Reproduction of the whitefly <i>Bemisia tabaci</i> (Hemiptera: Aleyrodidae) B biotype in maize fields (<i>Zea mays</i> L.) in Brazil

Quintela, E. D.; Abreu, A. G. de; Lima, Julyana F. dos S.; Mascarin, Gabriel Moura; Santos, Jardel Barbosa dos; Brown, Judith K.

doi:10.1002/ps.4259

Cited by 32 publications

(35 citation statements)

References 25 publications

(36 reference statements)

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“…Under conducive weather conditions, I. javanica can cause outstanding epizootics in whitefly populations (Cabanillas & Jones, 2009;Lacey et al, 2008;Quintela et al, 2016 TA B L E 3 Interactions between Isaria javanica CG1282 (5 × 10 6 conidia/ml) and buprofezin based on observed mortality to Bemisia tabaci second nymphal instars under screenhouse conditions host stage and the incubation time (Jaronski, 2010;Roberts & St. Leger, 2004). Low relative humidity might explain the low nymphal mortality observed in our study as conidia require high moisture for germination (Samish et al, 2014).…”

Section: Discussionmentioning

confidence: 76%

“…Under conducive weather conditions, I. javanica can cause outstanding epizootics in whitefly populations (Cabanillas & Jones, ; Lacey et al., ; Quintela et al., ). Here, all isolates of I. javanica induced B. tabaci mortality, but results were variable among isolates tested.…”

Section: Discussionmentioning

confidence: 99%

“…In Brazil, the propagation and increase in the population of the whitefly biotype B (Middle East Asia Minor 1-MEAM1) have been favoured by the agricultural system (with three growing seasons), the large number of host plants and the tropical climate (Quintela et al, 2016). Repetitive insecticide sprays have increased selection pressure and accelerated development of resistance to multiple classes of insecticides in different regions of the world (Cahill, Gorman, Day, & Denholm, 1996;Cahill, Jarvis, Gorman, & Denholm, 1996;Horowitz, Kontsedalov, & Ishaaya, 2004;Naveen et al, 2017;Silva, Omoto, Bleicher, & Dourado, 2009).…”

mentioning

confidence: 99%

“…(Ascomycota: Hypocreales) (Faria & Wraight, 2001;De Faria & Wraight, 2007;Lacey, Wraight, & Kirk, 2008). Isaria javanica (Friedrichs & Bally) Samson & Hywel-Jones has been considered a promising biocontrol candidate of whiteflies mainly due to its high virulence and ability to cause natural epizootics (Cabanillas & Jones, 2009;Quintela et al, 2016). Several studies have shown the potential of I. javanica against B. tabaci biotype B (Cabanillas & Jones, 2009;Mascarin, Kobori, Quintela, Arthurs, & Delalibera Júnior, 2014;Mascarin, Kobori, Quintela, & Delalibera Júnior, 2013;Tian et al, 2016), yet few studies have documented the compatibility and combination between this fungus and insecticides for B. tabaci control.…”

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confidence: 99%

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Enhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides

Santos

Quintela

Mascarin³

et al. 2018

J Applied Entomology

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The aim of this current study was to evaluate the mortality of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs by the combination between the entomopathogenic fungus Isaria javanica (Friedrichs & Bally) Samson & Hywel‐Jones and synthetic chemical insecticides. The bioefficacy of I. javanica and the insect growth regulators named spiromesifen and buprofezin was tested alone and in combination against B. tabaci nymphs under screenhouse conditions. The in vitro compatibility between these two control agents was previously assessed under laboratory conditions. The sublethal concentration (LC25) of these insecticides towards second‐instar nymphs was determined and then mixed with the fungal treatments to investigate the type of interaction. All I. javanica isolates at 5 × 107 conidia/ml inflicted nymphal mortality by up to 62.4%. The insecticides did not influence the germination and mycelial growth of the selected I. javanica isolate CG1282. In general, the insecticide–fungus combinations increased nymphal mortalities in comparison with their single counterparts. Combinations with the fungus and buprofezin or spiromesifen augmented nymphal mortality by 10% and 24%, respectively, in comparison with the fungus alone. Additive interaction was found with the combination of the I. javanica CG1282 at 1 × 106 conidia/ml and spiromesifen at 1.56 ppm, and additive and synergistic interactions were achieved with the fungus at 5 × 106 conidia/ml and spiromesifen at 3.12, 6.25 and 12.5 ppm. Additive interactions were also observed from mixtures of fungus at 5 × 106 and buprofezin at 3.12 and 6.25 ppm. Only combinations of I. javanica with spiromesifen reduced to some extent the mycosis on dead nymphs. The joint action of I. javanica with sublethal doses of these insecticides may be a promising tool to assist in the integrated management system for B. tabaci.

