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Lin J, Yue G, Xiao K, Yang D, Hao X, Zheng M, Cai P, Ji Q. Effects of low-concentration spinetoram wax-based bait stations on Bactrocera dorsalis (Diptera: Tephritidae). Pestic Biochem Physiol 2023; 197:105705. [PMID: 38072558 DOI: 10.1016/j.pestbp.2023.105705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023]
Abstract
Spinetoram wax-based bait station (SWBB) is a maintenance-free, long-lasting, and eco-friendly management measure for Bactrocera dorsalis. However, the impacts of low-concentration spinetoram on B. dorsalis have not yet been determined. Therefore, our study aimed to determine the impacts of low-concentration SWBBs on the biology, demographics, detoxifying enzymes, and gut microorganisms of B. dorsalis. Our results showed that low-concentration SWBBs posed dose-dependent effects on the lifespan and fecundity of B. dorsalis adults. Both the LC10 and LC30 treatments significantly reduced the fecundity, while only the latter led to significant deleterious effects on the longevity of adults. Transgenerational bioassays revealed that exposure to LC30 significantly affected the development period of larvae and pupae as well as the livability of pre-adult stage of the progeny. However, except for the ovipositional period, no significant effects on the biological traits of F1 adults were observed. In terms of the F1 demographic parameters, dose-dependent effects were observed. Moreover, both the LC10 and LC30 treatments significantly extended the mean generation time, while the latter remarkably decreased the finite and intrinsic rates. Additionally, the significant induction of CarE activity by the LC10 and LC30 treatment was maintained until 24 and 48 h respectively. The CYP450 O-deethylation activity in the LC30 treatment was significantly enhanced at 24 and 48 h intervals when compared to the control. Regarding the intestinal bacterial community, after B. dorsalis adults were exposed to low-concentration SWBBs, the relative abundances of Providencia and Vagococcus were significantly increased, whereas those of Lactococcus and Brachyspira experienced a significant decrease. The obtained results are expected to serve as a foundation for the application of spinetoram in "lure-and-kill" strategies against B. dorsalis.
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Affiliation(s)
- Jia Lin
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Guoqing Yue
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Kang Xiao
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Deqing Yang
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Xuxing Hao
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Minlin Zheng
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China
| | - Pumo Cai
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China; Department of Horticulture, College of Tea and Food Science, Wuyi University, Wuyishan 354300, China.
| | - Qing'e Ji
- Institute of Biological control, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fuzhou 350002, China; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fuzhou 350002, China.
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Regalado L, Sario S, Mendes RJ, Valle J, Harvey PJ, Teixeira C, Gomes P, Andreu D, Santos C. Towards a Sustainable Management of the Spotted-Wing Drosophila: Disclosing the Effects of Two Spider Venom Peptides on Drosophila suzukii. Insects 2023; 14:533. [PMID: 37367349 DOI: 10.3390/insects14060533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023]
Abstract
The spotted-wing drosophila (Drosophila suzukii) is a polyphagous pest that causes severe damage and economic losses to soft-skinned fruit production. Current control methods are dominated by inefficient cultural practices and broad-spectrum insecticides that, in addition to having toxic effects on non-target organisms, are becoming less effective due to acquired resistance. The increasing awareness of the real impact of insecticides on health and the environment has promoted the exploration of new insecticidal compounds, addressing novel molecular targets. This study explores the efficacy of two orally delivered spider venom peptides (SVPs), J-atracotoxin-Hv1c (Hv1c) and µ-theraphotoxin-Hhn2b (TRTX), to manage D. suzukii, through survival assays and the evaluation of gene expression associated with detoxification pathways. Treatment with TRTX at 111.5 µM for 48 h enhanced fly longevity compared with the control group. Gene expression analysis suggests that detoxification and stress-related mechanisms, such as expression of P450 proteins and apoptotic stimuli signaling, are triggered in D. suzukii flies in response to these treatments. Our results highlight the potential interest of SVPs to control this pest, shedding light on how to ultimately develop improved target-specific formulations.
