Eradicating Bemisia tabaci Q biotype on poinsettia plants in the UK

Cuthbertson, Andrew G. S.; Buxton, J. H.; Blackburn, Lisa F.; Mathers, J. J.; Robinson, Katherine A.; Powell, Michelle E.; Fleming, David; Bell, Howard A.

doi:10.1016/j.cropro.2012.08.009

Cited by 27 publications

(31 citation statements)

References 34 publications

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“…The results obtained are comparable to those obtained in other studies of B. tabaci on poinsettia: Petroleum oil products (Certis spray oil and Tri-Tek) applied as a foliar spray or as leaf dip caused high mortality of B. tabaci eggs, nymphs and adults, treatments of B. bassiana or insecticidal soap (Savona) were moderately effective, and a tank-mix of both Tri-Tek and B. bassiana also caused high mortality of B. tabaci eggs and nymphs [19,23,28]. Petroleum oil products kill pests by anoxia (suffocation), or through direct toxic effects [29].…”

Section: Discussionmentioning

confidence: 53%

“…Therefore, research has re-focused on immersion treatments using reduced risk products and biopesticides. Bemisia tabaci is susceptible to products based on insecticidal soap or horticultural oil [17,18,19], entomopathogenic fungi such as Beauveria bassiana (Balsamo) Vuillemin and Isaria fumosorosea Wize [19,20,21], and entomopathogenic nematodes [22]. …”

Section: Introductionmentioning

confidence: 99%

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How to Start with a Clean Crop: Biopesticide Dips Reduce Populations of Bemisia tabaci (Hemiptera: Aleyrodidae) on Greenhouse Poinsettia Propagative Cuttings

Buitenhuis

Brownbridge

Brommit

et al. 2016

Insects

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(1) Global movement of propagative plant material is a major pathway for introduction of Bemisia tabaci (Hemiptera: Aleyrodidae) into poinsettia greenhouses. Starting a poinsettia crop with high pest numbers disrupts otherwise successful biological control programs and widespread resistance of B. tabaci against pesticides is limiting growers’ options to control this pest; (2) This study investigated the use of several biopesticides (mineral oil, insecticidal soap, Beauveria bassiana, Isaria fumosorosea, Steinernema feltiae) and combinations of these products as immersion treatments (cutting dips) to control B. tabaci on poinsettia cuttings. In addition, phytotoxicity risks of these treatments on poinsettia cuttings, and effects of treatment residues on mortality of commercial whitefly parasitoids (Eretmocerus eremicus and Encarsia formosa) were determined; (3) Mineral oil (0.1% v/v) and insecticidal soap (0.5%) + B. bassiana (1.25 g/L) were the most effective treatments; only 31% and 29%, respectively, of the treated B. tabaci survived on infested poinsettia cuttings and B. tabaci populations were lowest in these treatments after eight weeks. Phytotoxicity risks of these treatments were acceptable, and dip residues had little effect on survival of either parasitoid, and are considered highly compatible; (4) Use of poinsettia cutting dips will allow growers to knock-down B. tabaci populations to a point where they can be managed successfully thereafter with existing biocontrol strategies.

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Section: Discussionmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

How to Start with a Clean Crop: Biopesticide Dips Reduce Populations of Bemisia tabaci (Hemiptera: Aleyrodidae) on Greenhouse Poinsettia Propagative Cuttings

Buitenhuis

Brownbridge

Brommit

et al. 2016

Insects

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“…The success of such an approach depends on the time it takes for resistant individuals in the population to be out-selected which, in turn, may depend on the resistance mechanism and associated fitness costs of resistance. In the UK, Cuthbertson et al (2012) have developed programs of integrated pest management against B. tabaci and showed that biorational insecticides and synthetic pesticides can be combined with microbiological control agents to successfully eradicate B. tabaci from poinsettia crops provided that treatments are started in the early stages of the crop. The next challenge is to apply IPM programs in bedding plants in the springtime.…”

