Loss estimates on soybean crops due to diseases and nematodes
Loss estimates on soybean crops due to diseases and nematodes are presented for the top ten soybean-producing countries in 1994 (USA, Brazil, China, Argentina, India, Canada, Paraguay, Indonesia, Italy, Bolivia). Total yield losses caused by Heterodera glycines (EPPO A1 quarantine pest) are greater than those caused by any other disease. Next in order of importance came Diaporthe phaseolorum var. caulivora, Septoria glycines and Macrophomina phaseolicola. For these top ten countries, the total yield loss due to diseases and nematodes is estimated to 14.99 million metric tons, valued at 3.31 billion USD. This paper also gives information on the occurrence of various diseases which are new records for the EPPO Secretariat. Phialophora gregata (EPPO A1 quarantine pest) appears as present in Argentina. This fungus is also reported with a restricted distribution in Brazil, in the States of Rio Grande do Sul and Santa Catarina (see also EPPO RS 97/046). Phytophthora megasperma f.sp. glycinea (EPPO A2 quarantine pest) occurs in Brazil and in Indonesia (new records according to the EPPO Secretariat).
Wrather, J.A.; Anderson, T.R.; Arsyad, D.M.; Gai, J.; Ploper, L.D.; Porta-Puglia, A.; Ram, H.H.; Yorinori, J.T. (1997) Soybean disease loss estimates for the top 10 soybean producing countries in 1994.
Plant Disease, 81(1), 107-110.