Phosphine resistance in Brazilian populations of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

Pimentel, M. A. G.; Faroni, L. R. D.; Guedes, Raul Narciso C.; Sousa, Adalberto Hipólito de; Tótola, Marcos Rogério

doi:10.1016/j.jspr.2008.09.001

Cited by 167 publications

(93 citation statements)

References 12 publications

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“…Of the 19 samples tested, five could be diagnosed with weak resistance and 14 with strong resistance suggesting that resistance was widespread and apparently at a high level. Therefore, our results are in accordance with earlier surveys of phosphine resistance in Brazil (Lorini et al 2007, Pimentel et al 2007, 2009) and also show evidence of resistance, but requiring further investigation for these species studied here.…”

Section: Discussionsupporting

confidence: 93%

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Spread of phosphine resistance among brazilian populations of three species of stored product insects

Pimentel¹,

Faroni²,

Silva³

et al. 2010

Neotrop. entomol.

111

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-The resistance to fumigant insecticides in stored-products insects is often recorded. Several factors influence the evolution of insecticide resistance. Among these, the frequency of applications and the migration of resistant populations are of primary importance for the stored-product insects. The aim of this study was to characterize the spectrum and investigate the status of phosphine resistance in Brazil, in 13 populations of the coleoptera Tribolium castaneum Herbst (Tenebrionidae), ten populations of Rhyzopertha dominica (Fabr.) (Bostrichidae), and eight populations of Oryzaephilus surinamensis (L.) (Silvanidae). The pattern of resistance dispersion in the populations of these species was also verified. The bioassays for the detection of phosphine resistance followed the FAO standard method. To test the influence of migration in the evolution of the phosphine resistance, the difference of mortality in the discriminating concentration and the geographical distance among each pair wise combination of collection sites were correlated. None of the populations exhibited mortality above 90% in the discriminating concentration, for the three species. Mortality in the discriminating concentration increased with the geographical distance for R. dominica and O. surinamensis. However, no significant linear response was observed among the variables for T. castaneum populations. These results suggest that the dispersion of insects and the local selection are relevant in the evolution of the phosphine resistance in populations of R. dominica and O. surinamensis. In contrast, grain trade and local selection are probably the factors that determine the evolution of the phosphine resistance in populations of T. castaneum.

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Section: Discussionsupporting

confidence: 93%

“…Moreover, phosphine resistance in stored-product insects is documented in several neighboring South American countries (Champ & Dyte 1976. Except for the global survey undertaken by FAO (Champ & Dyte 1976) , Lorini et al 2007, Pimentel et al 2007, 2009.…”

mentioning

confidence: 99%

Spread of phosphine resistance among brazilian populations of three species of stored product insects

Pimentel¹,

Faroni²,

Silva³

et al. 2010

Neotrop. entomol.

111

View full text Add to dashboard Cite

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“…It may cause a complete grain loss in only 6-mo (Coitinho et al, 2011). Its control is usually performed with synthetic insecticides, leading to important problems such as the presence of undesirable residues on food and development of resistance to insecticides as phosphine (Pimentel et al, 2009), organophosphates and pyrethroids . Recently, there has been a growing interest to evaluate the potential use of botanical insecticides, as powders, extracts or essential oils as a friendly alternative to synthetic insecticides.…”

Section: Introductionmentioning

confidence: 99%

Bioactivity of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav.) Tul. and Laureliopsis philippiana (Looser) Schodde (Monimiacea) essential oils against Sitophilus zeamais Motschulsky

Herrera-Rodríguez

Ramírez-Mendoza

Becerra-Morales

et al. 2015

Chilean J. Agric. Res.

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The maize weevil (Sitophilus zeamais Motschulsky) is one of most important pest of stored seeds worldwide, but its current control method is based on the use of synthetic insecticides, usually leading to undesirable problems such as insecticide residues on treated food, human intoxications, and insect resistance development. Therefore the search of friendly alternative methods is required. The aim of this study was to assess, under laboratory conditions, the insecticidal properties of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav.) Tul., and Laureliopsis philippiana (Looser) Schodde essential oils against S. zeamais. The phytochemical analysis of the three essential oils showed 1,8-cineole, safrole and methyleugenol as the common components; all of them documented with insecticidal activity from essential oils from other plant species. The highest toxicity (100% mortality) of these three oils acting as a contact insecticide was observed at 24 h exposure at 4% concentration. The estimated LC 50 values for P. boldus, L. sempervirens, and L. philippiana were 0.37, 1.02, and 0.28 µL g -1 , respectively. Peumus boldus exhibited the highest fumigant activity with 100% adult mortality at 30 µL oil L -1 air. At ≥ 0.5% (v/w) concentration, all essential oils showed repellent activity. These three essential oils showed a promissory insecticidal activity against the maize weevil.

