| a differential role of volatiles from conspecific and heterospecific competitors in the selection of oviposition sites by the aphidophagous hoverfly sphaerophoria rueppellii. | the selection of oviposition sites by syrphids and other aphidophagous insects is influenced by the presence of con- and heterospecific competitors. chemical cues play a role in this selection process, some of them being volatile semiochemicals. yet, little is known about the identity and specificity of chemical signals that are involved in the searching behavior of these predators. in this study, we used olfactometer bioassays to explore the olfactory responses of gravid females and larvae of t ... | 2015 | 25943861 |
| provisioning floral resources to attract aphidophagous hoverflies (diptera: syrphidae) useful for pest management in central spain. | noncrop plant communities present on the boundaries or within crop fields are essential for the maintenance of functional biodiversity, affecting beneficial insect numbers and ecological fitness. habitat manipulation is an increasingly studied strategy aimed at enhancing natural enemies of agricultural pests by providing feeding and shelter resources. in this study, six plant species selected from preliminary work were tested for their potential attractiveness to four common aphidophagous hoverf ... | 2013 | 24498730 |
| antipredator behaviour of myzus persicae affects transmission efficiency of broad bean wilt virus 1. | biological control has the potential to limit the population growth of arthropod vectors and consequently may be expected to reduce plant virus spread in a crop. however, reduction of vector abundance is not the only effect of biological control. natural enemies might induce antipredator behaviour that affects feeding and dispersal of vectors, and therefore virus spread. here we test the effect of two natural enemies on dispersal of the aphid vector myzus persicae and transmission of broad bean ... | 2011 | 21549771 |