Potato Psyllid Selection of Host Plants

Wallis, Robert

doi:10.1093/jee/44.5.815

Cited by 21 publications

(20 citation statements)

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“…The tomato potato psyllid Bactericera cockerelli (Šulc) (TPP) is a phloem feeder with an extensive host range of more than 40 plant species (Knowlton & Thomas ; Wallis ; Butler & Trumble ) within the families Solanaceae, Convolvulaceae and Lamiaceae. Two types of plant disorders are reported to be associated with TPP feeding.…”

Section: Introductionmentioning

confidence: 99%

“…Two types of plant disorders are reported to be associated with TPP feeding. Psyllid yellows (symptoms associated with reduction of plant growth and yield, top yellowing and plant death) is thought to be caused by direct feeding damage (Wallis ), and zebra chip disease in potato is caused by the transmission of the bacterium Candidatus Liberibacter solanacearum (CLso) by TPP, but the bacterium also infects other solanaceous crops (Walker et al . ) with common symptoms associated with severe leaf curling and purpling.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of tomato potato psyllid Bactericera cockerelli (Hemiptera: Triozidae) food plant range by comparing feeding behaviour to survival of early life stages

2017

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The tomato potato psyllid (TPP, Bactericera cockerelli) is an important vector of Candidatus Liberibacter solanacearum. TPP is a phloem sap feeder, with an extensive host plant range. Measuring host plant feeding via electrical penetration graph (EPG) is a potentially less time-consuming method compared with traditional ways of assessing the host range of sap-feeding insects through feeding bioassays. Feeding behaviour of Candidatus Liberibacter solanacearum-positive adult TPP was measured using EPG technique on seven plant species: capsicum, eggplant, Cape gooseberry, poroporo, black nightshade (all Solanaceae), kumara (Convolvulaceae) and coprosma (Rubiaceae). Coprosma was used as a plant species of unknown host status. EPG data were analysed for three recording durations (5, 10 and 15 h). Data recorded for 10 h provided the most accurate prediction of subsequent feeding behaviour, allowing discrimination between host plants which could support feeding by TPP and non-host plants that could not. EPG feeding behaviour was then contrasted with the survival of early life stages of TPP on four of the seven plant species under a choice situation on whole plants. The one discrepancy between the two methods for separating host from non-host plants was with Cape gooseberry. EPG suggested that Cape gooseberry was as acceptable for feeding by TPP as capsicum, but whole-plant assays showed survival of early nymph stages on Cape gooseberry was poor. EPG has merit as a tool for rapid assessment of plants at risk of feeding damage from a phloem sap feeder. However, a degree of experience is required to operate this technology successfully and to interpret the output data. The wire attachment on the insects may have a negative influence on initial plant contact. Therefore, a long recording time around 10 h may be required to offset this limitation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of tomato potato psyllid Bactericera cockerelli (Hemiptera: Triozidae) food plant range by comparing feeding behaviour to survival of early life stages

2017

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“…In the early 1900s, TPP was recognized as a potential invasive insect (Compere, 1916;Essig, 1917). The TPP is believed to have originated in North America (Wallis, 1951), and is reported to be associated with Zebra Chip disorder in potatoes, which reduces potato yield and quality (Munyaneza et al, 2007). Zebra Chip is characterized by symptoms that develop in potato tubers: a severe dark and light stripe pattern in raw and fried chips processed from infected tubers, affecting their taste and making them commercially unacceptable.…”

Section: Introductionmentioning

confidence: 99%

“…The TPP is a phloem feeder, with a wide range of hosts (Wallis, 1951;Martin, 2008;Thomas et al, 2011) within the families Solanaceae, Convolvulaceae, and Laminaceae (Martin, 2008;Thomas et al, 2011). Its feeding on host plants is highly associated with Lso transmission (Butler et al, 2011;Levy et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Stylet penetration activities linked to the acquisition and inoculation of Candidatus Liberibacter solanacearum by its vector tomato potato psyllid

