Cucumber mosaic virus (CMV) is a widespread plant virus infecting important vegetables, plantation and flower crops. Currently, CMV is detected by enzyme-linked immunosorbent assays (ELISA) and reverse transcription-polymerase chain reaction (RT-PCR) assays.
How is cucumber mosaic virus diagnosed?
Symptoms associated with CMV 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.
- ring-spots or line patterns on leaves or fruit.
- flower color breaking.
How do you detect mosaic virus?
How do I know if my plant has mosaic virus?
- Yellow, white or green stripes/ streaks/ spots on foliage.
- Wrinkled, curled, or small leaves.
- Pronounced yellowing only of veins.
- Stunted growth and reduced yields.
- Infected fruit appears mottled and develops raised “warty” areas.
- dark green blisters.
- stems that dry out rapidly.
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 does cucumber mosaic virus look like?
Typical symptoms include stunting of entire plants, mosaic or mottling (i.e., blotchy white, yellow, and light green areas) and ring spots (i.e., ring-like areas of discolored tissue) on leaves and fruits, and a variety of growth distortions such as cupping, puckering and strapping (i.e., elongation and thinning) of
Does cucumber mosaic virus stay in soil?
The cucumber mosaic virus overwinters in perennial weeds and may be transmitted to healthy plants by aphid vectors (although tomatoes are not the preferred host of aphids) or by mechanical means. The cucumber mosaic virus cannot withstand drying or persist in the soil.
How is cucumber mosaic transmitted?
Cucumber mosaic virus is transmitted by the mechanical inoculation of plant sap and aphids are the most important means of natural transmission (Edwardson and Christie, 1986). More than 80 aphid species have been described as CMV vectors and transmit the virus in a non-persistent, stylet-borne manner.
How long does mosaic virus stay in soil?
These investigations have shown that the virus may survive in soils for periods of 1 year or more, but that it is subject to relatively rapid inactivation under certain natural conditions.
Can plants recover from mosaic virus?
Like all viruses, mosaics are incurable– although sometimes they simply create interestingly patterned leaves without significantly reducing a plant’s vigor. Damage: Leaves are mottled or streaked. Other possible symptoms include distorted or stunted growth, reduced yield, and poor fruit quality.
Is cucumber 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.”
How do you stop mosaic virus?
Mosaic virus is spread by insects, so the best way to prevent the virus from infecting your plants is to control the insect population. This can be done by using Insecticidal soap or neem oil. You can also remove infected leaves and destroy them.
Can you fix mosaic virus?
Once plants are infected, there is no cure for mosaic viruses. Because of this, prevention is key! However, if plants in your garden do show symptoms of having mosaic viruses, here’s how to minimize the damage: Remove all infected plants and destroy them.
Can mosaic virus live in soil?
The virus often appears following cool conditions that favor aphid flights. 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.
What causes mosaic virus in cucumbers?
What causes Cucumber Mosaic disease is the transfer of the virus from one infected plant to another through the bite of an aphid. The infection is acquired by the aphid in just one minute after ingestion and is gone within hours.
What cucumbers are resistant to mosaic virus?
CMV – Cucumber Mosaic Virus Resistant Cucumbers
- Beit Alpha Cucumbers. CU76-20. $3.50.
- Boston Pickling Improved Cucumbers. CU61-20. $2.75.
- Brickyard Cucumbers. CU129-20. $3.50.
- Bush Pickle Cucumbers. CU5-20.
- Carolina Pickling Cucumbers. CU43-20.
- Cool Breeze Cucumbers. CU7-20.
- Cross Country Cucumbers. CU36-10.
- Cucamelon Cucumbers. CU130-20.
How do you prevent cucumber virus?
Control weeds within and around the field. Focus control efforts on perennial weeds that may allow the virus to carry over from one season to the next. Keep aphid and cucumber beetle populations low. If disease appears in a few plants, remove and bury these plants to prevent further spread of the disease.
What are the spots all over my cucumber leaves?
Angular leaf spot (Psuedomonas syringae pv.
Angular leaf spot can affect all cucurbits, but cucumbers are most commonly affected. It is caused by the bacterium Pseudomonas syringae pv. lachrymans. This disease is usually among the first to show up because it is seed-borne.
Is cucumber mosaic virus seed-borne?
Analysis of individual whole seeds showed that seed-borne infection of CMV in pepper ranged from 95 to 100%. Further seed-growth tests were performed in Petri dishes and CMV was detected in both seed coat and embryo. Seed coat infection of CMV ranged from 53 to 83% while that of the embryo ranged from 10 to 46%.
How do I know if my cucumbers have a virus?
Symptoms
- Yellowish patches or green and yellow mottling on leaves.
- Leaves curl downwards and are distorted and reduced in size.
- Plants are stunted due to a shortening of the internodes (lengths of stem between leaves)
- Reduction in yields and distorted fruit.
- In flowers white streaks known as ‘breaks’ appear.
What is the scientific name of cucumber mosaic virus?
Cucumber mosaic virus (cucumber mosaic cucumovirus) Click on organism name to get more information.
Which crop is generally affected by mosaic disease?
In mungbean, yellow mosaic disease (YMD) caused by yellow mosaic viruses (YMVs) is of key importance especially in South and Southeast Asia. Besides mungbean, YMD also affect various leguminous crops including blackgram (Vigna mungo), mothbean (Vigna aconitifolia), Lima bean (P.