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Weeds of apple and pear orchards


, : Weeds of apple and pear orchards. Proceedings II Simposio Nacional de Herbologia, Oeiras, 1976, Vol II: 41-44

A survey was made of weeds infesting orchards in Central Portugal in autumn and winter and these are listed separately for Estremadura and Ribatejo on the one hand and Beira Baixa on the other. In Estremadura there was a striking proponderance of Oxalis pes-caprae and Calendula arvensis, while in Beira Baixa the dominant weeds were Chamaemelum fuscatum, Brassica barrelieri and Stellaria media.

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