Casquero, Pedro A., University of León, Dept. Agricultural Sciences and Engineering. Avda. Portugal 41, 24071 León, Spain

• Spanish Journal of Agricultural Research Vol. 15 No. 2 (2017) - Plant protection
  Within-field distribution of the damson-hop aphid Phorodon humuli (Schrank) (Hemiptera: Aphididae) and natural enemies on hops in Spain
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