Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28656 |
Resumo: | The present study evaluated the effect of different rates of chlorantraniliprole, chlorantraniliprole + lambda-cyhalothrin, spinosad, and chlorfenapyr on their selectivity for the pupae and adults of Trichogramma pretiosum. The negative effect of majority of the insecticides tested on most of the parasitoids was directly proportional to the rate of the insecticide applied. Chlorantraniliprole at a rate of 10 g a.i. ha-1 was classified as harmless (class 1) to both pupae and adults of the parasitoid. The effect of chlorantraniliprole at a rate of 20 to 50 g a.i. ha-1 varied from harmless (class 1) to slightly harmful (class 2) to the adults of T. pretiosum. Chlorantraniliprole 10 + lambda-cyhalothrin at 5 g a.i. ha-1 was classified as harmless (class 1) to the pupae and moderately harmful (class 3) to the adults of T. pretiosum. On the contrary, the highest rate of chlorantraniliprole 50 + lambda-cyhalothrin tested (i.e., 25 g a.i. ha-1) was classified as slightly harmful (class 2) to the pupae and harmful (class 4) to the adults of the parasitoid. Similarly, increasing the application rate of spinosad and chlorfenapyr also exhibited an increase in toxicity. Spinosad at a rate of 24 g a.i. ha-1 was classified as slightly harmful (class 2) and harmless (class 1) to the pupae and adults of T. pretiosum, respectively. Spinosad at 96 g a.i. ha-1 was classified as both moderately harmful (class 3) and harmful (class 4) to the pupae of the parasitoid. Chlorfenapyr at a rate of 192 g a.i. ha-1 was classified as both slightly harmful (class 2) and moderately harmful (class 3) to the pupae of T. pretiosum, whereas chlorfenapyr at 336 g a.i. ha-1 was categorized as slightly harmful (class 3) and harmful (class 4) to the pupae. These results indicate that an increase in the rate of insecticide affected T. pretiosum negatively. Therefore, higher insecticide rates should only be adopted when strictly necessary to control the target pest, because they might compromise the biological pest control process in the field. |
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Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)Efeito do aumento de dose de inseticidas sobre sua seletividade para Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)Biological controlChemical controlIPMParasitoid.Controle biológicoControle químicoMIPParasitoide.The present study evaluated the effect of different rates of chlorantraniliprole, chlorantraniliprole + lambda-cyhalothrin, spinosad, and chlorfenapyr on their selectivity for the pupae and adults of Trichogramma pretiosum. The negative effect of majority of the insecticides tested on most of the parasitoids was directly proportional to the rate of the insecticide applied. Chlorantraniliprole at a rate of 10 g a.i. ha-1 was classified as harmless (class 1) to both pupae and adults of the parasitoid. The effect of chlorantraniliprole at a rate of 20 to 50 g a.i. ha-1 varied from harmless (class 1) to slightly harmful (class 2) to the adults of T. pretiosum. Chlorantraniliprole 10 + lambda-cyhalothrin at 5 g a.i. ha-1 was classified as harmless (class 1) to the pupae and moderately harmful (class 3) to the adults of T. pretiosum. On the contrary, the highest rate of chlorantraniliprole 50 + lambda-cyhalothrin tested (i.e., 25 g a.i. ha-1) was classified as slightly harmful (class 2) to the pupae and harmful (class 4) to the adults of the parasitoid. Similarly, increasing the application rate of spinosad and chlorfenapyr also exhibited an increase in toxicity. Spinosad at a rate of 24 g a.i. ha-1 was classified as slightly harmful (class 2) and harmless (class 1) to the pupae and adults of T. pretiosum, respectively. Spinosad at 96 g a.i. ha-1 was classified as both moderately harmful (class 3) and harmful (class 4) to the pupae of the parasitoid. Chlorfenapyr at a rate of 192 g a.i. ha-1 was classified as both slightly harmful (class 2) and moderately harmful (class 3) to the pupae of T. pretiosum, whereas chlorfenapyr at 336 g a.i. ha-1 was categorized as slightly harmful (class 3) and harmful (class 4) to the pupae. These results indicate that an increase in the rate of insecticide affected T. pretiosum negatively. Therefore, higher insecticide rates should only be adopted when strictly necessary to control the target pest, because they might compromise the biological pest control process in the field.O presente estudo avaliou o efeito de diferentes taxas de clorantraniliprole, clorantraniliprole + lambda-cialotrina, espinosade, e clorfenapir na seletividade para as pupas e adultos de Trichogramma pretiosum. O efeito negativo da maioria dos inseticidas testados nos parasitoides foi diretamente proporcional à dose do inseticida aplicado. O clorantraniliprole na dose de 10 g a.i. ha-1 foi classificado como seletivo (classe 1) para pupas e adultos do parasitoide. O efeito do clorantraniliprole na dose de 20 a 50 g a.i. ha-1 variou de seletivo (classe 1) a levemente prejudicial (classe 2) aos adultos de T. pretiosum. Clorantraniliprole 10 + lambda-cialotrina a 5 g a.i. ha-1 foi classificado como seletivo (classe 1) para as pupas e moderadamente prejudicial (classe 3) aos adultos de T. pretiosum. Ao contrário, a dose mais alta de clorantraniliprole 50 + lambda-cialotrina testada (isto é, 25 g a.i. ha-1) foi classificada como moderadamente prejudicial (classe 3) para as pupas e nociva (classe 4) para os adultos do parasitoide. Da mesma forma, o aumento da taxa de aplicação de espinosade e clorfenapir também apresentou aumento