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Neta A, Levi Y, Morin E, Morin S. Seasonal forecasting of pest population dynamics based on downscaled SEAS5 forecasts. Ecol Modell 2023. [DOI: 10.1016/j.ecolmodel.2023.110326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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Naranjo SE, Cañas L, Ellsworth PC. Mortality dynamics of a polyphagous invasive herbivore reveal clues in its agroecosystem success. PEST MANAGEMENT SCIENCE 2022; 78:3988-4005. [PMID: 35645142 PMCID: PMC9544257 DOI: 10.1002/ps.7018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/02/2022] [Accepted: 05/29/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The population dynamics of polyphagous pests such as Bemisia argentifolii (B. tabaci MEAM1) are governed by complex, interacting factors involving its cultivated and wild host plants, seasonality, movement and demography. To understand mechanisms contributing to population development and pest success within the agroecosystem, contiguous multi-host field sites were established in three environmentally distinct areas in Arizona. Life tables quantified and partition models described mortality sources and rates for immature insect stages on each host plant. RESULTS Predation and dislodgement were the largest sources of marginal mortality, supplied the highest irreplaceable mortality and predation was the key factor. Rates of mortality were best predicted, in order, by source, temperature, host plant and season. Marginal mortality was highest for fourth-stage nymphs followed by eggs. Mortality rates were predicted in descending order by stage, temperature and season. Survivorship patterns varied among host plants, and generational mortality averaged 70% on spring cantaloupes but nearly 95% on all other hosts. Population density varied seasonally, persisting at low levels on winter hosts and expanding beginning in the spring; perennial hosts and weeds bridge populations year-round. CONCLUSION Survival on winter hosts such as broccoli, albeit low, enables population continuity, whereas unusually high survivorship on spring crops like cantaloupe is an ecological release propelling population growth and driving regional dynamics in the summer and fall. This detailed understanding of mortality dynamics provides clues to the success of this invasive pest in our agroecosystems and facilitates opportunities for improved pest management at a broader landscape scale. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.
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Affiliation(s)
| | - Luis Cañas
- Department of EntomologyUniversity of Arizona, Maricopa Agricultural CenterMaricopaAZUSA
- Present address:
Luis Cañas, Department of Entomology, Ohio State UniversityWoosterOHUSA
| | - Peter C. Ellsworth
- Department of EntomologyUniversity of Arizona, Maricopa Agricultural CenterMaricopaAZUSA
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Abram PK, Wang X, Hueppelsheuser T, Franklin MT, Daane KM, Lee JC, Lue CH, Girod P, Carrillo J, Wong WHL, Kula RR, Gates MW, Hogg BN, Moffat CE, Hoelmer KA, Sial AA, Buffington ML. A Coordinated Sampling and Identification Methodology for Larval Parasitoids of Spotted-Wing Drosophila. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:922-942. [PMID: 34984457 DOI: 10.1093/jee/toab237] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Indexed: 06/14/2023]
Abstract
We provide recommendations for sampling and identification of introduced larval parasitoids of spotted-wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae). These parasitoids are either under consideration for importation (aka classical) biological control introductions, or their adventive (presumed to have been accidentally introduced) populations have recently been discovered in North America and Europe. Within the context of the ecology of D. suzukii and its parasitoids, we discuss advantages and disadvantages of estimating larval parasitism levels using different methods, including naturally collected fruit samples and sentinel baits. For most situations, we recommend repeated sampling of naturally occurring fruit rather than using sentinel baits to monitor seasonal dynamics of host plant-Drosophila-parasitoid associations. We describe how to separate Drosophilidae puparia from host fruit material in order to accurately estimate parasitism levels and establish host-parasitoid associations. We provide instructions for identification of emerging parasitoids and include a key to the common families of parasitoids of D. suzukii. We anticipate that the guidelines for methodology and interpretation of results that we provide here will form the basis for a large, multi-research team sampling effort in the coming years to characterize the biological control and nontarget impacts of accidentally and intentionally introduced larval parasitoids of D. suzukii in several regions of the world.
