Results 161 to 170 of about 43,020 (198)
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Occurrence of hop aphid phagostimulants in the honeydew of aphids
Entomologia Experimentalis et Applicata, 1992AbstractSeveral aphid honeydews were incorporated into sucrose solutions and presented to hop aphids, Phorodon humuli (Schrank), as artificial diets in free‐choice bioassays. Small additions of honeydew collected from two species of aphid feeding on hop, Humulus lupulus L., arrested the searching behavior of the hop aphid and appeared to stimulate ...
K. W. Dorschner, S. T. Kenny
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Aphids in jeopardy? Aphid communities on xerothermic habitats
Biologia, 2015The aim of this project was to characterize the aphid groups closely, relating to xerothermic plant assemblages (Festuco-Brometea class) and identifing the aphid species diagnostic for this type of community (aphidocoenosis). The paper represents the first attempt to classify the aphid communities distributed in one type of particular habitat at a ...
Barbara Osiadacz, Roman Hałaj
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1999
Research into biological control of aphids continues. However, because of the high growth rates of aphid populations, it is unlikely that they can be fully controlled in all cases. Correct cultural practices (e.g. avoiding nitrogen overfertilization) may reduce the rate of increase of aphid populations and enhance the effectiveness of biological ...
Rabasse, J.M., van Steenis, M.J.
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Research into biological control of aphids continues. However, because of the high growth rates of aphid populations, it is unlikely that they can be fully controlled in all cases. Correct cultural practices (e.g. avoiding nitrogen overfertilization) may reduce the rate of increase of aphid populations and enhance the effectiveness of biological ...
Rabasse, J.M., van Steenis, M.J.
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Characterisation of aphid proteins as targets for aphid control
1998There have been extensive investigations of allozymes in aphid species, but only a relatively small amount of variation has been found between and, especially, within species. While modern molecular methods have shown that there is a large amount of variation amongst and within aphid species at the DNA level, there has been no concomitant detailed ...
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