Tobacco Mosaic Virus (TMV) in cannabis

Leaf Colour:
Yellow Leaves - New Growth
Yellow Leaves - Lower, older leaves
Yellowing Between Veins
Veins of Leaves Stay Green
Mottling / Mosaic Pattern

Leaf Symptoms:
Upper Leaves / Newer Growth Affected
Lower Leaves / Older Growth Affected
Small Inner Leaves Affected
All Leaves Seem Affected
Thick Growth Tips
Yellowing Between Veins
Veins of Leaves Stay Green
Spots
Mottling / Mosaic
Slow Growth
Twisted Growth
Abnormal Growth
Leaves Curl Under
Leaves Curl Upwards

Plant Symptoms:
Slow Growth
Twisted Growth
Leaves Curl Under
Leaves Curl Upwards
Spots on Leaves?:

Tobacco Mosaic Virus (TMV) is a virus that is commonly found in tobacco plants which causes splotchy or twisted leaves, strange mottling symptoms (a "mosaic"), slowed growth, and reduced yields. Mosaic virus has spread to several other species of plants, and although we don't know for certain, there is evidence from many growers that cannabis plants can catch mosaic virus, too. Although mosaic virus can't hurt you (the grower), it can prevent plants from growing as fast or yielding as well as they could have.
Can Cannabis Plants Catch Mosaic Virus?

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