Epidemiology of soybean mosaic virus diseases
1984
Cho, E.K. | Choi, S.H. (Office of Rural Development, Suwon (Korea R.). Dept. of Plant Pathology) | Hwang, C.Y. (Office of Rural Development, Suwon (Korea R.). Dept. of Entomology)
Two soybean cultivars Haman and Kwanggyo were used to monitor SMV spread in the field. The Haman producing mosaic symptoms by infection with SMV strain G7 was planted in (2.2)2 at the center of (320.7)2 field and Kwanggyo producing necrosis by infection with SMV-G7 was planted around the Haman one day after inoculation of Haman with SMV-G7. The most severe incidence of the necrotic disease in soybean cultivar Kwanggyon occurred 43 days after planting (Jul 13) whereas aphid population reached peak around 22 days after planting (Jun 22). Total incidence of the necrotic disease was 20.4% in the whole field and 56% in eight small plots around the spreader of SMV
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