Sandanayaka

Moreno²,

Tooman

et al. 2014

Entomologia Exp Applicata

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The tomato potato psyllid (TPP), Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is the main vector of the bacterium Candidatus Liberibacter solanacearum (Lso), a major disease of solanaceous crops. Feeding of TPP is associated with Lso transmission. However, very little is known about the stylet penetration activities linked to acquisition and inoculation of Lso. The electrical penetration graph (EPG)‐DC system was used to monitor stylet penetration activities during acquisition and inoculation of Lso by individual TPP on tomato [Solanum lycopersicum L. (Solanaceae)]. Female TPP from Lso‐free and Lso‐infected colonies were used in acquisition and inoculation tests, respectively. In the acquisition tests, TPP were tested for Lso after EPG recording of their stylet penetration activities on Lso‐infected tomato shoots. In the inoculation tests, samples from the tomato plants on which the stylet penetration of Lso‐infected TPP had been recorded were tested for Lso infection. The relationships between qPCR results and the EPG waveforms (C, G, D, E1, and E2) representing the main stylet penetration activities performed by individual insects in inoculation and acquisition tests were investigated. Results confirmed that a single adult TPP is capable of infecting a plant with Lso. Our data suggest that acquisition of the bacteria occurs during phloem ingestion (E2), and inoculation is likely associated with salivation into the phloem sieve elements (E1). The durations of EPG parameters were not significantly different between Lso‐infected and Lso‐free TPP (later shown by qPCR) in acquisition tests. In inoculation tests, the durations of E1 or E2 recorded from TPP on Lso‐infected and Lso‐free plants that were later shown by qPCR were not significantly different. However, C was shorter on Lso‐infected plants than on Lso‐free plants, where TPP performed phloem activities. The minimum plant access period required for Lso transmission by a single TPP was estimated to be ca. 2 h, with an acquisition threshold of about 36 min.

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“…The tomato/potato psyllid (TPP) is a pest of solanaceous crops and is reported to survive and develop on Ϸ40 species in 20 plant families (Pletsch 1947, Wallis 1951, 1955Butler and Trumble 2012a). Nymph development is known to vary with host plant species (Abdullah 2008, Yang et al 2010, and host choice has been shown to vary among plant species (Yang et al 2010, Butler andTrumble 2012a).…”

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confidence: 99%

The Influence of Maturity and Variety of Potato Plants on Oviposition and Probing ofBactericera cockerelli(Hemiptera: Triozidae)

Prager¹,

Lewis

Michels

et al. 2014

Environ Entomol

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The ecological theory on host plant choice by herbivores suggests that mothers should choose plants that will maximize their offspring's success. In annual host plants, physiology (and therefore host suitability) is sometimes influenced by maturity and growth stage, which may influence female choice. Potato plants were grown under greenhouse conditions and used in choice and no-choice bioassays to determine the effect of plant maturity and variety on oviposition and number of stylet sheaths (which approximate stylet insertions) by tomato/potato psyllids. No-choice bioassays suggested that maturity (time since planting) did not influence oviposition behavior, but oviposition varied significantly among potato plant varieties. There was a significant effect of both maturity and variety on the number of stylet sheaths, which peak toward the middle of the growing season. We also examined tomato/potato psyllid responses to plants grown in a commercial field and again found no effect on oviposition but differences in stylet sheaths. The results suggest that differential susceptibility to zebra chip disease may be associated with unequal feeding rates. Future studies should examine whether the maturity of plants influences larval fitness. Finally, potato variety has an influence on both oviposition and "probing," and has implications for management strategies and the development of resistant potato varieties.

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Potato Psyllid Selection of Host Plants

Cited by 21 publications

References 0 publications

Assessment of tomato potato psyllid Bactericera cockerelli (Hemiptera: Triozidae) food plant range by comparing feeding behaviour to survival of early life stages

Assessment of tomato potato psyllid Bactericera cockerelli (Hemiptera: Triozidae) food plant range by comparing feeding behaviour to survival of early life stages

Stylet penetration activities linked to the acquisition and inoculation of Candidatus Liberibacter solanacearum by its vector tomato potato psyllid

The Influence of Maturity and Variety of Potato Plants on Oviposition and Probing ofBactericera cockerelli(Hemiptera: Triozidae)

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