Susceptibility of Females and Males of<i>Bemisia tabaci</i>(Gennadius) B-Biotype and<i>Trialeurodes vaporariorum</i>(Westwood) to Thiamethoxam

Santillán-Ortega, Candelario; Rodríguez-Maciel, J. Concepción; López-Collado, José; Díaz-Gómez, Ovidio; Lagunes-Tejeda, Ángel; Carrillo-Martínez, José L.; Robles-Bermúdez, Agustín; Aguilar-Medel, Sotero; Silva-Aguayo, Gonzalo

doi:10.3958/059.036.0206

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…For squash leaf curl virus, however, female and male B. tabaci has the same efficiency40. There were no differences in response between male and female whitefly when they were exposed to thiamethoxam, a widely used neonicotinoid insecticide41. Molecular basis of sex determination has been traditionally focused on model insects with readily available genomes, including D. melanogaster 4243, Apis mellifera 4445, Nasonia 46, and T. castaneum 47.…”

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Transcriptomic dissection of sexual differences in Bemisia tabaci, an invasive agricultural pest worldwide

Xie

Guo

Jiao

et al. 2014

Sci Rep

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Sex difference involving chromosomes and gene expression has been extensively documented. In this study, the gender difference in the sweetpotato whitefly Bemisia tabaci was investigated using Illumina-based transcriptomic analysis. Gender-based RNAseq data produced 27 Gb reads, and subsequent de novo assembly generated 93,948 transcripts with a N50 of 1,853 bp. A total of 1,351 differentially expressed genes were identified between male and female B. tabaci, and majority of them were female-biased. Pathway and GO enrichment experiments exhibited a gender-specific expression, including enriched translation in females, and enhanced structural constituent of cuticle in male whiteflies. In addition, a putative transformer2 gene (tra2) was cloned, and the structural feature and expression profile of tra2 were investigated. Sexually dimorphic transcriptome is an uncharted territory for the agricultural insect pests. Molecular understanding of sex determination in B. tabaci, an emerging invasive insect pest worldwide, will provide potential molecular target(s) for genetic pest control alternatives.

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Transcriptomic dissection of sexual differences in Bemisia tabaci, an invasive agricultural pest worldwide

Xie

Guo

Jiao

et al. 2014

Sci Rep

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“…Las CL50/CL90 mostraron mayor susceptibilidad en hembras, posiblemente porque que su tasa de alimentación es mayor para cubrir sus necesidades de proteína (Cresoni-Pereira y Zucoloto 2001). En la cohorte hembra/macho la tasa de sobrevivencia fue mayor, lo que también podría indicar que al combinar la mortalidad de ambos sexos la respuesta se homogeniza y con ello se reduce el error estándar de la pendiente de regresión dosis-mortalidad (Sanderson et al 1989, Santillán et al 2011). Las RR50/RR90 para los machos fue de 3.4X/6.6X; en hembra/macho las RR50/RR90 de 3.9X/5.8X, lo que indica la susceptibilidad de las moscas.…”

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Caracterización de la Susceptibilidad al Malatión en la Mosca de las Indias Occidentales 1

García-Rojas

Robles-Bermúdez

Vega-Frutis

et al. 2023

Southwestern Entomologist

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ResumenEn Nayarit, México, desde el 2003 se ha aplicado malatión dentro de las acciones del manejo integrado de plagas para controlar a las moscas de la fruta del género Anastrepha, lo que hace necesario conocer el estado de susceptibilidad intrínseca de estos insectos al insecticida. Se probó la susceptibilidad de hembras, machos, y la combinatoria 50:50 hembras/machos de Anastrepha obliqua (Macquart) sin presión de selección por cuatro años. La menor susceptibilidad fue a 1,000 y 10,000 mg de malatión por litro, siendo más susceptibles las hembras que los machos, y la combinatoria de hembras/machos 50:50. Los datos obtenidos pueden funcionar como comparativo en ensayos de susceptibilidad de especímenes a los que actualmente se les ha manejado con concentraciones aproximadas de malatión de 8,300 ppm en el campo.

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“…However, insecticide resistance studies on whiteflies are quickly increasing in the Eastern Palearctic and Indo‐Malay regions likely due to the enhanced problems detected with the current spreading of the MED species in China and India (Basit et al, , ; Yuan et al, ; Naveen et al, ; Zheng et al, ; Wang et al, , ). In curious contrast, we are aware of only three studies on whitefly resistance to insecticides in Neotropical America, two of them from Central America (Byrne et al, ; Satilla‐Ortega et al, ), and a single study from South America reporting low to moderate levels of resistance to the neonicotinoids imidacloprid and thiamethoxam (Silva et al, ). Here we attempted to mitigate this deficiency building on the previous effort and expanding the survey to a broader and more representative number of populations and insecticides, and also estimating the prevailing CFL in Brazil.…”

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confidence: 99%

Insecticide resistance and control failure likelihood of the whitefly Bemisia tabaci (MEAM1; B biotype): a Neotropical scenario

Dângelo

Michereff-Filho

Campos

et al. 2017

Annals of Applied Biology

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Insecticide resistance is a standing concern for arthropod pest species, which may result in insecticide control failure. Nonetheless, while insecticide resistance has remained a focus of attention for decades, the incurring risk of insecticide control failure has been neglected. The recognition of both problems is paramount for arthropod pest management and particularly so when invasive species notoriously difficult to control and exhibiting frequent cases of insecticide resistance are considered. Such is the case of the putative whitefly species Middle East-Asia Minor I (MEAM1) (Bemisia tabaci B-biotype), for which little information is available in the Neotropics. Thus, the likely occurrence and levels of resistance to seven insecticides were surveyed among Brazilian populations of this species. The likelihood of control failure to the five insecticides registered for this species was also determined. Resistance was detected to all insecticides assessed reaching instances of high (i.e. >100×) to very high levels (>1000×) in all of them. Overall efficacy was particularly low (<60%) and the control failure likelihood was high (>25%) and frequent (70%) for the bioinsecticide azadirachtin, followed by spiromesifen and lambda-cyhalothrin. In contrast, the likelihood of control failure was low for diafenthiuron, and mainly imidacloprid. As cartap and chlorantraniliprole are not used against whiteflies, but are frequently applied on the same host plants, inadvertent selection probably took place leading to high levels of resistance, particularly for the latter. The resistance levels of cartap and chlorantraniliprole correlated with imidacloprid resistance (r > 0.65, P < 0.001), suggesting that the latter use may have somewhat favoured inadvertent selection for resistance to both compounds not used against the whitefly. A further concern is that chlorantraniliprole use in the reported scenario may allow cross selection to cyantraniliprole, a related diamide with recent registration against whiteflies demanding attention in designing resistance management programmes.

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Susceptibility of Females and Males ofBemisia tabaci(Gennadius) B-Biotype andTrialeurodes vaporariorum(Westwood) to Thiamethoxam

Cited by 4 publications

References 35 publications

Transcriptomic dissection of sexual differences in Bemisia tabaci, an invasive agricultural pest worldwide

Transcriptomic dissection of sexual differences in Bemisia tabaci, an invasive agricultural pest worldwide

Caracterización de la Susceptibilidad al Malatión en la Mosca de las Indias Occidentales 1

Insecticide resistance and control failure likelihood of the whitefly Bemisia tabaci (MEAM1; B biotype): a Neotropical scenario

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