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Affiliation(s)
- Paul K Abram
- Agriculture and Agri-Food Canada, Agassiz Research and Development Centre, Agassiz, BC, Canada
| | - Xingeng Wang
- USDA-ARS, Beneficial Insects Introduction Research Unit, Newark, DE, USA
| | - Tracy Hueppelsheuser
- British Columbia Ministry of Agriculture, Food and Fisheries, Abbotsford, BC, Canada
| | - Michelle T Franklin
- Agriculture and Agri-Food Canada, Agassiz Research and Development Centre, Agassiz, BC, Canada
| | - Kent M Daane
- Department of Environmental Science, Policy and Management, University of California Berkeley, Berkeley, CA, USA
| | - Jana C Lee
- USDA-ARS, Horticultural Crops Research Unit, Corvallis, OR, USA
| | - Chia-Hua Lue
- Department of Biology, Brooklyn College, City University of New York, Brooklyn, NY, USA
| | - Pierre Girod
- Faculty of Land and Food Systems, University of British Columbia, Centre for Sustainable Food Systems and the Biodiversity Research Centre, Unceded xʷməθkʷəy̓əm (Musqueam) Territory, Vancouver, BC, Canada
| | - Juli Carrillo
- Faculty of Land and Food Systems, University of British Columbia, Centre for Sustainable Food Systems and the Biodiversity Research Centre, Unceded xʷməθkʷəy̓əm (Musqueam) Territory, Vancouver, BC, Canada
| | - Warren H L Wong
- Faculty of Land and Food Systems, University of British Columbia, Centre for Sustainable Food Systems and the Biodiversity Research Centre, Unceded xʷməθkʷəy̓əm (Musqueam) Territory, Vancouver, BC, Canada
| | - Robert R Kula
- USDA-ARS, Systematic Entomology Laboratory, c/o National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
| | - Michael W Gates
- USDA-ARS, Systematic Entomology Laboratory, c/o National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
| | - Brian N Hogg
- USDA-ARS, Invasive Species and Pollinator Health Research Unit, Albany, CA, USA
| | - Chandra E Moffat
- Agriculture and Agri-Food Canada, Summerland Research and Development Centre, Summerland, BC, Canada
| | - Kim A Hoelmer
- USDA-ARS, Beneficial Insects Introduction Research Unit, Newark, DE, USA
| | - Ashfaq A Sial
- Department of Entomology, University of Georgia, Athens, GA, USA
| | - Matthew L Buffington
- USDA-ARS, Systematic Entomology Laboratory, c/o National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
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Cacho OJ, Hester SM. Modelling biocontrol of invasive insects: An application to European Wasp (Vespula germanica) in Australia. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.109939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bowers C, Toews MD, Schmidt JM. Winter cover crops shape early‐season predator communities and trophic interactions. Ecosphere 2021. [DOI: 10.1002/ecs2.3635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Carson Bowers
- Department of Entomology University of Georgia Tifton Georgia 31793 USA
| | - Michael D. Toews
- Department of Entomology University of Georgia Tifton Georgia 31793 USA
| | - Jason M. Schmidt
- Department of Entomology University of Georgia Tifton Georgia 31793 USA
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Decision support for pest management: Using field data for optimizing temperature-dependent population dynamics models. Ecol Modell 2021. [DOI: 10.1016/j.ecolmodel.2020.109402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Kheirodin A, Simmons AM, Legaspi JC, Grabarczyk EE, Toews MD, Roberts PM, Chong JH, Snyder WE, Schmidt JM. Can Generalist Predators Control Bemisia tabaci? INSECTS 2020; 11:insects11110823. [PMID: 33238485 PMCID: PMC7700500 DOI: 10.3390/insects11110823] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/13/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022]
Abstract
Simple Summary Whiteflies are major insect pests on a global scale. The use of insecticides is the primary tool for controlling them, but there are many problems relying on this strategy. However, natural enemies like predators and parasitic insects that attack whiteflies can help provide a sustainable pest management approach. This paper focuses on predators that feed on whiteflies as well as other insect pests and are called generalist predators. We provide a comprehensive view of generalist predator contributions and review the currently recognized generalist predators of whiteflies. There are many generalist predators in agricultural cropping systems that help control whiteflies. We highlight the need for conservation biological control programs through habitat management strategies and the use of selective insecticides, with an aim for more sustainable management of whiteflies in crops. Abstract The whitefly, Bemisia tabaci, has developed resistance to many insecticides, renewing interest in the biological control of this global pest. Generalist predators might contribute to whitefly suppression if they commonly occur in infested fields and generally complement rather than interfere with specialized natural enemies. Here, we review literature from the last 20 years, across US cropping systems, which considers the impacts of generalist predators on B. tabaci. Laboratory feeding trials and molecular gut content analysis suggest that at least 30 different generalist predator species willingly and/or regularly feed on these whiteflies. Nine of these predators appear to be particularly impactful, and a higher abundance of a few of these predator species has been shown to correlate with greater B. tabaci predation in the field. Predator species often occupy complementary feeding niches, which would be expected to strengthen biocontrol, although intraguild predation is also common and might be disruptive. Overall, our review suggests that a bio-diverse community of generalist predators commonly attacks B. tabaci, with the potential to exert substantial control in the field. The key challenge will be to develop reduced-spray plans so that generalist predators, and other more specialized natural enemies, are abundant enough that their biocontrol potential is realized.