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Affiliation(s)
- Laura Regalado
- iB2, Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- LAQV-REQUIMTE, Faculty of Sciences, University of Porto, 4050-453 Porto, Portugal
| | - Sara Sario
- iB2, Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- LAQV-REQUIMTE, Faculty of Sciences, University of Porto, 4050-453 Porto, Portugal
| | - Rafael J Mendes
- iB2, Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- LAQV-REQUIMTE, Faculty of Sciences, University of Porto, 4050-453 Porto, Portugal
| | - Javier Valle
- Proteomics and Protein Chemistry Unit, Department of Medicine and Life Sciences, Pompeu Fabra University, 08002 Barcelona, Spain
| | - Peta J Harvey
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Cátia Teixeira
- LAQV-REQUIMTE, Faculty of Sciences, University of Porto, 4050-453 Porto, Portugal
| | - Paula Gomes
- LAQV-REQUIMTE, Faculty of Sciences, University of Porto, 4050-453 Porto, Portugal
| | - David Andreu
- Proteomics and Protein Chemistry Unit, Department of Medicine and Life Sciences, Pompeu Fabra University, 08002 Barcelona, Spain
| | - Conceição Santos
- iB2, Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- LAQV-REQUIMTE, Faculty of Sciences, University of Porto, 4050-453 Porto, Portugal
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Mermer S, Rossi Stacconi MV, Tait G, Pfab F, Sial AA, Disi JO, Burrack HJ, Toennisson A, Xue L, Zhang C, Walton VM. Comparing the effectiveness of different insecticide application orders for suppressing Drosophila suzukii Matsumura (Diptera: Drosophilidae) infestation: experimental and modeling approaches. J Econ Entomol 2023:7156966. [PMID: 37155341 DOI: 10.1093/jee/toad057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 03/07/2023] [Accepted: 03/17/2023] [Indexed: 05/10/2023]
Abstract
Drosophila suzukii Matsumura (Diptera: Drosophilidae) is a key pest of soft-skinned fruit such as blackberry and blueberry. Differing seasonal spray regimes are expected to have variable effects on D. suzukii populations. Semi-field cage trials were performed at three locations in the United States (Georgia, Oregon, and North Carolina) on blueberry and blackberry crops to evaluate this hypothesis. Insecticides with different efficacy rates (ZC - zeta-cypermethrin, SPI - spinetoram, CYAN - cyantraniliprole) were applied during field experiments conducted within large cages. Treatment schedules consisted of two insecticide applications which performed over three weeks. Seasonal treatment schedules were applied in the following order: ZC-CYAN and CYAN-ZC in rabbiteye and highbush blueberry with the addition of a ZC-SPI treatment applied in blackberry. In addition, a population model was applied to simulate the relative efficacy of the insecticide schedules in Oregon on D. suzukii population model based on previously published efficacy, biological, and weather parameters. Overall, all schedules resulted in reduced D. suzukii infestation compared to untreated control (UTC) treatments, with statistical differences in all three locations. The numerically lower infestation was found in some cases in ZC-CYAN schedule. Population modeling conducted exclusively for blueberry, and the simulations indicated no discernible differences between the two respective schedules (ZC-CYAN vs CYAN-ZC). The present study demonstrates that seasonal infestation of D. suzukii could be suppressed irrespective of application order. Additional research is required to assess the optimal timing and sequence of insecticide applications for controlling seasonal populations of D. suzukii in fruit crops. Such information could be invaluable for growers who are seeking to strategize their insecticide applications.
