Mosaic symptoms may be masked or latent, especially at temperatures above 27 °C (81 °F), and are sometimes confused with nutrient deficiency or herbicide injury. The causal viruses are spread by aphids and other insects, mites, fungi, nematodes, and contact; pollen and seeds can carry the infection as well.
What causes mosaic virus in tomatoes?
Leftover plant debris is the most common contagion. Tomato mosaic virus of tomatoes can exist in the soil or plant debris for up to two years, and can be spread just by touch – a gardener who touches or even brushes up against an infected plant can carry the infection for the rest of the day.
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.
What causes mosaic virus in cucumbers?
Where does cucumber mosaic come from? Cucumber mosaic is caused by Cucumber mosaic virus (CMV) which can overwinter in susceptible biennial or perennial weeds, as well as in perennial agricultural crops (e.g., alfalfa) and perennial herbaceous and woody ornamentals.
What causes lettuce mosaic virus?
Lettuce mosaic virus is just that– a virus that is seed borne in all types of lettuce except endive. It is the result of infected seeds, although weed hosts are carriers, and the disease can be vectored by aphids, which spread the virus throughout the crop and into nearby flora.
Does mosaic virus stay in the 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.
How do you fight mosaic virus?
How to Control Mosaic Viruses
- Remove all infected plants and destroy them. Do NOT put them in the compost pile, as the virus may persist in infected plant matter. …
- Monitor the rest of your plants closely, especially those that were located near infected plants.
- Disinfect gardening tools after every use.
Can you eat a watermelon 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. In cases where fruit are severely distorted, the texture of the fruit may be affected and may not be desirable for eating.
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.”
What is Mosaic Leaf?
1 : the arrangement of foliage in most plants (as in the common ivy) in such a pattern as to expose the maximum number of leaves to the direct rays of the sun with little loss of intervening space.
What plants does mosaic virus infect?
Mosaic viruses affect a wide range of edible crops – alfalfa, apples, beans, celery, corn, cucumbers, figs, peppers, spinach, tobacco and tomatoes are some of the more common ones. They can also infect ornamental plants like abultilon, delphinium, gladiola, marigold, petunia and one of the most notable, roses.
How do you get rid of cucumber mosaic virus?
There are no chemicals that cure a CMV-infected plant, nor any that protect plants from becoming infected.
- Purchase virus-free plants.
- Maintain strict aphid control.
- Remove all weeds since these may harbor both CMV and aphids.
- Immediately set aside plants with the above symptoms and obtain a diagnosis.
What is CMV plant?
Cucumber mosaic virus (CMV) is an aphid-borne virus that infects a wide range of plant species including vegetable crops and weeds.
How can the lettuce mosaic virus be prevented?
- Plant lettuce seed that has been tested for the virus and that contains no infected seed per 30,000 seed tested. …
- Remove potential virus reservoirs (see lists below) by practicing good weed control within and outside lettuce fields, and by plowing down harvested lettuce fields in a timely manner.
What is the scientific name of mosaic virus?
alternanthera mosaic virus (AltMV) (AltMV)
What virus is on lettuce?
The viruses infecting lettuce or endive include lettuce mosaic virus (LMV)~ cucumber mosaic virus (CMV), turnip mosaic virus (TuMV), broadbean wilt virus (BBWV), Bidens mottle virus (BiMV), and beet western yellows virus (BWYV).