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Abundance and Consumption Rate of Glassy-Winged Sharpshooter (Hemiptera: Cicadellidae) on Peaches and Plums
Homalodisca vitripennis (Germar), the glassy-winged sharpshooter, is a primary vector of phony peach and plum leaf scald diseases caused by Xylella fastidiosa Wells et al. A survey of H. vitripenni...
Application of competitive enzyme-linked immunosorbent assay for the quantification of imidacloprid titers in xylem fluid extracted from grapevines
A competitive enzyme-linked immunosorbent assay (ELISA) technique was evaluated for quantifying titers of imidacloprid in xylem fluid extracted from Vitis vinifera L. grapevines that were treated w...
Assessing adhesion, biofilm formation and motility of Acidovorax citrulli using microfluidic flow chambers
Acidovorax citrulli is the causal agent of bacterial fruit blotch of cucurbits. We have shown previously that type IV pili (TFP) are required for wild-type levels of virulence of A. citrulli on mel...
Assessing adhesion forces of type I and type IV pili of Xylella fastidiosa bacteria by use of a microfluidic flow chamber
Xylella fastidiosa, a bacterium responsible for Pierce's disease in grapevines, possesses both type I and type IV pili at the same cell pole. Type IV pili facilitate twitching motility, and type I ...
Biology and biometry of sharpshooter Homalodisca coagulata (Homoptera : Cicadellidae) reared on cowpea
Stage-specific survival, growth, developmental biology, and biometry of the sharpshooter Homalodisca coagulata (Say) were studied in the laboratory under controlled conditions of 27 ± 1°...
Colony aggregation and biofilm formation in xylem chemistry-based media for Xylella fastidiosa
Two chemically defined media based on xylem fluid chemistry were developed for Xylella fastidiosa. These media were tested and compared to chemically defined media XDM2, XDM4 and XF-26. New media w...
Differential expression of genes of Xylella fastidiosa in xylem fluid of citrus and grapevine
Xylella fastidiosa causes a serious Pierce's disease (PD) in grapevine. Xylella fastidiosa cells from a PD strain were grown in a pure xylem fluid of a susceptible grapevine cultivar vs. xylem flui...
Estimation of Feeding Threshold for Homalodisca vitripennis (Hemiptera: Cicadellidae) and Its Application to Prediction of Overwintering Mortality
The glassy-winged sharpshooter, Homalodisca vitripennis (Germar), vectors the bacterium Xylella fastidtosa that induces Pierce's disease of grape This study determined the effect of temperature on ...
Feeding and Development of the Glassy-Winged Sharpshooter, Homalodisca vitripennis, on Australian Native Plant Species and Implications for Australian Biosecurity
In any insect invasion the presence or absence of suitable food and oviposition hosts in the invaded range is a key factor determining establishment success. The glassy-winged sharpshooter, Homalod...
Feeding and survival of citrus sharpshooters (Hemiptera : Cicadellidae) on host plants
The liquid excretion and survival of the sharpshooters Dilobopterus costalimai Young and Oncometopia facialis (Signoret), vectors of Xylella fastidiosa in citrus, were measured on various host plan...
Fluid dynamics in the functional foregut of xylem-sap feeding insects: A comparative study of two Xylella fastidiosa vectors
Xylem sap sucking insects are adapted to ingest fluids under tension. Although much has been learned about such feeding strategy, this adaptation still poses several unresolved questions, including...
Geostatistical characterization of the spatial distribution of Xylella fastidiosa sharpshooter vectors on citrus
The spatial distribution of the three principal species of sharpshooter (Dilobopterus costalimai Young Acrogonia sp. c Oncometopia facialis Signoret), vectors of Xylella fastidiosa causal agent of ...