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Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Enhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides

Santos

Quintela

Mascarin³

et al. 2018

J Applied Entomology

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“…Also maize fields have been reported to be damaged by the colonization of biotype B whiteflies (Quintela et al, 2016). B. tabaci not only causes disintegration of chloroplasts, sooty mold by honeydew, and lower carotenoid in many plants, especially the ones belonging to Solanaceae (Masuda et al, 2016), but carries and transmits several species of Geminiviruses which can lower crop yields tremendously (Shi et al, 2014a).…”

Section: Introductionmentioning

confidence: 99%

Bensulfuron-Methyl Treatment of Soil Affects the Infestation of Whitefly, Aphid, and Tobacco Mosaic Virus on Nicotiana tabacum

Islam

et al. 2016

Front. Plant Sci.

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Bensulfuron-methyl (BSM) is widely used in paddy soil for weed control. BSM residue in the soil has been known to inhibit the growth of sensitive crop plants. However, it is unknown whether BSM residue can affect the agrosystem in general. In this study, we have found significant effects of BSM on the infestation of Bemisia tabaci, Myzus persicae, and Tobacco mosaic virus (TMV) in Nicotiana tabacum. The soil was treated with BSM before the pest inoculation. The herbicide-treated tobaccos showed resistance to B. tabaci, but this resistance could not be detected until 15-day post-infestation when smaller number of adults B. tabaci appeared. In M. persicae assay, the longevity of all development stages of insects, and the fecundity of insects were not significantly affected when feeding on BSM-treated plants. In TMV assay, the BSM treatment also reduced virus-induced lesions in early infection time. However, the titer of TMV in BSM treated plants increased greatly over time and was over 40-fold higher than the mock-infected control plants after 20 days. Further studies showed that BSM treatment increased both jasmonic acid (JA) and salicylic acid (SA) levels in tobacco, as well as the expression of target genes in the JA and SA signaling pathways, such as NtWIPK, NtPR1a, and NtPAL. NtPR1a and NtPAL were initially suppressed after virus-inoculation, while NtRDR1 and NtRDR6, which play a key role in fighting virus infection, only showed up- or were down-regulated 20 days post virus-inoculation. Taken together, our results suggested that BSM residue in the soil may affect the metabolism of important phytohormones such as JA and SA in sensitive plants and consequently affect the plant immune response against infections such as whitefly, aphids, and viruses.

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Earlier than expected introductions of the Bemisia tabaci B mitotype in Brazil reveal an unprecedented, rapid invasion history

Paredes‐Montero

Rizental

Quintela

et al. 2022

Ecology and Evolution

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During 1991, in Brazil, the presence of the exotic Bemisia tabaci B mitotype was reported in São Paulo state. However, the duration from the time of initial introduction to population upsurges is not known. To investigate whether the 1991 B mitotype outbreaks in Brazil originated in São Paulo or from migrating populations from neighboring introduction sites, country‐wide field samples of B. tabaci archived from 1989–2005 collections were subjected to analysis of mitochondrial cytochrome oxidase I (mtCOI) and nuclear RNA‐binding protein 15 (RP‐15) sequences. The results of mtCOI sequence analysis identified all B. tabaci as the NAFME 8 haplotype of the B mitotype. Phylogenetic analyses of RP‐15 sequences revealed that the B mitotype was likely a hybrid between a B type parent related to a haplotype Ethiopian endemism (NAFME 1–3), and an unidentified parent from the North Africa‐Middle East (NAF‐ME) region. Results provide the first evidence that this widely invasive B mitotype has evolved from a previously undocumented hybridization event. Samples from Rio de Janeiro (1989) and Ceará state (1990), respectively, are the earliest known B mitotype records in Brazil. A simulated migration for the 1989 introduction predicted a dispersal rate of 200–500 km/year, indicating that the population was unlikely to have reached Ceará by 1990. Results implicated two independent introductions of the B mitotype in Brazil in 1989 and 1990, that together were predicted to have contributed to the complete invasion of Brazil in only 30 generations.

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Reproduction of the whitefly Bemisia tabaci (Hemiptera: Aleyrodidae) B biotype in maize fields (Zea mays L.) in Brazil

Cited by 32 publications

References 25 publications

Enhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides

Enhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides

Bensulfuron-Methyl Treatment of Soil Affects the Infestation of Whitefly, Aphid, and Tobacco Mosaic Virus on Nicotiana tabacum

Earlier than expected introductions of the Bemisia tabaci B mitotype in Brazil reveal an unprecedented, rapid invasion history

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