insect injection and artificial feeding bioassays to test the vector specificity of flavescence dorée phytoplasma.abstract the specificity of vector transmission of flavescence dorée phytoplasma (fdp) was tested by injecting fdp, extracted from laboratory-reared infective euscelidius variegatus, into specimens of 15 other hemipteran insect species collected in european vineyards. concentrations of viable phytoplasma extracts and latency in vectors were monitored by injection of healthy-reared e. variegatus leafhoppers. based on these preliminary results, insects were injected by using phytoplasma extracts t ...200618943154
Survey of leafhopper species in almond orchards infected with almond witches'-broom phytoplasma in Lebanon.Leafhoppers (Hemiptera: Auchenorrhyncha: Cicadellidae) account for more than 80% of all "Auchenorrhynchous" vectors that transmit phytoplasmas. The leafhopper populations in two almond witches'-broom phytoplasma (AlmWB) infected sites: Tanboureet (south of Lebanon) and Bourj El Yahoudieh (north of Lebanon) were surveyed using yellow sticky traps. The survey revealed that the most abundant species was Asymmetrasca decedens, which represented 82.4% of all the leafhoppers sampled. Potential phytopl ...201121864154
the effect of timing of female vibrational reply on male signalling and searching behaviour in the leafhopper aphrodes makarovi.sexual communication in animals often involves duetting characterized by a coordinated reciprocal exchange of acoustic signals. we used playback experiments to study the role of timing of a female reply in the species-specific duet structure in the leafhopper aphrodes makarovi (hemiptera: cicadellidae). in leafhoppers, mate recognition and location is mediated exclusively by species- and sex-specific substrate-borne vibrational signals and a female signal emitted in reply to male advertisement c ...201526488472
molecular diagnostics reveal spiders that exploit prey vibrational signals used in sexual communication.vibrational signalling is a widespread form of animal communication and, in the form of sexual communication, has been generally regarded as inherently short-range and a private communication channel, free from eavesdropping by generalist predators. a combination of fieldwork and laboratory experiments was used to test the hypothesis that predators can intercept and exploit such signals. first, we developed and characterized pcr primers specific for leafhoppers of the genus aphrodes and specific ...201121352388
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