First record of <i>Bemisia tabaci</i> biotype Q in New Zealand

Abstract

In January 2006 a grower reported failure to control whitefly on greenhouse capsicums in Karaka South Auckland despite high release rates of the biological control agent Encarsia formosa The whitefly was identified morphologically as Bemisia tabaci and capsicum represents a new host record for this species in New Zealand Bemisia tabaci is polyphagous and 24 biotypes are currently recognised worldwide Biotypes B and Q have attracted international attention in the past two decades because of their rapid global spread They are morphologically indistinguishable DNA sequence analyses of samples collected in a survey in 2006 from capsicums and poinsettias revealed the presence of B tabaci biotype Q in New Zealand In a subsequent survey commissioned by Biosecurity New Zealand 12 sites were visited between 27 June and 30 August 2006 Bemisia tabaci was only detected at one site but on multiple hosts Sequences were identical to biotype Q sequences detected during the preliminary survey and to B tabaci biotype Q samples from overseas

Biotype and insecticide resistance status of Bemisia tabaci populations from Peninsular Malaysia

“…Biotype assessment in this study revealed for the first time the introduction of the invasive Q biotype in at least one location in Malaysia . This invasion was likely to happen, as the countries surrounding Malaysia such as India (Rekha et al 2005), China (Chu et al 2005), South Korea (Lee et al 2005), Japan (Ueda and Brown 2006), Australia (Liu et al 2007) and New Zealand (Scott et al 2007), had been invaded earlier. Most importantly, developing countries such as Malaysia lack effective monitoring or quarantine protocols (Vurro et al 2010).…”

Chemical class rotations for control of Bemisia tabaci (Hemiptera: Aleyrodidae) on poinsettia and their effect on cryptic species population composition

“…22,23 Since its discovery in Spain in 1997 24 and in Israel in 1999, 25 MED has caused severe crop damage in the Mediterranean Basin in both protected and open agriculture 26,27 and has exhibited an invasive ability arguably matched only by MEAM1. MED has recently been reported in Argentina and Uruguay, 28 China, 29 Costa Rica, 30 France, 31 Guatemala, 32 Japan, 33 Korea, 34 Mexico, 35 New Zealand, 36 Taiwan 37 and Tunisia, 38 as well as in the United States. 39 -42 In the United States, nuclear microsatellite markers exhibiting a high degree of concordance with mitochondrial markers uncovered a major east-west phylogeographic break within MED populations invading that country.…”

Performance of Bemisia tabaci MEAM1 and Trialeurodes vaporariorum on Tomato chlorosis virus (ToCV) infected plants

“…For identification of whiteflies, total DNA extraction by the Chelex protocol (Walsh, Metzger, & Higuchi, 1991) was performed, and the DNA was used as template for PCR analyses using primers C1-J-2195 and TL2-N-3014 of the mtCOI gene (Simon et al, 1994) for B. tabaci and primers TvapF and WFrev (Scott, Workman, Drayton, & Burnip, 2007) for T. vaporariorum. The populations were maintained in insect-proof rearing cages in the greenhouse, and the purity was monitored every 6 months by molecular analyses.…”