will grow into a m.v plant. There are more than one type of mosaic virus. There is no cure. Aspirin at 325mg a gal can help boost plants immune system to suppress symptoms. (I only read this and never tried it. I am uncertain.) I also read somewhere aspirin could cause hermie in the wrong dose.

--that sums it up

I have seen some of these symptoms before and never thought much of it but after reading this thread the hamster starts the wheel...
 
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