Soybean Mosaic Virus

Disease

Soybean Mosaic Virus

SMV

virus

In a Nutshell

    Light- and dark-green mosaic pattern develop on leavesWrinkled leaves curl downwardDefoliation, plant stunting, and reduced pod number and size

Hosts: %1$s

· Soybean

Symptoms

Plants can be infected at any time. Resistant varieties show no apparent symptoms. In susceptible plants, the early stage of the infection is characterized by the development of a light and dark-green mosaic pattern in young, rapidly growing leaves. Later they become severely mottled, wrinkled along the veins and curl downward. Defoliation, plant stunting, and reduced pod number and size ensue. Symptoms are most severe during cool weather and may not be detectable at temperatures above 32°C.

Trigger

The virus has a large range of hosts, which include peas, sneap beans, and many weeds. The pathogen is transmitted by aphids, infected seeds and can survive in nearby hosts. Infection in the early growth stages can cause yield loss, affect seed quality, and reduce seed germination and nodulation. Infections that occur later in the season are less severe. Well-fertilized fields with high yield potential and high aphid density favor virus transmission.

Biological Control

Sorry, we don't know of any alternative treatment against SMV . Please get in touch with us in case you know of something that might help to fight this disease. Looking forward hearing from you.

Chemical Control

Always consider an integrated approach with preventive measures together with biological treatment if available. Chemical treatment of viral diseases is not possible. The use of insecticides to control aphid population, and thereby the spreading of the virus, is not effective.

Preventive Measures

    Be sure to use certified, virus-free seedsUse resistant or tolerant varietiesIf possible, choose early planting programsDo not rotate soybean with other hosts of the virusControl weeds in an around the fieldsDo not over-fertilize your fields during early stages of plant growth




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