na toxicidade. O spinosade na dose de 24 g a.i. ha-1 foi classificado como levemente prejudicial (classe 2) e seletivo (classe 1) às pupas e adultos de T. pretiosum, respectivamente. Espinosade 96 g a.i. ha-1 foi classificado como moderadamente prejudicial (classe 3) e nocivas (classe 4) para as pupas do parasitoide. Clorofenapir 192 g a.i. ha-1 foi classificado como levemente prejudicial (classe 2) e moderadamente prejudicial (classe 3) às pupas de T. pretiosum, enquanto o clorfenapir a 336 g a.i. ha-1 foi categorizado como moderadamente prejudicial (classe 3) e nociva (classe 4) às pupas. Estes resultados indicam que um aumento na dose de inseticida afetou negativamente o T. pretiosum. Portanto, doses mais altas de inseticidas só devem ser usadas quando estritamente necessários para controlar a praga alvo, pois podem comprometer o controle biológico natural de pragas no campo.UEL2018-05-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2865610.5433/1679-0359.2018v39n3p933Semina: Ciências Agrárias; Vol. 39 No. 3 (2018); 933-946Semina: Ciências Agrárias; v. 39 n. 3 (2018); 933-9461679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28656/23491Copyright (c) 2018 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessGrande, Marcela Laiz MoraBraz, Érica CarolineBueno, Adeney de FreitasSilva, Débora Mello daQueiroz, Ana Paula deVentura, Maurício Ursi2022-10-20T20:28:47Zoai:ojs.pkp.sfu.ca:article/28656Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-20T20:28:47Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) Efeito do aumento de dose de inseticidas sobre sua seletividade para Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) |
title |
Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) |
spellingShingle |
Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) Grande, Marcela Laiz Mora Biological control Chemical control IPM Parasitoid. Controle biológico Controle químico MIP Parasitoide. |
title_short |
Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) |
title_full |
Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) |
title_fullStr |
Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) |
title_full_unstemmed |
Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) |
title_sort |
Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) |
author |
Grande, Marcela Laiz Mora |
author_facet |
Grande, Marcela Laiz Mora Braz, Érica Caroline Bueno, Adeney de Freitas Silva, Débora Mello da Queiroz, Ana Paula de Ventura, Maurício Ursi |
author_role |
author |
author2 |
Braz, Érica Caroline Bueno, Adeney de Freitas Silva, Débora Mello da Queiroz, Ana Paula de Ventura, Maurício Ursi |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Grande, Marcela Laiz Mora Braz, Érica Caroline Bueno, Adeney de Freitas Silva, Débora Mello da Queiroz, Ana Paula de Ventura, Maurício Ursi |
dc.subject.por.fl_str_mv |
Biological control Chemical control IPM Parasitoid. Controle biológico Controle químico MIP Parasitoide. |
topic |
Biological control Chemical control IPM Parasitoid. Controle biológico Controle químico MIP Parasitoide. |
description |
The present study evaluated the effect of different rates of chlorantraniliprole, chlorantraniliprole + lambda-cyhalothrin, spinosad, and chlorfenapyr on their selectivity for the pupae and adults of Trichogramma pretiosum. The negative effect of majority of the insecticides tested on most of the parasitoids was directly proportional to the rate of the insecticide applied. Chlorantraniliprole at a rate of 10 g a.i. ha-1 was classified as harmless (class 1) to both pupae and adults of the parasitoid. The effect of chlorantraniliprole at a rate of 20 to 50 g a.i. ha-1 varied from harmless (class 1) to slightly harmful (class 2) to the adults of T. pretiosum. Chlorantraniliprole 10 + lambda-cyhalothrin at 5 g a.i. ha-1 was classified as harmless (class 1) to the pupae and moderately harmful (class 3) to the adults of T. pretiosum. On the contrary, the highest rate of chlorantraniliprole 50 + lambda-cyhalothrin tested (i.e., 25 g a.i. ha-1) was classified as slightly harmful (class 2) to the pupae and harmful (class 4) to the adults of the parasitoid. Similarly, increasing the application rate of spinosad and chlorfenapyr also exhibited an increase in toxicity. Spinosad at a rate of 24 g a.i. ha-1 was classified as slightly harmful (class 2) and harmless (class 1) to the pupae and adults of T. pretiosum, respectively. Spinosad at 96 g a.i. ha-1 was classified as both moderately harmful (class 3) and harmful (class 4) to the pupae of the parasitoid. Chlorfenapyr at a rate of 192 g a.i. ha-1 was classified as both slightly harmful (class 2) and moderately harmful (class 3) to the pupae of T. pretiosum, whereas chlorfenapyr at 336 g a.i. ha-1 was categorized as slightly harmful (class 3) and harmful (class 4) to the pupae. These results indicate that an increase in the rate of insecticide affected T. pretiosum negatively. Therefore, higher insecticide rates should only be adopted when strictly necessary to control the target pest, because they might compromise the biological pest control process in the field. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28656 10.5433/1679-0359.2018v39n3p933 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28656 |
identifier_str_mv |
10.5433/1679-0359.2018v39n3p933 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28656/23491 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 39 No. 3 (2018); 933-946 Semina: Ciências Agrárias; v. 39 n. 3 (2018); 933-946 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306077627482112 |