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Characterization of 2 ecotypes of H. avenae in France by their development cycles and temperature requirements for hatching






Bulletin OEPP 12(4): 353-359

Characterization of 2 ecotypes of H. avenae in France by their development cycles and temperature requirements for hatching

The southern ecotype of H. avenae (Villasavary population) normally hatches in winter after a diapause of 4 to 5 months. In controlled temperature conditions (5 and 10 deg C) hatching is most intense after exposure of cysts to a constant temperature of 20 deg C for 2 months. The northern ecotype (Nuisement/Coole population) hatches naturally in spring (at 5 to 15 deg C) but hatching can be triggered off by exposure to 10 or 15 deg C following exposure to 5 deg C.

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Accession: 001053320



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