Dr. Claire Stürzer-Gilbert

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Investigations which were made in 1977–1979 in the alp mountains around Seefeld on the Adelgidae sucking on silver fir showed that there wasDreyfusia nordmannianae only. Time of egg laying was from early May till early June, and of emergence of the neosistentes from middle May till late July. The number of neosistentes was much greater than those of(More)
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