What are the symptoms of mosaic disease in okra?

Chlorotic spots, chlorotic leaf blotches, distortion of leaves, chlorotic streaking, distortion of fruits, and severe yield losses as much as 63% characterize the disease.

What are the symptoms of 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.

Does mosaic virus stay 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.

What causes yellow vein mosaic of okra?

Okra yellow vein mosaic disease (OYVMD) is the most destructive disease of okra. The causal agent, [(i.e., Okra yellow vein mosaic virus (OYVMV)] of this disease belongs to the family Geminiviridae and genus Begomovirus. OYVMV is a monopartite with additional ssDNA molecule.

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How fast 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.

How do you get rid of mosaic virus?

There is NO CURE for the Mosaic Virus. Once it infects a plant, there is no saving it. Your best course of action is to remove the entire plant completely, and destroy it. Be sure to clean and disinfect any garden tools used during the clean-out.

Which disease is caused for mosaic disease?

This disease is caused by a complex consisting of the monopartite begomovirus Bhendi yellow vein mosaic virus (BYVMV, family: Geminiviridae) and a small satellite DNA beta component. BYVMV can systemically infect bhendi upon agroinoculation but produces only mild leaf curling in this host.

How do cucumbers deal with mosaic virus?

Management

  1. Purchase virus-free plants.
  2. Maintain strict aphid control.
  3. Remove all weeds since these may harbor both CMV and aphids.
  4. Immediately set aside plants with the above symptoms and obtain a diagnosis.
  5. Discard virus infected plants.
  6. Disinfest tools used for vegetative propagation frequently.

Is mosaic virus harmful to humans?

“These viruses are specific to plants and do not harm humans. The presence of mosaic won’t cause fruits to rot prematurely but severely distorted fruit will have a different texture, so use your own judgement.”

Can you eat cucumbers with mosaic virus?

Yes, you can eat squash and melons that are infected with mosaic virus. These viruses are not harmful to humans and do not cause the fruit to rot. Often the discoloration is only skin deep.

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What are the most common symptoms of yellow vein mosaic disease?

Symptoms

  • Yellowing of the entire network of veins in the leaf blade is the characteristic symptom.
  • In severe infections the younger leaves turn yellow, become reduced in size and the plant is highly stunted.
  • The veins of the leaves will be cleared by the virus and intervenal area becomes completely yellow or white.

What is plant vein clearing?

Vein clearing is the loss of normal green coloration of plant veins; usually they turn yellow first.

Which of the following disease is caused by a virus?

Viral Infections

Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, Ebola, and COVID-19. Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves.

What is Mosaic Virus plants?

A mosaic virus is any virus that causes infected plant foliage to have a mottled appearance. Such viruses come from a variety of unrelated lineages and consequently there is no taxon that unites all mosaic viruses.

Is mosaic virus contagious?

Tomato mosaic virus is a serious and extremely contagious disease. It is also hard to identify, with symptoms varying wildly depending upon the variety and age of the infected plant, the strain of the virus, and environmental conditions.

What is the mode of transmission of okra disease?

Bhendi yellow vein mosaic virus (BYVMV) or okra yellow vein mosaic (OYVMV) is a viral disease caused by monopartite Begomovirus affecting okra plants. It was first found in 1924 in Bombay, India, and Sri Lanka. It is the major limitation of the production of okra. This disease is transmitted by whitefly.

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