Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides
Control failure of pests and selectivity of insecticides to beneficial arthropods are key data for the implementation of Integrated Pest Management (IPM) programs. Therefore, the aim of this study was to assess the control failure likelihood of Plutella xylostella and the physiological selectivit...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Polish Academy of Sciences
2018-06-01
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| Series: | Journal of Plant Protection Research |
| Subjects: | |
| Online Access: | https://doi.org/10.24425/122931 |
| _version_ | 1818971334248497152 |
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| author | Leandro Bacci Jander Fagundes Rosado Marcelo Coutinho Picanço Alfredo Henrique Rocha Gonring Tarcísio Visintin da Silva Galdino Júlio Cláudio Martins |
| author_facet | Leandro Bacci Jander Fagundes Rosado Marcelo Coutinho Picanço Alfredo Henrique Rocha Gonring Tarcísio Visintin da Silva Galdino Júlio Cláudio Martins |
| author_sort | Leandro Bacci |
| collection | DOAJ |
| description | Control failure of pests and selectivity of insecticides to beneficial arthropods are key data
for the implementation of Integrated Pest Management (IPM) programs. Therefore, the aim
of this study was to assess the control failure likelihood of Plutella xylostella and the physiological
selectivity active ingredients to parasitoid Oomyzus sokolowskii (Hymenoptera:
Eulophidae) and to predators Polybia scutellaris (Hymenoptera: Vespidae) and Lasiochilus
sp. (Hemiptera: Anthocoridae). In bioassays, P. xylostella larvae and O. sokolowskii,
P. scutellaris and Lasiochilus sp. adults were used. Concentration-mortality curves of six
insecticides for P. xylostella were established. These curves were used to estimate the mortality
of P. xylostella at the recommended concentration, in order to check a control failure
of insecticides to this pest. Furthermore, the lethal concentration for 90% of populations
(LC90) and the half of LC90 were used in bioassays with the natural enemies to determine
the selectivity of these insects to insecticides. All tested insecticides showed control failure
to P. xylostella, indicated by high LC90 and low estimated mortalities (less than 80%). The
cartap insecticide was selective in half of LC90 to Lasiochilus sp. and moderately selective in
LC90 and the half of LC90, to Lasiochilus sp. and P. scutellaris, respectively. Deltamethrin was
moderately selective in the half of LC90 to predator Lasiochilus sp. Cartap, carbaryl, and deltamethrin
reduced the mortality of Lasiochilus sp. in the half LC90. The results also showed
that the insecticides methamidophos, carbaryl, parathion methyl and permethrin were not
selective to any of the tested natural enemies. The role of insecticides in IPM systems of
Brassica crops is discussed based on their control failures to P. xylostella and selectivity to
their natural enemies. |
| first_indexed | 2024-12-20T14:50:43Z |
| format | Article |
| id | doaj.art-f0e9690e833b4b55bad155cea45450a3 |
| institution | Directory Open Access Journal |
| issn | 1899-007X 1899-007X |
| language | English |
| last_indexed | 2024-12-20T14:50:43Z |
| publishDate | 2018-06-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Journal of Plant Protection Research |
| spelling | doaj.art-f0e9690e833b4b55bad155cea45450a32022-12-21T19:36:57ZengPolish Academy of SciencesJournal of Plant Protection Research1899-007X1899-007X2018-06-0158216116710.24425/122931Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticidesLeandro Bacci0Jander Fagundes Rosado1Marcelo Coutinho Picanço2Alfredo Henrique Rocha Gonring3Tarcísio Visintin da Silva Galdino4Júlio Cláudio Martins5Department of Agronomy, Federal University of Sergipe, 49100-000, Sergipe, BrazilDepartment of Entomology, Federal University of Viçosa, 36570-900, Viçosa, BrazilDepartment of Entomology, Federal University of Viçosa, 36570-900, Viçosa, BrazilTechnology Center of Paulínia, DuPont of Brazil S.A., 13140-000, Paulinia, BrazilDepartment of Entomology, Federal University of Viçosa, 36570-900, Viçosa, BrazilDepartment of Agriculture, Federal Institute of Education, Science and Technology Baiano, 45.985-970, BrazilControl failure of pests and selectivity of insecticides to beneficial arthropods are key data for the implementation of Integrated Pest Management (IPM) programs. Therefore, the aim of this study was to assess the control failure likelihood of Plutella xylostella and the physiological selectivity active ingredients to parasitoid Oomyzus sokolowskii (Hymenoptera: Eulophidae) and to predators Polybia scutellaris (Hymenoptera: Vespidae) and Lasiochilus sp. (Hemiptera: Anthocoridae). In bioassays, P. xylostella larvae and O. sokolowskii, P. scutellaris and Lasiochilus sp. adults were used. Concentration-mortality curves of six insecticides for P. xylostella were established. These curves were used to estimate the mortality of P. xylostella at the recommended concentration, in order to check a control failure of insecticides to this pest. Furthermore, the lethal concentration for 90% of populations (LC90) and the half of LC90 were used in bioassays with the natural enemies to determine the selectivity of these insects to insecticides. All tested insecticides showed control failure to P. xylostella, indicated by high LC90 and low estimated mortalities (less than 80%). The cartap insecticide was selective in half of LC90 to Lasiochilus sp. and moderately selective in LC90 and the half of LC90, to Lasiochilus sp. and P. scutellaris, respectively. Deltamethrin was moderately selective in the half of LC90 to predator Lasiochilus sp. Cartap, carbaryl, and deltamethrin reduced the mortality of Lasiochilus sp. in the half LC90. The results also showed that the insecticides methamidophos, carbaryl, parathion methyl and permethrin were not selective to any of the tested natural enemies. The role of insecticides in IPM systems of Brassica crops is discussed based on their control failures to P. xylostella and selectivity to their natural enemies.https://doi.org/10.24425/122931Brassica cropsdiamondback mothinsecticide selectivitynatural enemiesbiological control |
| spellingShingle | Leandro Bacci Jander Fagundes Rosado Marcelo Coutinho Picanço Alfredo Henrique Rocha Gonring Tarcísio Visintin da Silva Galdino Júlio Cláudio Martins Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides Journal of Plant Protection Research Brassica crops diamondback moth insecticide selectivity natural enemies biological control |
| title | Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides |
| title_full | Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides |
| title_fullStr | Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides |
| title_full_unstemmed | Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides |
| title_short | Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides |
| title_sort | failure control of plutella xylostella lepidoptera plutellidae and selectivity of their natural enemies to different insecticides |
| topic | Brassica crops diamondback moth insecticide selectivity natural enemies biological control |
| url | https://doi.org/10.24425/122931 |
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