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“…Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), popularly known as maize weevil, is one of the main pests of stored grains in Brazil, which present elevated biotic potential, cross-infestation and that housing inside the whole grains (Pimentel et al, 2009). Besides, it has great reproductive potential and colonizes many hosts as wheat, corn, rice, barley, triticale and oats (Lorini, 2008).…”

Section: Introductionmentioning

confidence: 99%

Essential oil of Cinnamodendron dinisii Schwanke for the control of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

Vedovatto

Júnior

Astolfi

et al. 2015

Rev. bras. plantas med.

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ABSTRACT:The use of natural compounds is a less aggressive alternative for the control of insects in stored grains, in relation to synthetic chemical agents. Plants with insecticidal properties can be used as a source of these compounds to the direct application in pest control. In this work, the essential oil of Cinnamodendron dinisii was chemically characterized and tested regarding its insecticidal and repellent effect on the control of Sitophilus zeamais in stored grains. The essential oil was obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). The insecticidal potential was evaluated through the maintenance of the insects during 24 hours in contact with several doses of the oil, in the absence of feed substrate. The Bioassays of repellency were conducted with lethal doses (LD 5 , LD 25 , LD 50 and LD 95 ) obtained from insecticidal bioassay. In order to compare the treatments, the preference index (PI) was used. The essential oil of C. dinisii had insecticidal activity against S. zeamais, causing a linear and crescent mortality with LD of 0.04, 0.17, 0.34 and 0.63 µL/cm 2 , respectively. The repellency ranged from 55.4% to 85.2%, using the LD values previously mentioned. The DL 5 was neutral regarding repellence (PI index -0,09), but from DL 25 on, the PI index was between -0.1 and -1.0, indicating repellence activity.Keywords: essential oil, insecticidal, repellence, Sitophilus zeamais. RESUMO: Óleo essencial de Cinnamodendron dinisii Schwanke para controle deSitophilus zeamais Motschulsky (Coleoptera: Curculionidae). O uso de compostos naturais é uma alternativa menos agressiva para o controle de insetos em grãos armazenados em relação aos agentes químicos sintéticos. Plantas com propriedades inseticidas podem ser usadas como fonte destes compostos para a aplicação direta no controle de pragas. No presente trabalho, o óleo essencial de Cinnamodendron dinisii foi caracterizado quimicamente e testado em relação ao seu efeito repelente inseticida no controle de Sitophilus zeamais em grãos armazenados. O óleo essencial foi obtido por hidrodestilação e analisado por cromatografia gasosa-espectrometria de massa (GC-MS). O potencial inseticida foi avaliado pela manutenção dos insetos durante 24 horas em contato com várias doses de óleo, na ausência de substrato alimentar. Os bioensaios de repelência foram realizados com as doses letais (DL 5 , DL 25 , DL 50 e DL 95 ) obtidas do bioensaio inseticida. Para comparar os tratamentos foi utilizado o índice de preferência (PI). O óleo essencial de C. dinisii apresentou atividade inseticida sobre S. zeamais, causando mortalidade linear e crescente com DL de 0,04, 0,17, 0,34 e 0,63 µL/cm 2 , respectivamente. A repelência variou entre 55,4% até 85,2%, utilizando os valores de DL acima mencionados. A DL 5 mostrou-se neutra em relação à repelência (índice PI -0,09), mas a partir de DL 25 o índice PI foi entre -0,1 e -1,0, indicando atividade de repelência.Palavras-chave: óleo essencial, inseticida, repelência, Sitophilus zeamais.

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Phosphine resistance in Brazilian populations of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

Cited by 167 publications

References 12 publications

Spread of phosphine resistance among brazilian populations of three species of stored product insects

Spread of phosphine resistance among brazilian populations of three species of stored product insects

Bioactivity of Peumus boldus Molina, Laurelia sempervirens (Ruiz & Pav.) Tul. and Laureliopsis philippiana (Looser) Schodde (Monimiacea) essential oils against Sitophilus zeamais Motschulsky

Essential oil of Cinnamodendron dinisii Schwanke for the control of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

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