First report of Heterodera glycines in Italy
In summer 2000, Heterodera glycines (EPPO A1 quarantine pest) was found in 3 soybean (Glycine max) fields, near Pavia, Lombardia, Italy. Affected fields showed circular to oval patches of stunted and yellow soybean plants. Soybean roots were poorly developed, without or with few nitrogen nodules, and the presence of adult nematode females and cysts was observed. Identification of H. glycines was based on cyst and juvenile morphology and morphometric measurements. Symptoms had been noticed by farmers since 1998, but were attributed to mineral deficiencies. H. glycines population appears well established, as all nematode stages were observed in high abundance. Cyst and egg densities were estimated. They varied from 32 to 79 cysts/100 cm3 and 7900 to 19200 eggs/100 cm3, respectively. This is the first report of H. glycines in Italy. The situation of H. glycines in Italy can be described as follows: Present: found only in 3 fields near Pavia, Lombardia.
Sources
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Manachini, B. (2000) First report of Heterodera glycines Ichinohe on soybean in Italy.
Bolletino di Zoologia Agraria e di Bachicoltura, Serie II, 32(3), 261-267.
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