Climatological Potential for Scirtothrips Dorsalis (Thysanoptera: Thripidae) Establishment in the United States

Abstract

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Comparison of two populations ofPseudophilothrips ichini(Thysanoptera: Phlaeothripidae) as candidates for biological control of the invasive weedSchinus terebinthifolia(Sapindales: Anacardiaceae)

“…A similar approach has been used to predict suitable areas for other insects (e.g. Lapointe et al, 2007;Manrique et al et al, 2008a;Nietschke, Borchert, Magarey, & Ciomperlik, 2008).…”

Scientific Opinion on the pest categorisation of Scirtothrips dorsalis

“…However, in Japan, adult females diapause in temperate regions (Shibao and Tanaka, 2003; cited by Toda et al, 2014) and more than five generations occur per year (Tatara, 1994). Up to 18 generations in the most favourable conditions of North America were predicted by Nietschke et al (2008) using North Carolina State University (NCSU) Animal and Public Health Information System (APHIS) Plant Pest Forecasting System (NAPPFAST). In Japan, S. dorsalis starts to lay eggs in late March or early April (Shibao et al, 1991).…”

“…However, there has been no detailed assessment of the potential impacts to outdoor crops in southern parts of the EU. Although many factors affect the magnitude of impacts, the suitability of the climate and the number of generations that can develop per year have been used by Nietschke et al (2008) to assess the potential for impacts in North America.…”

“…These locations are (i) Jeju Island in southern South Korea (latitude 126° E, longitude 30° N), where Heub et al (2013) found that the damage to citrus was related to the population density of the third and sixth generations of S. dorsalis and the suitability of host plants surrounding the orchards; and (ii) Shizuoka (latitude 138° E, longitude 35° N) in southern Japan (Tatara and Furuhashi, 1992). Nietschke et al (2008) mapped the number of generations in North America possible for S. dorsalis based on the minimum threshold of development of 9.7 °C with 281 DD for each generation obtained by Tatara (1994) and a minimum lethal temperature of -4 °C based on a related species, Thrips palmi, with a similar development threshold and DD requirement (McDonald et al, 2000). The Panel applied these DD calculations and lethal temperature limits to a 10 latitude and 10 longitude gridded 1961-1990 monthly climatology (New et al, 2002) and mapped the number of generations possible in a geographic information system (ArcGIS).…”

Occurrence of Leucothrips furcatus, Scirtothrips dorsalis, and Tenothrips frici (Thysanoptera: Thripidae) Previously Unreported from Georgia

“…Since this pest invaded the USA in 2005, established populations of S. dorsalis have been reported on numerous hosts from 30 counties in Florida and 8 counties in Texas, with detections in Alabama, Louisiana, and Georgia Diffie & Srinivasan 2010;Kumar et al 2011). During the early years of its invasion, climatological modeling to predict distribution in the USA ruled out its establishment in the northern part of the country, as S. dorsalis was thought not to overwinter in regions having a temperature below −4 °C for 5 d or more per year (Nietschke et al 2008). However, recently S. dorsalis has been detected on roses (Rosa spp.…”