Section: Resultsmentioning

confidence: 99%

Bemisia tabaciBiotype Q Determined for the First Time on Poinsettia Crops in Finland and Sweden

Lemmetty

Vänninen

2014

Annales Zoologici Fennici

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We surveyed 13 Finnish and 13 Swedish poinsettia greenhouses in 2006 for Bemisia tabaci biotype Q (currently B. tabaci Mediterranean) and determined the biotype status of B. tabaci populations with PCR followed by an RFLP assay. We collected approximately 100 adult whiteflies from yellow sticky traps or from plants and stored them in 80% ethanol until DNA extraction. Total nucleic acids of two to five whiteflies per sample were extracted using FTA cards or a modified Chelex method. We showed that biotype Q was present in 10 out of 13 whitefly samples from Finnish poinsettia greenhouses and in 12 out of the 13 Swedish poinsettia greenhouses sampled. We also determined the whitefly biotypes from yellow sticky traps. The common occurrence of insecticide-resistance-prone biotype Q whiteflies on poinsettia imported into Finland and Sweden, both protected zones for B. tabaci, emphasizes the importance of preserving the quarantine status of the pest to prevent permanent establishment. Nonetheless, the increasing occurrence of a resistance-prone biotype on imported plant material will complicate preservation of the protected zone status if solely insecticides are used to control the pest.

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“…The replacement of methyl bromide, classed as one of the most efficient soil fumigants, for the last 50 years (Giannakou and Karpouzas 2003) with alternative chemical treatments poses a major problem for the treating of many insect pest species and also quarantine insects in transit. The development of non-methyl bromide quarantine treatments will allow horticultural growers to eliminate the use of an environmentally damaging chemical while still protecting the industry from losses that could be caused by the introduction of new pests and diseases (Cuthbertson et al 2009a(Cuthbertson et al , 2012a. (Fig.…”

Section: Resultsmentioning

confidence: 99%

Environmental evaluation of alternative chemicals to methyl bromide for fumigation of quarantine pests in transit

Cuthbertson

Mills

Wonter-Smith

et al. 2013

Int. J. Environ. Sci. Technol.

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The majority of recent quarantine schedules have relied on methyl bromide fumigation. However, due to the phase-out of this fumigant in January 2005 alternative treatments are needed. Four alternative chemical fumigants were tested for their potential to replace methyl bromide as a control agent for Bemisia tabaci, Liriomyza huidobrensis and Frankliniella occidentalis. Phosphine at 2 g/m 3 gave promising results at 15°C with complete mortality of all insects after 24 h exposure. Sulphuryl fluoride, ethyl formate and acetaldehyde caused severe damage to plant foliage after only 4 h exposure. However, sulphuryl fluoride produced 100 % mortality of L. huidobrensis pupae after only 2 h exposure. In a large scale test using phosphine 2 g/m 3 at 15°C complete mortality of L. huidobrensis eggs and pupae was recorded after a 24 h exposure. However, only 98.5 and 86 % mortality of B. tabaci eggs and F. occidentalis eggs, respectively, was recorded after this treatment. Treatments with phosphine produced no significant detrimental effects on subsequent plant growth. The potential of these chemicals to act as alternatives to methyl bromide as quarantine fumigants is discussed.

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Eradicating Bemisia tabaci Q biotype on poinsettia plants in the UK

Cited by 27 publications

References 34 publications

How to Start with a Clean Crop: Biopesticide Dips Reduce Populations of Bemisia tabaci (Hemiptera: Aleyrodidae) on Greenhouse Poinsettia Propagative Cuttings

How to Start with a Clean Crop: Biopesticide Dips Reduce Populations of Bemisia tabaci (Hemiptera: Aleyrodidae) on Greenhouse Poinsettia Propagative Cuttings

Bemisia tabaciBiotype Q Determined for the First Time on Poinsettia Crops in Finland and Sweden

Environmental evaluation of alternative chemicals to methyl bromide for fumigation of quarantine pests in transit

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