| visual acuity trade-offs and microhabitat-driven adaptation of searching behaviour in psyllids (hemiptera: psylloidea: aphalaridae). | insects have evolved morphological and physiological adaptations in response to selection pressures inherent to their ecology. consequently, visual performance and acuity often significantly vary between different insect species. whilst psychophysics has allowed for the accurate determination of visual acuity for some lepidoptera and hymenoptera, very little is known about other insect taxa that cannot be trained to positively respond to a given stimulus. in this study, we demonstrate that prior ... | 2015 | 25827835 |
| glycaspis brimblecombei (hemiptera: psyllidae) attack patterns on different eucalyptus genotypes. | the red gum lerp psyllid, glycaspis brimblecombei moore (hemiptera: psyllidae), an eucalypt insect pest from australia, was reported in brazil in 2003. this study evaluated damage patterns of this pest on eucalyptus camaldulensis dehn (myrtaceae) and its hybrids e. urophylla x e. camaldulensis (urocam) and e. urophylla x e. grandis (urograndis). in addition, parasitism rates of psyllaephagus bliteus riek (hymenoptera: encyrtidae) on g. brimblecombei collected on different eucalypt genotypes are ... | 2017 | 29085744 |
| modeling environmental influences in the psyllaephagus bliteus (hymenoptera: encyrtidae)-glycaspis brimblecombei (hemiptera: aphalaridae) parasitoid-host system. | glycaspis brimblecombei moore (hemiptera: aphalaridae) is an invasive psyllid introduced into the mediterranean area, where it affects several species of eucalyptus. psyllaephagus bliteus riek (hymenoptera: encyrtidae) is a specialized parasitoid of this psyllid that was accidentally introduced into italy in 2011. we developed a model of this host-parasitoid system that accounts for the influence of environmental conditions on the g. brimblecombei population dynamics and p. bliteus parasitism ra ... | 2017 | 28073975 |
| frequency of secondary symbiont infection in an invasive psyllid relates to parasitism pressure on a geographic scale in california. | two endosymbionts, an obligate primary symbiont and a facultative secondary symbiont, are harbored within the invasive red gum (eucalyptus) lerp psyllid, glycaspis brimblecombei, in california. an extensive survey of diversity and frequency of g. brimblecombei's secondary symbiont in multiple populations throughout the state of california was conducted using pcr detection, restriction enzymes, cloning, and sequencing. a total of 380 g. brimblecombei individuals in 19 populations were screened fo ... | 2007 | 17933921 |
| [effects of landscape structure and eucalyptus genotype on the abundance and biological control of glycaspis brimblecombei moore (hemiptera: psyllidae)]. | glycaspis brimblecombei moore is an australian native pest of eucalyptus detected in brazil in 2003. since then, it has spread fast and colonized plantations in several states of the country. this study aimed to investigate the influence of cerrado remnants on the abundance and biological control of g. brimblecombei. we placed yellow sticky card traps to capture insects in four plantations of hybrid clones of eucalyptus urophylla x eucalyptus grandis ('urograndis') and four plantations of e. uro ... | 2010 | 20305903 |