How do you control cassava mosaic?

How can we control mosaic virus?

How to Control Mosaic Viruses

  1. Remove all infected plants and destroy them. Do NOT put them in the compost pile, as the virus may persist in infected plant matter. …
  2. Monitor the rest of your plants closely, especially those that were located near infected plants.
  3. Disinfect gardening tools after every use.

How do you control cassava disease?

It can be controlled by using varieties with good tolerance, soaking stakes in hot water before planting, sterilizing tools with disinfectant, and intercropping to reduce plant-to-plant dissemination. Viral diseases are usually transmitted through infected planting material.

What causes cassava mosaic disease?

6. Cassava mosaic disease (CMD) is primarily spread through the dissemination of stem cuttings (A) obtained from cassava plants affected by the disease. Secondary spread can occur within and between fields through the activities of the whitefly vector Bemisia tabaci (B).

Is Cassava mosaic virus A DNA virus?

The full-length sequences of 109 components (68 DNA-A and 41 DNA-B) were determined, representing isolates of East African cassava mosaic virus and East African cassava mosaic Zanzibar virus, as well as a novel begomovirus species for which the name East African cassava mosaic Kenya virus is proposed.

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Can plant viruses be cured?

Management of Plant Virus Diseases

Although there are virtually no antiviral compounds available to cure plants with viral diseases, efficient control measures can greatly mitigate or prevent disease from occurring. Virus identification is a mandatory first step in the management of a disease caused by a virus.

What are mosaic symptoms?

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.

How do you remove poison from cassava?

Pounding or crushing cassava leaves and then boiling them in water is an efficient process for removal of cyanogens. Indeed, about 97% of cyanogenic glucosides are removed and cyanohydrin and free cyanide are completely removed (Nambisan 1994).

What causes cassava leaves to yellow?

Disease is spread by infected cuttings and by whiteflies. The leaves are yellow, mottled and distorted. If leaves are yellow all over but are a normal size or there brown leaves that that does not indicate disease. Wild cassava (kisamvu cha mpira in Kiswahili) also hosts the disease.

What causes cassava spoilage?

As with poor harvesting, damaged roots hasten PPD. Poor packaging of cassava storage roots during transport hastens spoilage. … All of this leads to cassava being left out in the open for longer than necessary, which decreases shelf life.

What does mosaic virus do?


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.

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What is the scientific name of cassava mosaic?

/ (məˈzeɪɪk) / noun. a serious viral disease of plants, esp tobacco, maize, and sugar cane, in which the leaves become mottled by discoloration.

What causes cassava brown streak virus?

The rapid geographic expansion of the cassava mosaic disease (CMD) pandemic, caused by cassava mosaic geminiviruses, and outbreaks of cassava brown streak disease (CBSD) from Uganda and other parts of East Africa, caused by potyviruses, have devastated cassava crops in most African countries (Legg et al., 2006).

What is the meaning of cassava mosaic?

Cassava mosaic virus is the common name used to refer to any of eleven different species of plant pathogenic virus in the genus Begomovirus.