What causes cassava mosaic?

Which virus causes cassava mosaic?

In Manihot esculenta (cassava), a highly valuable African food crop, the virus causes severe mosaic.

African cassava mosaic virus
Virus classification
Order: Geplafuvirales
Family: Geminiviridae
Genus: Begomovirus

What disease affect cassava?

The two major diseases are the Uganda variant of the East African cassava mosaic virus (EACMV-Ug) and cassava brown streak virus (CBSV). These are just the latest in a long line of disease strains affecting cassava (1983, 1993, 1997, 2004).

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.

Which crop is generally affected by mosaic disease?

Mosaic, plant disease caused by various strains of several hundred viruses. A number of economically important crops are susceptible to mosaic infections, including tobacco, cassava, beet, cucumber, and alfalfa.

What does cassava do to the body?

Cassava is a calorie-rich vegetable that contains plenty of carbohydrates and key vitamins and minerals. Cassava is a good source of vitamin C, thiamine, riboflavin, and niacin. The leaves, which are also edible if a person cooks them or dries them in the sun, can contain up to 25% protein.

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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 is the most important field pest of cassava?

Cassava mites are an important insect pest in all producing regions. The cassava green mite, Mononychellus tanajoa, causes the most damage to cassava in Latin America and sub-Saharan Africa, especially in lowland areas with a prolonged dry season.

How many types of cassava are there?

A current study by IITA revealed that about 4000 local varieties are in 17 major cassava-growing countries in Africa. The research programmes on cassava improvement of the countries surveyed released a total of 206 improved cassava varieties between 1970 and 1998 [7].

How cassava can be propagated?

Cassava is propagated by cuttings, by planting pieces of stem. The roots of cassava are not used for making a new plantation, and thus all the harvest can be eaten or sold. To make cuttings, choose stems 2 to 4 centimetres thick, from the strongest plants which are not diseased and which have already produced tubers.

How can we prevent cucumber mosaic virus?


  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.