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Affiliation(s)
- Serhan Mermer
- Department of Horticulture, Oregon State University, Corvallis, OR 97331, USA
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Marco Valerio Rossi Stacconi
- Department of Horticulture, Oregon State University, Corvallis, OR 97331, USA
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Gabriella Tait
- Department of Horticulture, Oregon State University, Corvallis, OR 97331, USA
| | - Ferdinand Pfab
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA 93117, USA
| | - Ashfaq A Sial
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
| | - Joseph O Disi
- Department of Entomology, University of Georgia, Athens, GA 30602, USA
| | - Hannah J Burrack
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27607, USA
- Department of Entomology Michigan State University, East Lansing, MI 48823, USA
| | - Aurora Toennisson
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27607, USA
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC 27607, USA
| | - Lan Xue
- Department of Statistics, Oregon State University, Corvallis, OR 97331, USA
| | - Chengzhu Zhang
- Department of Statistics, Oregon State University, Corvallis, OR 97331, USA
| | - Vaughn M Walton
- Department of Horticulture, Oregon State University, Corvallis, OR 97331, USA
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Tait G, Zhu T, Klick J, Ganjisaffar F, Castillo C, Kennedy R, Thomas H, Adams C, Pfab F, Mermer S, Mirandola E, Xue L, Zalom FG, Seagraves M, Walton VM. Open field trials of food-grade gum in California and Oregon as a behavioral control for Drosophila suzukii Matsumura (Diptera: Drosophilidae). Front Insect Sci 2023; 3:1141853. [PMID: 38469503 PMCID: PMC10926501 DOI: 10.3389/finsc.2023.1141853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/20/2023] [Indexed: 03/13/2024]
Abstract
The invasion of Drosophila suzukii, spotted-wing drosophila, across Europe and the US has led to economic losses for berry and cherry growers, and increased insecticide applications to protect fruit from damage. Commercial production relies heavily on unsustainable use of conventional toxic insecticides. Non-toxic insecticide strategies are necessary to alleviate the disadvantages and non-target impacts of toxic conventional insecticides and improve Integrated Pest Management (IPM). A novel food-grade gum deployed on dispenser pads (GUM dispensers) was evaluated to mitigate D. suzukii crop damage in five commercial crops and nine locations. Trials were conducted at a rate of 124 dispensers per hectare in cherry, wine grape, blueberry, raspberry, and blackberry in California and Oregon, USA during 2019 and 2020. The majority of trials with the food-grade gum resulted in a reduction of D. suzukii egg laying in susceptible fruit. In some cases, such damage was reduced by up to 78%. Overall, results from our meta-analysis showed highly significant differences between GUM treatments and the untreated control. Modeling simulations suggest a synergistic reduction of D. suzukii damage when used in combination with Spinosad (Entrust SC) insecticide. These data illustrate commercial value of this tool as a sustainable alternative to manage D. suzukii populations within a systems approach.
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Affiliation(s)
- Gabriella Tait
- Department of Horticulture, Oregon State University, Corvallis, OR, United States
| | - Tingyu Zhu
- Department of Statistics, Oregon State University, Corvallis, OR, United States
| | - Jimmy Klick
- Driscoll’s Inc., Watsonville, CA, United States
| | - Fatemeh Ganjisaffar
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, United States
| | | | | | - Hillary Thomas
- Naturipe Berry Growers, Inc., Salinas, CA, United States
| | - Christopher Adams
- Department of Horticulture, Mid-Columbia Agricultural Research and Extension Center, Hood River, OR, United States
| | - Ferdinand Pfab
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, United States
| | - Serhan Mermer
- Department of Horticulture, Oregon State University, Corvallis, OR, United States
| | - Enrico Mirandola
- Department of Agronomy, Food, Natural Resources, Animals, and the Environment (DAFNAE), Padova University, Padua, Italy
| | - Lan Xue
- Department of Statistics, Oregon State University, Corvallis, OR, United States
| | - Frank G. Zalom
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, United States
| | | | - Vaughn M. Walton
- Department of Horticulture, Oregon State University, Corvallis, OR, United States
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Chen YX, Tian HJ, Lin S, Yu Y, Xie LC, Li H, Chen Y, Lin T, Gu XJ, Wei H. Sublethal effects of emamectin benzoate on development, reproduction, and vitellogenin and vitellogenin receptor gene expression in Thrips hawaiiensis (Thysanoptera: Thripidae). J Insect Sci 2023; 23:7192901. [PMID: 37294686 DOI: 10.1093/jisesa/iead035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/14/2023] [Accepted: 05/20/2023] [Indexed: 06/11/2023]
Abstract
Thrips hawaiiensis (Morgan) (Thysanoptera: Thripidae) is a sap-sucking pest that seriously damages several crops and reduces their economic value. Exposure to low concentrations of insecticides may have a sublethal effect on surviving insects. In order to provide a reference for the rational application of emamectin benzoate, its sublethal effects on the development and reproduction of T. hawaiiensis were evaluated. Pupal development time was significantly shorter in T. hawaiiensis treated with sublethal concentrations of emamectin benzoate (LC10 and LC20) than in control. Female adult longevity and female total longevity were significantly longer following LC20 treatment than in the control and LC10 treatment groups. Nevertheless, male adult longevity and male total longevity were significantly shorter in the LC10 treatment group than in the control and LC20 treatment groups. The sublethal concentration of emamectin benzoate (LC20) significantly shortened the preadult stages and the mean generation. Meanwhile, it significantly increased the finite rate of increase, intrinsic rate of increase, and net reproductive rate. The fecundity was significantly higher after LC20 treatment than after LC10 and control treatments. Compared with the control group, the LC10 and LC20 groups of T. hawaiiensis adults showed a significantly higher expression of the vitellogenin (Vg) and vitellogenin receptor (VgR) genes, which played a key role in increasing their fecundity. These findings suggest that short-term exposure to sublethal concentrations of emamectin benzoate may lead to a resurgence and secondary outbreak of T. hawaiiensis infestation. The results have practical applications for the management of this important and noxious pest.
