Efeito da dose e exposição à terra de diatomácea de diferentes insetos em milho armazenado

Antunes, Luidi Eric Guimarães; Filho, Edar Ferrari; Gottardi, Roberto; Sant’Ana, Josué; Dionello, Rafael Gomes

doi:10.1590/s1808-16572013000200005

Cited by 5 publications

(4 citation statements)

References 13 publications

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“…(biochemical oxygen demand) chamber at 25 ± 3 ºC, with RU (relative air humidity) of 70 ± 10% and photophase of 12 h. The evaluations of susceptibility were performed 24 and 48 h after the treatments. Insects that did no move for two minutes were considered as dead (Antunes et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Insecticide activity of clove essential oil on bean weevil and maize weevil

Jairoce

Teixeira

Nunes

et al. 2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TBean weevil and maize weevil can cause considerable damage to stored grains. These insects are mainly controlled with synthetic chemical insecticides, which may bring serious problems to human and environmental health. Therefore, this study aimed to evaluate the efficiency of the essential oil of clove [Syzygium aromaticum (L.) Merrill & Perry (Myrtaceae) (origin: Bahia, season Sep.2014-Feb.2015] in the control of S. zeamais and A. obtectus under laboratory conditions. The essential oil was extracted through the classic hydrodistillation process and its chemical components were identified via gas chromatography. Oil efficiency was tested at the doses of 35, 17.9, 8.9, 3.6, 1.8, 0.4 and 0.2 µL g -1 (derived from a pilot study) for insect control and the LC 50 was determined. The results showed that eugenol was the major compound. The essential oil caused mortality of 100% for both species 48 h after treatment with the concentrations of 17.9 and 35 µL g Atividade inseticida do óleo essencial de cravo-da-índia sobre o caruncho-do-feijão e o gorgulho-do-milho R E S U M OO caruncho-do-feijão e o gorgulho do milho podem causar grandes prejuízos aos grãos armazenados. Entre as alternativas de controle está a utilização de óleos essenciais de plantas com propriedades inseticidas; objetivou-se, assim, avaliar a eficiência do óleo essencial de cravo-da-índia no controle de S. zeamais e A. obtectus em condições de laboratório. O óleo essencial foi extraído por processo clássico de hidrodestilação e seus constituintes químicos foram identificados por cromatografia gasosa. A eficiência deste óleo foi testada nas doses 35; 17,9; 8,9; 3,6; 1,8; 0,4 . A CL 50 para A. obtectus foi 9,45 µL g -1 contra 10,15 µL g -1 do S. zeamais. A utilização do óleo essencial de cravo-da-índia representa uma alternativa promissora a ser usada em condições de armazenagem para o manejo integrado de pragas de grãos armazenados.

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Section: Methodsmentioning

confidence: 99%

Insecticide activity of clove essential oil on bean weevil and maize weevil

Jairoce

Teixeira

Nunes

et al. 2016

Rev. bras. eng. agríc. ambient.

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“…Pinto (2008), reported satisfactory mortality rates applying Diatomaceous Earth on three beetle species. Antunes et al (2013) performed another study with beetles and found positive results. Nwaubani et al (2014) and Kavallieratos et al (2015) corroborate the potential of Diatomaceous Earth for pest control proposed by the previous authors.…”

Section: Discussionmentioning

confidence: 99%

Screening test of Diatomaceous Earth as an alternative control method for Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) eggs

Oliveira¹,

Magatão²,

Araújo³

et al. 2020

Luminária

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The sugarcane borer Diatraea saccharalis is a pest that causes damage to sugarcane fields. The female lays imbricated egg masses on the leave. They cause the greatest damage as larvae, and thus, control before egg hatching is desired to prevent the development of this pest and avoid damage to the plant. Diatomaceous Earth, or diatomite, is inert dust with insecticidal properties. In this work, we aimed to test the activity of Diatomaceous Earth on viable eggs of D. saccharalis as a potential alternative control method for sugarcane borer. D. saccharalis eggs 1 day after oviposition were immersed in a Diatomaceous Earth solution (10% - w/v) for 5, 10, or 15 min and observed every 24 h for 216 h of analysis. During the first 72 h, there were no changes observed in egg morphology, which maintained an oval shape, pale yellow in color. After 96 h, chorion striations were observed in the treatments with 10 and 15 min of exposure and were not present in the chorion controls eggs. Differences between embryo's number it was observed after 96h in the 15 min treatment when compared with the untreated eggs control. Besides that, control larvae completely hatched in 192 h and the treatment with 10 min and 15 min not shown completely hatching suggesting a delay in the embryonic development of the D. saccharalis larvae. Overall, our study is the first report of the application of D. saccharalis eggs, and we believe that Diatomaceous Earth could be a potential tool for the control of Diatraea eggs, however, thorough investigations are required to elucidate the action of this powder on Diatraea and would be an alternative method to interrupt the biological cycle of the pest.

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“…Treated corn grains were then infested with 10 unsexed adults of S. zeamais with 10 to 14 days of age, arranged in each replicate and maintained in a BOD (Biochemical oxygen demand) chamber, at temperature of 25 ± 3 ºC, humidity of 70 ± 10% and photophase of 12 h. The number of live insects was evaluated from the first to the 29th day after treatment. The number of live insects in each dish was quantified, and the insects that did not move for 2 min were considered as dead (Antunes et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Efficiency of inert mineral dusts in the control of corn weevil

Jairoce¹,

Teixeira

Nunes

et al. 2016

Rev. bras. eng. agríc. ambient.

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Corn weevil (Sitophilus zeamais) may cause great losses in the crop and in stored corn grains. This insect is controlled with the use of chemical insecticides, which may cause serious damage to human health. One alternative of control is the use of inert dusts. The objective of this study was to evaluate the efficiency of inert dusts in the control of S. zeamais under laboratory conditions. The experiment was conducted in 2014, in a completely randomized design, and the treatments consisted of basalt dust with three different granulometries (A, B and C) and diatomaceous earth, each of which at the doses of 2 and 4 kg t-1 and a control (no application). Each treatment had four replicates, and the sample unit consisted of 20 g of corn grains infected with 10 adults of S. zeamais kept in temperature-controlled chamber at 25 °C, 70% RH and photophase of 12 h. The dust efficiency was calculated using the equation of Abbott. The mortality rate was higher with the use of diatomaceous earth, reaching 100% after 5 days of exposure and the percentage of control for basalt dusts, 29 days after treatment, was above 80%.

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Efeito da dose e exposição à terra de diatomácea de diferentes insetos em milho armazenado

Cited by 5 publications

References 13 publications

Insecticide activity of clove essential oil on bean weevil and maize weevil

Insecticide activity of clove essential oil on bean weevil and maize weevil

Screening test of Diatomaceous Earth as an alternative control method for Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) eggs

Efficiency of inert mineral dusts in the control of corn weevil

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