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Barros SKA, de Almeida EG, Ferreira FTR, Barreto MR, Lopes RB, Pitta RM. Field Efficacy of Metarhizium rileyi Applications Against Spodoptera frugiperda (Lepidoptera: Noctuidae) in Maize. NEOTROPICAL ENTOMOLOGY 2021; 50:976-988. [PMID: 34590294 DOI: 10.1007/s13744-021-00903-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
The efficacy of the fungus Metarhizium rileyi (Farlow) Kepler, S. A. Rehner & Humber (Hypocreales: Clavicipitaceae) against the fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) and the impact on the community of epigeans predators as well as the natural occurrence of native fungal strains were evaluated after sequential sprays in maize. In the first season, the infestation was lower than 0.2 larvae per plant throughout the three fungal sprays and no significant difference was observed in the number of infected larvae among treatments. In the second season, insect population reached an average of 0.8 larvae per plant between the second and third sprays and the number of larvae succumbed by M. rileyi was higher in fungal-treated plots in the following weeks. Molecular characterization of the collected isolates on mummified larvae revealed the introduction of a new isolate did not eliminate the native strain on the fungal-treated plots. In both seasons, the diversity and abundance of predator species in the plots were not affected by any of the treatments. We showed that applications of selected strains of M. rileyi early in the season have no significant impact on the occurrence of natural enemies in maize.
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Affiliation(s)
| | | | | | | | - Rogério Biaggioni Lopes
- Empresa Brasileira de Pesquisa Agropecuária (Embrapa Recursos Genéticos e Biotecnologia), Brasília, DF, Brazil
| | - Rafael Major Pitta
- Empresa Brasileira de Pesquisa Agropecuária (Embrapa Agrossilvipastoril), Sinop, MT, Brazil.
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Abstract
In this study, we assess the potential of ants as bioindicators of riparian ecological health in two river types (upland and lowland type) located in the Catalonian region. We proposed to understand to what extent do metrics based on ant responses provide useful information that cannot be presented by traditional biophysical assessments while attempting an approach to creating an ant-based multimetric index (ant-based MMI) of the riparian ecological health. A total of 22 ant species were identified, and 42 metrics related to ant foraging activity, species richness, and functional traits were evaluated as potential core metrics of the index. Riparian features and proximal land use land cover (LULC) were used to distinguish disturbed from less disturbed sites. We found that ant communities strongly responded to human disturbance. When compared with an exclusively physical-based index for the assessment of the riparian health, the ant-based MMI was more sensitive to human disturbance, by also reacting to the effects of the surrounding LULC pressure. This study provides a preliminary approach for an ant-based assessment tool to evaluate the health of riparian corridors although additional research is required to include other river types and a wider stressor gradient before a wider application.
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Pereira JL, Galdino TVS, Silva GAR, Picanço MC, Silva AA, Corrêa AS, Martins JC. Effects of glyphosate on the non-target leaf beetle Cerotoma arcuata (Coleoptera: Chrysomelidae) in field and laboratory conditions. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2018; 53:447-453. [PMID: 29624468 DOI: 10.1080/03601234.2018.1455363] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study aimed to assess the glyphosate application effects on the Cerotoma arcuata Oliver (Coleoptera: Chrysomelidae) population in glyphosate-resistant soybean crops. Field studies were conducted with glyphosate and the insecticide endosulfan to observe the effects of these pesticides on C. arcuata, on its damages in the crop and on the populations of natural enemies in glyphosate-resistant soybean crops. Moreover, the lethal and behavioral sublethal response of C. arcuata to glyphosate and endosulfan was conducted in the laboratory. The results of the field and laboratory experiments showed that glyphosate caused moderate toxicity and high irritability in C. arcuata and that endosulfan caused high toxicity and irritability. Therefore, the direct effect of glyphosate on C. arcuata was negative and does not explain the population increases of this pest in glyphosate-resistant soybean. However, the glyphosate also decreased the density of predators. Thus, the negative effect of glyphosate on the predators may be related to population increases of C. arcuata in glyphosate-resistant soybean crops, however, more studies are needed to better evidence this relationship. This study suggests that glyphosate can impact other non-target organisms, such as herbivorous insects and natural enemies and that the use of this herbicide will need to be carefully stewarded to prevent potential disturbances in beneficial insect communities in agricultural systems.
