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18 recherche sur le mot-clé
'Coccinella septempunctata' 
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article/chapitre/communication
C. Sengonca ; B. Liu | 1994
thèse/mémoire
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B. Emrich | 1991
thèse/mémoire
R. Dabire ; ENSAM Ecole Nationale Superieure Agronomique de Montpellier, Montpellier (FRA) | Montpellier [FRA] : ENSAM Ecole Nationale Supérieure Agronomique de Montpellier | 1991Langue(s) du résumé : FRE;ENG
article/chapitre/communication
A. Ferran ; G. Iperti ; L. Lapchin ; J. Rabasse | 1991
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W. Vanderwerf ; E. Evans ; J. Powell | 2000
article/chapitre/communication
G. Iperti ; L. Lapchin ; A. Ferran ; J. Rabasse ; J. Lyon | 1988
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The effect of continuous, intensive grazing by cattle on aphid populations was examined in the first growth cycle of 'Alfagraze' and 'Apollo' alfalfa which are tolerant and not tolerant to grazing, respectively, Populations were almost entirely [...]
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The volatile components from intact tea shoots (ITS), obtained by air entrainment, were identified by their mass spectra and retention times and confirmed by comparison with standard samples. They are E-2-hexenal, ocimene, Z-3-hexenyl acetate, Z[...]
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Determining the phenological and diel concurrence of potentially overlapping predator guilds in a given system provides a gauge of the potential prevalence and importance of synergistic prey suppression. The phenology of pea, aphids (Acyrthosiph[...]
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H. Roy ; J. Pell ; S. Clark ; P. Alderson | 1998The foraging behavior of starved and nonstarved second and fourth instar Coccinella septempunctata larvae on dead Acyrthosiphon pisum aphids, either infected with the entomopathogenic fungus Erynia neoaphidis (sporulating) or uninfected, was exa[...]
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E. Evans ; S. England | 1996The population dynamics of insect pests in agroecosystems may often be linked to those of other phytophagous species through the foraging activities of natural enemies; these indirect interactions provide both opportunities and challenges for bi[...]
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D. Richards ; E. Evans | 1998Aphidophagous lady beetles feed on a variety of pre! in addition to preferred aphids. These alternative feuds ma!: serve only to maintain the predator but do not permit immature growth or adult reproduction. We tested whether larvae of the alfal[...]
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P. Wohlers | 1980
