What does mosaic disease look like?

How do I know if my plant has mosaic virus?

Mosaic symptoms are variable but commonly include irregular leaf mottling (light and dark green or yellow patches or streaks). Leaves are commonly stunted, curled, or puckered; veins may be lighter than normal or banded with dark green or yellow.

What are the signs and symptoms of tobacco mosaic virus?

Symptoms associated with TMV infections:

  • stunting.
  • mosaic pattern of light and dark green (or yellow and green) on the leaves.
  • malformation of leaves or growing points.
  • yellow streaking of leaves (especially monocots)
  • yellow spotting on leaves.
  • distinct yellowing only of veins.

How quickly does mosaic virus spread?

Comments on the Disease

Cucumber mosaic virus is spread from plant-to-plant by many species of aphids. Aphids only retain the ability to transmit these viruses for very short periods of time (minutes to a few hours). Thus, spread is often very rapid and local.

Can mosaic virus live in soil?

Unlike TMV (tobacco mosaic virus), CMV is not seedborne in tomato and does not persist in plant debris in the soil or on workers’ hands or clothing. The occurrence of this virus is erratic and unpredictable; consequently, control of this disease can be difficult.

IT IS INTERESTING:  Frequent question: How Big Should quilt squares be?

What determine the severity of symptoms of mosaic?

Disease severity generally depends upon the host genotype, and is usually more severe on susceptible than on resistant genotypes (Hahn et al., 1980; Jennings, 1994; Thresh et al., 1994).

Is tomato mosaic a fungal disease?

Treating mosaic virus is difficult and there are no chemicl controls like there are for fungal diseases. Tomato mosaic virus has been found to survive for up to 50 years in desiccated plant detritus!

What is Tomato Mosaic Virus?

ORF Function
18kDa/Coat protein Packaging of viral RNA

How do you treat tomato leaf curl virus?

There is no treatment for virus-infected plants. Removal and destruction of plants is recommended. Since weeds often act as hosts to the viruses, controlling weeds around the garden can reduce virus transmission by insects.

Can plants recover from virus?

Virus-induced diseases cause severe damages to cultivated plants resulting in crop losses. Interestingly, in some cases, the diseased plants are able to re-gain health, further grow and develop normally.

What does mosaic virus do?

THE TOBACCO MOSAIC VIRUS

Tobacco mosaic virus causes a mottled browning of tobacco leaves, and accordingly is of major economic importance. It also infects other crops, most notably tomatoes. The virus is spread mechanically from infected plants to scratched or damaged leaves of normal plants.