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Affiliation(s)
- Yi-Xin Chen
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Hou-Jun Tian
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Shuo Lin
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Yun Yu
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Lian-Cheng Xie
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Heng Li
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Yong Chen
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Tao Lin
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Xiao-Jun Gu
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hui Wei
- Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, East China Branch of the National Center For Agricultural Biosafety Sciences, Fujian Engineering Research Center for Green Pest Management, Fuzhou Scientific Observing and Experimental Station of Crop Pests of Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
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Garcia FRM, Lasa R, Funes CF, Buzzetti K. Drosophila suzukii Management in Latin America: Current Status and Perspectives. J Econ Entomol 2022; 115:1008-1023. [PMID: 35595171 DOI: 10.1093/jee/toac052] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Indexed: 05/17/2023]
Abstract
Spotted-wing drosophila, Drosophila suzukii Matsumura, was first established in Latin America in Mexico in 2011. The vinegar fly has since been detected in 296 municipalities in Argentina, Brazil, Chile, Mexico, and Uruguay. Drosophila suzukii is polyphagous and is found on 64 host plants in 25 families in Latin America, with most hosts also exotic species. In Latin America, D. suzukii is attacked by 14 species of parasitoid wasps in the families Diapriidae, Figitidae, and Pteromalidae, which are promising native parasitoids for control of the pest. This article analyzes results from studies on monitoring, biological, chemical, and cultural control, and sterile insect techniques to provide a basis for the development of area-wide and sustainable D. suzukii management programs in Latin America. The review examines how D. suzukii has been managed in Latin America and how research conducted in this region can contribute to management of the species in other parts of the world.
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Affiliation(s)
- Flávio Roberto Mello Garcia
- Universidade Federal de Pelotas, Instituto de Biologia, Departamento de Ecologia, Zoologia e Genética, 96010-900, Pelotas, RS, Brazil
| | - Rodrigo Lasa
- Instituto de Ecología AC, Red de Manejo Biorracional de Plagas y Vectores, 91073 Xalapa, Veracruz, Mexico
| | - Claudia F Funes
- INTA Estación Experimental Agropecuaria Famaillá, Ruta Provincial 301, Km 32, 4132 Famaillá, Tucumán, Argentina
| | - Karina Buzzetti
- Consultora AgriDevelopment Ltda, Napoleón 3565 of 202, 7550219, Las Condes, Chile
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Affiliation(s)
- Evgenios Agathokleous
- School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), Nanjing 210044, China.
| | - Michael N Moore
- European Centre for Environment & Human Health (ECEHH), University of Exeter Medical School, Knowledge Spa, Royal Cornwall Hospital, Truro, UK; Plymouth Marine Laboratory, Plymouth, Devon, UK; School of Biological & Marine Sciences, University of Plymouth, Plymouth, UK
| | - Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA 01003, USA
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Mermer S, Tait G, Pfab F, Mirandola E, Bozaric A, Thomas CD, Moeller M, Oppenheimer KG, Xue L, Wang L, Walton VM. Comparative Insecticide Application Techniques (Micro-Sprinkler) Against Drosophila suzukii Matsumura (Diptera: Drosophilidae) in Highbush Blueberry. Environ Entomol 2022; 51:413-420. [PMID: 35137017 DOI: 10.1093/ee/nvac002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Indexed: 06/14/2023]
Abstract
Drosophila suzukii (Matsumura), spotted-wing drosophila, is a major pest in small fruit crops including highbush blueberry. Controlling D. suzukii is challenging and chemical control is the main method to manage D. suzukii populations. Growers have expressed interest in using micro-sprinklers as an alternative method to apply insecticides. The current study aimed to evaluate if insecticide applications using micro-sprinklers can be used as an alternative method to protect the fruit from D. suzukii egg-laying. Modeling was used as an additional tool to parameterize the relative insecticide efficacy on oviposition. Field measurements of different treatments were conducted over periods of eleven days on commercial-standard highbush blueberry. Cyantraniliprole and spinetoram were applied using both a micro-sprinkler and a backpack sprayer. Treatments of Chromobacterium subtsugae and zeta-cypermethrin were only applied using a backpack sprayer. Both cyantraniliprole and spinetoram treatments resulted in moderate suppression of D. suzukii egg-laying. No statistical significance was found between micro-sprinkler and backpack sprayer applications for these two insecticides. Zeta-cypermethrin treatments using a backpack sprayer resulted in the most significant suppression of D. suzukii egg-laying over eleven days, while C. subtsugae was less effective at preventing D. suzukii egg-laying. Modeling simulations estimate the impact of the control methods on D. suzukii populations dynamics and simulation outputs indicated that backpack sprayers reduced D. suzukii populations at more pronounced levels compared to micro-sprinkler applications. The present study indicates that there is an underlying value of micro-sprinkler systems as an alternative and rapid spray application technique to help suppress D. suzukii pest populations during high-pressure periods in highbush blueberry production.
