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A. Givovich ; J. Sandstrom ; H. Niemeyer ; J. Pettersson | 1994Phloem sap of wheat seedlings differing in whole leaf hydroxamic acid (Hx) concentrations was collected by cutting stylets of feeding aphids. DIMBOA-glucoside was the only Hx-related product found. Concentration of DIMBOA-glucoside in phloem sap[...]article/chapitre/communication
M. Hullé ; S. Coquio ; V. Laperche | 19941. Flight phenologies of the migrant cereal aphid Rhopalosiphum padi, as indicated by suction trap catches throughout France between 1978 and 1988, were compared using multivariate methods. 2. Cluster analysis identified seven main patterns of f[...]article/chapitre/communication