By: Mary Ellen Ellis
Okra mosaic virus was first seen in okra plants in Africa, but there are now reports of it popping up in U.S. plants. If you grow okra, you are not likely to see it, which is good news since control methods are limited.
There is more than one type of mosaic virus, a viral disease that causes the leaves to develop a mottled, mosaic-like appearance. Strains with no known vectors have infected plants in Africa, but it is yellow vein mosaic virus that has been seen in U.S. crops in recent years. This virus is known to be transmitted by whiteflies.
Okra with mosaic virus of this type first develops a mottled appearance on the leaves that is diffuse. As the plant grows, the leaves start to get interveinal yellow coloring. The okra fruit will develop yellow lines as they grow and become dwarfed and malformed.
The bad news about the mosaic virus appearing in okra in North America is that control is difficult to impossible. Insecticides can be used to control whitefly populations, but once the disease has set in, there are no control measures that will work effectively. Any plants that have been found to be contaminated with the virus must be burned.
If you grow okra, watch out for early signs of the mottling on leaves. If you do see what looks like it could be mosaic virus, contact your nearest university extension office for advice. It is not common to see this disease in the U.S., so confirmation is important. If it does turn out to be mosaic virus, you will need to destroy your plants as soon as possible as the only way to control the disease.
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Posted by BigHaat India on 29-12-2018
Okra or Bhindi or Bhendi (Abelmoschus esculentus L. Moench) is regular vegetable grown in India and it belongs to genus Abelmoschus and its family is Malvaceae. It is also called as ladyfinger.
Like other crops okra crop is also attacked by various pathogens Viruses, bacteria, fungi, mycoplasmas, nematode and insects. Some of most important diseases are Damping off, Fusarium wilt, Powdery mildew, Cercospora leaf spot, Leaf curl virus and Bhindi Yellow Vein Mosaic virus.
Yellow vein mosaic of bhindi or vein clearing of bhindi is the most devastating disease in all the bhindi growing regions of India.
Up to 80% of crop loss is expected if the crop is infected at early stages.
Symptoms of the disease
2. Infected plants exhibit stunted growth and bear very deformed and small, yellow green fruits.
3. Initial infections is distortion of leaf stalks and stem.
4. Begamo virus is the causal organism and transmitted by white fly Bemisia tabaci.
The occurrence and infestation of white flies are more severe in summer months and Yellow vein mosaic viral infections is also high.
Spray combinations for effective control
Senior Agronomist, BigHaat.
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Initially the bhindi plants will be green and due to stress for plants like high temperature, low moisture and high nitrogen in the soil may lead to viral diseases occurrence. Later the spread will be through whiteflies.
Yellow bhindi after green
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Fraser, R.S.S., 1990. Disease resistance mechanisms. In: C.L. Mandahar (Ed.), Plant Viruses, II. pp. 321–345. CRC Press, Inc., Florida.
Jambhale, N.D. & Y.S. Nerkar, 1981. Inheritance of resistance to okra yellow vein mosaic disease in interspecific crosses of Abelmoschus. Theor Appl Genet 60: 313–316.
Nariani, T.K. & M.L. Seth, 1958. Reaction of Abelmoschus and Hibiscus species to yellow vein mosaic virus. Indian Phytopath 11: 137–140.
Nerkar, Y.S. & N.D. Jambhale, 1985. Transfer of resistance to yellow vein mosaic from related species into okra (Abelmoschus esculentus (L.) Moench). Indian J Genet 45(2): 261–270.
Purseglove, J.W., 1987. Tropical Crops Dicotyledons. Longman Singapore Publishers (Ptv) Ltd.
Salehuzzaman, M., 1985. Screening of world germplasm of okra (A. esculentus (L.) Moench) for resistance to Yellow Vein Mosaic Virus (YVMV). Bangladesh J Agric 10(4): 1–8.
Sastry, K.S.M. & S.J. Singh, 1974. Effect of yellow vein mosaic virus infection on growth and yield of okra crop. Indian Phytopath 27: 294–297.
Sharma, B.R. & T.S. Dhillon, 1983. Genetics of resistance to yellow vein mosaic virus in interspecific crosses of okra. Genetica Agraria, 37(3/4): 267–275. Cited from Plant Breed Abstr, 1984, 54(4–5), Abstr No. 4014, p. 390.
Sharma, B.R. & D.P. Sharma, 1984. Breeding for resistance to yellow vein mosaic virus in okra. Indian J Agric Sci 54(10): 917–920.
Singh, M. & M.R. Thakur, 1979. Nature of resistance to yellow vein mosaic virus in Abelmoschus manihot ssp. manihot. Current Sci 48(4): 164–165.
Singh, H.B., B.S. Joshi, P.P. Khanna & P.S. Gupta, 1962. Breeding for field resistance to yellow vein mosaic in bhindi. Indian J Genet 22(2): 137–144.
Thakur, M.R., 1976. Inheritance of resistance to Yellow Vein Mosaic (YVM) in a cross of okra species, Abelmoschus esculentus × A. manihot ssp. manihot. SABRAO J 8(1): 69–73.