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Affiliation(s)
- Serhan Mermer
- Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR, 97331, USA
| | - Gabriella Tait
- Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR, 97331, USA
| | - Ferdinand Pfab
- University of California, Santa Barbara, Department of Ecology, Evolution and Marine Biology, Santa Barbara, CL, 93106, USA
| | - Enrico Mirandola
- Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR, 97331, USA
- University of Padova, Department of Agronomy, Food, Natural Resources, Animals and the Environment DAFNAE, Padova, Italy
| | - Aleksandar Bozaric
- Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR, 97331, USA
| | - Canessa D Thomas
- Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR, 97331, USA
| | - Maxwell Moeller
- Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR, 97331, USA
| | - Katherine G Oppenheimer
- Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR, 97331, USA
| | - Lan Xue
- Oregon State University, Department of Statistics, 257 Weniger Hall, Corvallis, OR, 97331, USA
| | - Lu Wang
- College of Veterinary Medicine, China Agriculture University, Bejing, 100193, China
| | - Vaughn M Walton
- Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR, 97331, USA
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Su S, Jian C, Zhang X, Fang S, Peng X, Piñero JC, Chen M. Sublethal Effects of Abamectin on the Development, Reproduction, Detoxification Enzyme Activity, and Related Gene Expression of the Oriental Fruit Moth (Lepidoptera: Tortricidae). J Econ Entomol 2021; 114:2430-2438. [PMID: 34672347 DOI: 10.1093/jee/toab196] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Indexed: 06/13/2023]
Abstract
Grapholita molesta is one of the most important fruit pests worldwide. Abamectin is a biological pesticide frequently used to control fruit borers like G. molesta in part owing to its translaminar properties. In this study, we characterized the toxicity of abamectin to G. molesta larvae using the diet incorporation method. The sublethal effects of abamectin on the development, reproduction, detoxification enzyme activity, and related gene expression of G. molesta were assessed. The results showed that the LC20 and LC50 values of the insecticide against G. molesta 72 h post-treatment were 1.17 mg L-1 and 5.85 mg L-1, whereas the LC20 and LC50 values 96 h post-treatment were 0.34 mg L-1 and 3.63 mg L-1. When compared to the control, sublethal concentrations of abamectin 1) significantly increased the mortality of the larvae, prepupae, and pupae of G. molesta, 2) prolonged the duration of 3rd to 5th instar larva, prepupal and pupal periods, 3) shortened the longevity of adults, and 4) reduced female fecundity. The enzymatic activity of glutathione S-transferase (GST) varied significantly after exposure to sublethal concentrations of abamectin, but the cytochrome P450 monooxygenases and carboxylesterase activity were not significantly affected. Thirteen of the 25 GST genes were significantly upregulated under different sublethal concentrations of abamectin. The combined findings increase our understanding of the effects of abamectin on G. molesta and the potential role of GSTs in the metabolic interactions of abamectin in this pest, and have applications for more rational and effective use of abamectin to control G. molesta.
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Affiliation(s)
- Sha Su
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Chengzhi Jian
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaohe Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Sensen Fang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiong Peng
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jaime C Piñero
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
| | - Maohua Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling 712100, Shaanxi, China
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