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Aerial migrations of the rose-grain aphid, Metopolophium dirhodum(Wlk.), over Europe in 1979 |
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| Authors: | A. M. DEWAR I. WOIWOD E. CHOPPIN DE JANVRY |
| Affiliation: | Rothamsted Experimental Station, Harpenden, Hertfordshire;Association de Co-ordination Technique Agricole, Maison Nationale des Eleveurs, 149 rue de Bercy, 75579 Paris Cedex 12 |
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