Virus
Corn chlorotic mottle virus (MCMV): What it is, how it occurs, and how to effectively eliminate it.
Corn Chlorotic Mottle Virus (Mcmv)
Maize Chlorotic Mottle Virus (Mcmv)
Pathogen:
Virus
Type:
Risk to the plant:
HIGH
DESCRIPTION
WHO CAUSES IT?
Maize chlorotic mottle virus (MCMV) is a virus that affects corn. It belongs to the genus Orthotospovirus and is mainly transmitted by thrips. Once it infects corn plants, the virus replicates within the host cells and disperses through the vascular system, causing damage to different tissues and organs of the plant.
SYMPTOMS
Corn chlorotic mottle virus (MCMV) causes a range of general symptoms including chlorosis, leaf mottling and deformation, reduced plant growth and yield, and necrotic Taches on leaves and stems. .
- Chlorosis and mottling of the leaves.
- Deformation of the leaves.
- Reduced growth and performance.
- Presence of necrotic Taches on leaves and stems.
TEMPERATURE AND HUMIDITY
25-30°C
60-80%
HOW IS IT SPREAD?
Thrips, infected seeds, direct contact between plants
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
There are no effective treatments against viruses, the treatments are focused on combating the insect or vector carrying the virus (SEE AVAILABLE TREATMENTS AGAINST INSECTS)
Authorized treatments in organic farming
There are no effective treatments against viruses, the treatments are focused on combating the insect or vector carrying the virus (SEE AVAILABLE TREATMENTS AGAINST INSECTS)
Insect allies
PREDATORY MITES
LADYBUGS
LACEWINGS
PARASITIC WASPS
HOVERFLIES OR PARASITIC FLIES
PREDATORY BUGS
There are no natural allies
Mycodiplosis oidii (predatory mosquito)
EFFECTIVE PRODUCTS TO ELIMINATE THIS DISEASE
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- Implement integrated pest management practices to reduce the population of thrips, the main vector of transmission of the virus.
- Use corn varieties resistant or tolerant to the virus when possible.
- Carry out adequate weed elimination to reduce the presence of virus reservoirs.
- Apply preventive phytosanitary treatments when necessary, following the specific recommendations for the control of thrips and viruses in corn.
- Regularly monitor crops to detect the early presence of symptoms and take quick and effective control measures.
Recommendations
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