Mating interference of glassy-winged sharpshooters, Homalodisca vitripennis

2017 ◽  
Vol 164 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Shira D. Gordon ◽  
Nestor Sandoval ◽  
Valerio Mazzoni ◽  
Rodrigo Krugner
Keyword(s):  
Homalodisca Vitripennis ◽  
Mating Interference

scholarly journals Models Applied to Grapevine Pests: A Review

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 169
Author(s):  
Federico Lessio ◽  
Alberto Alma
Keyword(s):  
Lobesia Botrana ◽  
Grape Berry ◽  
Homalodisca Vitripennis ◽  
Flavescence Dorée ◽  
Or Groups ◽  
Scaphoideus Titanus ◽  
Different Types ◽  
Computer Based ◽  
Biological Aspects ◽  
Definition Of

This paper reviews the existing predictive models concerning insects and mites harmful to grapevine. A brief conceptual description is given on the definition of a model and about different types of models: deterministic vs. stochastics, continuous vs. discrete, analytical vs. computer-based, and descriptive vs. data-driven. The main biological aspects of grapevine pests covered by different types of models are phenology, population growth and dynamics, species distribution, and invasion risk. A particular emphasis is put on forecasting epidemics of plant disease agents transmitted by insects with sucking-piercing mouthparts. The most investigated species or groups are the glassy-winged sharpshooter Homalodisca vitripennis (Germar) and other vectors of Xylella fastidiosa subsp. fastidiosa, a bacterium agent of Pierce’s disease; the European grape berry moth, Lobesia botrana (Denis and Schiffermuller); and the leafhopper Scaphoideus titanus Ball, the main vector of phytoplasmas agents of Flavescence dorée. Finally, the present and future of decision-support systems (DSS) in viticulture is discussed.

Production of Anagrus epos Girault (Hymenoptera: Mymaridae) on Homalodisca vitripennis (Germar) (Hemiptera: Cicadellidae) eggs

2009 ◽  
Vol 51 (1) ◽  
pp. 122-129 ◽  
Author(s):  
Rodrigo Krugner ◽  
Marshall W. Johnson ◽  
David J.W. Morgan ◽  
Joseph G. Morse
Keyword(s):  
Homalodisca Vitripennis ◽  
Anagrus Epos

Glassy-Winged Sharpshooter, Homalodisca vitripennis (Hemiptera: Cicadellidae)

2008 ◽  
pp. 1623-1627
Author(s):  
Stewart B. Peck ◽  
Carol C. Mapes ◽  
Netta Dorchin ◽  
John B. Heppner ◽  
Eileen A. Buss ◽  
...  
Keyword(s):  
Homalodisca Vitripennis

scholarly journals Evaluation of Olive as a Host of Xylella fastidiosa and Associated Sharpshooter Vectors

Plant Disease ◽  
2014 ◽  
Vol 98 (9) ◽  
pp. 1186-1193 ◽  
Author(s):  
Rodrigo Krugner ◽  
Mark S. Sisterson ◽  
Jianchi Chen ◽  
Drake C. Stenger ◽  
Marshall W. Johnson
Keyword(s):  
Control Method ◽  
Xylella Fastidiosa ◽  
Primary Control ◽  
Homalodisca Vitripennis ◽  
Insecticide Treatment ◽  
Disease Symptoms ◽  
Leaf Scorch ◽  
Polymerase Chain ◽  
Low Efficiency ◽  
Branch Dieback

Olive (Olea europaea) trees exhibiting leaf scorch or branch dieback symptoms in California were surveyed for the xylem-limited, fastidious bacterium Xylella fastidiosa. Only approximately 17% of diseased trees tested positive for X. fastidiosa by polymerase chain reaction, and disease symptoms could not be attributed to X. fastidiosa infection of olive in greenhouse pathogenicity assays. Six strains of X. fastidiosa were isolated from olive in Southern California. Molecular assays identified strains recovered from olive as belonging to X. fastidiosa subsp. multiplex. Pathogenicity testing of olive strains on grapevine and almond confirmed that X. fastidiosa strains isolated from olive yield disease phenotypes on almond and grapevine typical of those expected for subsp. multiplex. Mechanical inoculation of X. fastidiosa olive strains to olive resulted in infection at low efficiency but infections remained asymptomatic and tended to be self-limiting. Vector transmission assays demonstrated that glassy-winged sharpshooter (Homalodisca vitripennis) could transmit strains of both subspp. multiplex and fastidiosa to olive at low efficiency. Insect trapping data indicated that two vectors of X. fastidiosa, glassy-winged sharpshooter and green sharpshooter (Draeculacephala minerva), were active in olive orchards. Collectively, the data indicate that X. fastidiosa did not cause olive leaf scorch or branch dieback but olive may contribute to the epidemiology of X. fastidiosa-elicited diseases in California. Olive may serve as an alternative, albeit suboptimal, host of X. fastidiosa. Olive also may be a refuge where sharpshooter vectors evade intensive areawide insecticide treatment of citrus, the primary control method used in California to limit glassy-winged sharpshooter populations and, indirectly, epidemics of Pierce's disease of grapevine.

A new species of Gonatocerus (Hymenoptera: Mymaridae) from Argentina, an egg parasitoid of Tapajosa rubromarginata (Hemiptera: Cicadellidae)

Zootaxa ◽  
2007 ◽  
Vol 1619 (1) ◽  
pp. 61-68 ◽  
Author(s):  
SERGUEI V. TRIAPITSYN ◽  
GUILLERMO A. LOGARZO ◽  
EDUARDO G. VIRLA ◽  
JESSE H. DE LEÓN
Keyword(s):  
New Species ◽  
Egg Parasitoid ◽  
Species Group ◽  
Homalodisca Vitripennis ◽  
Laboratory Conditions ◽  
The Usa ◽  
Corn Plants ◽  
A New Species ◽  
Host Associations

Specimens of Gonatocerus virlai S. Triapitsyn, Logarzo & de León sp. n., which belongs to the ater species group of Gonatocerus Nees (Mymaridae), were reared in Argentina mostly from wild-collected and sentinel eggs of the sharpshooter Tapajosa rubromarginata (Signoret) (Cicadellidae: Cicadellinae: Proconiini) on citrus and corn plants. The distribution and host associations (both natural and laboratory) of G. virlai are given. Under quarantine laboratory conditions in the USA, it was successfully reared for many generations on an unnatural host, the glassy-winged sharpshooter, Homalodisca vitripennis (Germar).

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