Haplotypes of the Potato Psyllid, Bactericera cockerelli, on the Wild Host Plant, Solanum dulcamara, in the Pacific Northwestern United States

2013 ◽  
Vol 90 (6) ◽  
pp. 570-577 ◽  
Author(s):  
Kylie D. Swisher ◽  
Venkatesan G. Sengoda ◽  
Jacob Dixon ◽  
Erik Echegaray ◽  
Alexzandra F. Murphy ◽  
...  
2014 ◽  
Vol 91 (5) ◽  
pp. 485-491 ◽  
Author(s):  
Kylie D. Swisher ◽  
Venkatesan G. Sengoda ◽  
Jacob Dixon ◽  
Joseph E. Munyaneza ◽  
Alexzandra F. Murphy ◽  
...  

2021 ◽  
Author(s):  
Joseph E. Munyaneza

Abstract B. cockerelli is one of the most destructive potato pests in the western hemisphere. It was recognized in the early 1900s that B. cockerelli had the potential to be an invasive and harmful insect, particularly in western United States and Mexico (Šulc, 1909; Crawford, 1914; Compere, 1915; 1916; Essig, 1917). By the 1920s and 1930s, B. cockerelli had become a serious and destructive pest of potatoes in most of the southwestern United States, giving rise to the description of a new disease that became known as 'psyllid yellows' (Richards, 1928; 1931; 1933; Binkley, 1929; Richards and Blood, 1933; List and Daniels, 1934; Pletsch, 1947; Wallis, 1955). In recent years, other solanaceous crops, including tomato, pepper, eggplant, tobacco and tamarillo in a number of geographic areas have suffered extensive economic losses associated with B. cockerelli outbreaks (Trumble, 2008, 2009; Munyaneza et al., 2007a, b; 2008; 2009a, b, c, d; Liefting et al., 2008; 2009; Secor et al., 2009; Espinoza, 2010; Munyaneza, 2010; Crosslin et al., 2010; Rehman et al., 2010; Crosslin et al., 2012a, b; Munyaneza, 2012). Despite being a native of North America, B. cockerelli is also found in Central America and has recently invaded New Zealand, where it has caused extensive damage to indoor and outdoor solanaceous crops (Teulon et al., 2009; Thomas et al., 2011). B. cockerelli has recently been placed on the list of quarantine pest in EPPO region (EPPO, 2012).


2015 ◽  
Vol 68 ◽  
pp. 76-84 ◽  
Author(s):  
D.A.J. Teulon ◽  
M.G. Hill

The response to the incursion of tomato potato psyllid (TPP) Bactericera cockerelli first recorded in New Zealand in 2006 and 2008 respectively has been well documented However development of a bioprotection research programme to underpin effective crop production in the presence of TPP/CLso has not This paper examines the strategic and operational responses of the main Crown Research Institute involved in parallel with industry actions in terms of the coordination prioritisation and implementation of a proportionally increasing research programme after it became clear that eradication of these organisms was not feasible The establishment of TPP/CLso in New Zealand underlines the fragility of current integrated pest management (IPM) systems and the challenges faced by small industries to the establishment of poorly understood organisms with complex pest/disease/host plant interactions whose impacts were not immediately obvious Insights are provided into how a research response to similar establishments might be developed in the future


2008 ◽  
Vol 35 (1) ◽  
pp. 143-149 ◽  
Author(s):  
W. R. P. BOURNE

The report by Titian Ramsay Peale on birds encountered during the Wilkes Expedition was withdrawn for inaccuracy when few copies had been distributed, and re-written by John Cassin. A survey of the accounts of the petrels shows that this was not an improvement. Two important type localities for Procellaria brevipes and Thalassidroma lineata are probably wrong, and could be exchanged.


1986 ◽  
Vol 128 (1) ◽  
pp. 147-149 ◽  
Author(s):  
Daniel H. Janzen
Keyword(s):  

2020 ◽  
Vol 113 (5) ◽  
pp. 2079-2085
Author(s):  
Navneet Kaur ◽  
W Rodney Cooper ◽  
Jennifer M Duringer ◽  
Arash Rashed ◽  
Ismael E Badillo-Vargas ◽  
...  

Abstract Our previous study provided correlative evidence that morning glory species harboring endophytic fungi (Periglandula) are resistant to potato psyllid [Bactericera cockerelli (Šulc)], whereas species free of fungi often allowed psyllid development. In this study, we manipulated levels of ergot alkaloids in host tissues by inoculating clippings from potato plants with extracts from morning glories that harbor Periglandula [Ipomoea leptophylla Torrey, Ipomoea imperati (Vahl) Grisebach, Ipomoea tricolor Cavanilles, Ipomoea pandurata (L.) G. F. Meyer, and Turbina corymbosa (L.)] and one species (Ipomoea alba L.) that does not harbor the endophyte. Ergot alkaloids (clavines, lysergic acid amides, and ergopeptines) were detected in potato clippings, thus confirming that leaves had taken up compounds from solutions of crude extracts. Psyllid mortality rates on inoculated clippings ranged between 53 and 93% in treatments producing biochemically detectable levels of alkaloids, when compared with 15% mortality in water controls or the alkaloid-free I. alba. We then tested synthetic analogs from each of the three alkaloid classes that had been detected in the crude extracts. Each compound was assayed by inoculating clippings of two host species (potato and tomato) at increasing concentrations (0, 1, 10, and 100 µg/ml in solution). Psyllids exhibited a large and significant increase in mortality rate beginning at the lowest two concentrations, indicating that even very small quantities of these chemicals led to mortality. Feeding by nymphs on artificial diets containing synthetic compounds resulted in 100% mortality within 48 h, irrespective of compound. Further testing of ergot alkaloids to characterize the mode of action that leads to psyllid mortality is warranted.


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