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Affiliation(s)
- Jardel L Pereira
- a UniversidadeLuterana do Brasil (ULBRA) , Itumbiara , Goiás , Brazil
| | - Tarcísio V S Galdino
- b Departamento de Fitotecnia , Universidade Federal de Viçosa , Viçosa , Minas Gerais , Brazil
| | - Geverson A R Silva
- c Departamento de Entomologia , Universidade Federal de Viçosa , Viçosa , Minas Gerais , Brazil
| | - Marcelo C Picanço
- b Departamento de Fitotecnia , Universidade Federal de Viçosa , Viçosa , Minas Gerais , Brazil
- c Departamento de Entomologia , Universidade Federal de Viçosa , Viçosa , Minas Gerais , Brazil
| | - Antônio A Silva
- b Departamento de Fitotecnia , Universidade Federal de Viçosa , Viçosa , Minas Gerais , Brazil
| | - Alberto S Corrêa
- d Departamento de Entomologia e Acarologia , Universidade de São Paulo , Piracicaba , São Paulo , Brazil
| | - Júlio C Martins
- e Instituto Federal de Educação, Ciência e Tecnologia Baiano , Teixeira de Freitas , Bahia , Brazil
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Leite GLD, de Paulo PD, Zanuncio JC, Tavares WDS, Alvarenga AC, Dourado LR, Bispo EPR, Soares MA. Herbicide toxicity, selectivity and hormesis of nicosulfuron on 10 Trichogrammatidae (Hymenoptera) species parasitizing Anagasta ( = Ephestia) kuehniella (Lepidoptera: Pyralidae) eggs. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:70-76. [PMID: 27726483 DOI: 10.1080/03601234.2016.1229476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Selective agrochemicals including herbicides that do not affect non-target organisms such as natural enemies are important in the integrated pest management (IPM) programs. The aim of this study was to evaluate the herbicide toxicity, selectivity and hormesis of nicosulfuron, recommended for the corn Zea mays L. (Poaceae) crop, on 10 Trichogrammatidae (Hymenoptera) species. A female of each Trichogramma spp. or Trichogrammatoidea annulata De Santis, 1972 was individually placed in plastic test tubes (no choice) with a cardboard containing 45 flour moth Anagasta ( = Ephestia) kuehniella Zeller, 1879 (Lepidoptera: Pyralidae) eggs. Parasitism by these natural enemies was allowed for 48 h and the cardboards were sprayed with the herbicide nicosulfuron at 1.50 L.ha-1, along with the control (only distilled water). Nicosulfuron reduced the emergence rate of Trichogramma bruni Nagaraja, 1983 females, but increased that of Trichogramma pretiosum Riley, 1879, Trichogramma acacioi Brun, Moraes and Smith, 1984 and T. annulata females. Conversely, this herbicide increased the emergence rate of Trichogramma brasiliensis Ashmead, 1904, T. bruni, Trichogramma galloi Zucchi, 1988 and Trichogramma soaresi Nagaraja, 1983 males and decreased those of T. acacioi, Trichogramma atopovilia Oatman and Platner, 1983 and T. pretiosum males. In addition, nicosulfuron reduced the sex ratio of T. galloi, Trichogramma bennetti Nagaraja and Nagarkatti, 1973 and T. pretiosum and increased that of T. acacioi, T. bruni, T. annulata, Trichogramma demoraesi Nagaraja, 1983, T. soaresi and T. brasiliensis. The herbicide nicosulfuron was "harmless" (class 1, <30% reduction) for females and the sex ratio of all Trichogrammatidae species based on the International Organization for Biological Control (IOBC) classification. The possible hormesis effect of nicosulfuron on Trichogrammatidae species and on the bacterium Wolbachia sp. (Rickettsiales: Rickettsiaceae) was also discussed.
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Affiliation(s)
- Germano L D Leite
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - Paula D de Paulo
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - José C Zanuncio
- b Departamento de Entomologia/BIOAGRO , Universidade Federal de Viçosa , Viçosa , Minas Gerais State , Brazil
| | - Wagner De S Tavares
- c Departamento de Fitotecnia , Universidade Federal de Viçosa , Viçosa , Minas Gerais State , Brazil
| | - Anarelly C Alvarenga
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - Luan R Dourado
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - Edilson P R Bispo
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - Marcus A Soares
- d Departamento de Agronomia , Universidade Federal dos Vales do Jequitinhonha e Mucuri , Diamantina , Minas Gerais State , Brazil
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Santos MJG, Soares AMVM, Loureiro S. Joint effects of three plant protection products to the terrestrial isopod Porcellionides pruinosus and the collembolan Folsomia candida. CHEMOSPHERE 2010; 80:1021-30. [PMID: 20579688 DOI: 10.1016/j.chemosphere.2010.05.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Revised: 05/17/2010] [Accepted: 05/23/2010] [Indexed: 05/29/2023]
Abstract
The effects of simultaneous application of plant protection products are of concern since the uses of different products pose an additional risk to non-target soil organisms. The effects of binary combinations of dimethoate, glyphosate and spirodiclofen, an insecticide an herbicide and an acaricide, on the avoidance behaviour of the terrestrial isopod Porcellionides pruinosus and the reproductive effort of Folsomia candida were assessed using the two reference models of concentration addition (CA) and independent action (IA). Results of single exposure to the three pesticides indicated a clear dose related avoidance response of the isopods in the highest concentrations tested of the three as well as a strong decrease in collembolan adult survival and concomitant number of juveniles produced. In the combined experiments, antagonism was found in 7 out of the 12 combinations, four combinations followed the reference models, and only in one combination synergism was detected (lower doses of glyphosate and spirodiclofen applied to P. pruinosus). In conclusion, it seems that mixing and applying these products, at the recommended field application rate, does not lead to enhanced toxicity, hence limited risk is associated with the joint application of these pesticides.
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Affiliation(s)
- Miguel J G Santos
- Departamento de Biologia da Universidade de Aveiro and CESAM, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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Hirahara Y, Kimura M, Inoue T, Uchikawa S, Otani S, Haganuma A, Matsumoto N, Hirata A, Maruyama S, Iizuka T, Ukyo M, Ota M, Hirose H, Suzuki S, Uchida Y. Validation of Multiresidue Screening Methods for the Determination of 186 Pesticides in 11 Agricultural Products Using Gas Chromatography (GC). ACTA ACUST UNITED AC 2005. [DOI: 10.1248/jhs.51.617] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yoshichika Hirahara
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Mika Kimura
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Tomoko Inoue
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Seiji Uchikawa
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Shoji Otani
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Asami Haganuma
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Nobuyuki Matsumoto
- Yokohama Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Asumi Hirata
- Yokohama Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Shiho Maruyama
- Yokohama Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Tomomi Iizuka
- Yokohama Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Masaho Ukyo
- Yokohama Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Mitsue Ota
- Yokohama Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Hideaki Hirose
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Sosuke Suzuki
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
| | - Yukinori Uchida
- Kobe Quarantine Station, Center for Inspection of Imported Foods and Infectious Diseases
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