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Affiliation(s)
- Arash Kheirodin
- Department of Entomology, University of Georgia, 2360 Rainwater Road, Tifton, GA 31793, USA; (A.K.); (M.D.T.); (P.M.R.)
| | - Alvin M. Simmons
- U.S. Vegetable Research, USDA-ARS, 2700 Savannah Highway, Charleston, SC 29414, USA;
| | - Jesusa C. Legaspi
- USDA-Insect Behavior and Biocontrol Research, Gainesville, FL 32608, USA;
| | - Erin E. Grabarczyk
- Southeast Watershed Research, USDA-ARS, 2316 Rainwater Road, Tifton, GA 31793, USA;
| | - Michael D. Toews
- Department of Entomology, University of Georgia, 2360 Rainwater Road, Tifton, GA 31793, USA; (A.K.); (M.D.T.); (P.M.R.)
| | - Phillip M. Roberts
- Department of Entomology, University of Georgia, 2360 Rainwater Road, Tifton, GA 31793, USA; (A.K.); (M.D.T.); (P.M.R.)
| | - Juang-Horng Chong
- Agriculture, Forestry and Life Sciences, Clemson University, Clemson, SC 29634, USA;
| | - William E. Snyder
- Department of Entomology, University of Georgia, Athens, GA 30602, USA;
| | - Jason M. Schmidt
- Department of Entomology, University of Georgia, 2360 Rainwater Road, Tifton, GA 31793, USA; (A.K.); (M.D.T.); (P.M.R.)
- Correspondence:
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Abram PK, Mills NJ, Beers EH. Review: classical biological control of invasive stink bugs with egg parasitoids - what does success look like? PEST MANAGEMENT SCIENCE 2020; 76:1980-1992. [PMID: 32149462 DOI: 10.1002/ps.5813] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 03/02/2020] [Accepted: 03/09/2020] [Indexed: 06/10/2023]
Abstract
Although the enemy release hypothesis forms the theoretical basis for classical (=importation) biological control of invasive pests, its core assumptions are not always examined. This could contribute to unrealistic expectations for some biological control programs. In this paper we examine the assumptions that: (i) enemy release has contributed to the invasive nature of four exotic pentatomids in North America; and (ii) classical biological control with egg parasitoids has been or will be successful in reducing populations of these pests below economically significant levels. First, we review the history of biological control programs against invasive stink bugs to highlight the variable and controversial levels of success of introducing egg parasitoids against stink bugs. Then, we use simple stage-structured matrix models to demonstrate that it may be easy to overestimate the contribution of egg parasitism alone to a reduction in stink bug population growth. Finally, we discuss what realistic expectations might be for success of biological control against invasive stink bugs using egg parasitoids in the context of integrated pest management programs. © 2020 Her Majesty the Queen in Right of Canada Pest Management Science © 2020 Society of Chemical Industry.
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Affiliation(s)
- Paul K Abram
- Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, Agassiz, Canada
| | - Nicholas J Mills
- Department of Environmental Science, Policy & Management, University of California, Berkeley, CA, USA
| | - Elizabeth H Beers
- Department of Entomology, Tree Fruit Research & Extension, Washington State University, Wenatchee, WA, USA
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Silva Barros L, Takao Yamamoto P, Merten P, Naranjo SE. Sublethal Effects of Diamide Insecticides on Development and Flight Performance of Chloridea virescens (Lepidoptera: Noctuidae): Implications for Bt Soybean Refuge Area Management. INSECTS 2020; 11:insects11050269. [PMID: 32354195 PMCID: PMC7290381 DOI: 10.3390/insects11050269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/20/2020] [Accepted: 04/24/2020] [Indexed: 11/16/2022]
Abstract
High-dose and refuge are the most important strategies for delaying resistance evolution in Bt crops. Insecticide sprays in refuge areas could be necessary and may limit refuge effectiveness. Here, we evaluated the sublethal effects of two diamide insecticides (chlorantraniliprole and flubendiamide) on Chloridea virescens life history traits and flight performance. Sublethal concentrations of chlorantraniliprole and flubendiamide increased larval and pre-pupal development times and decreased larval weight; flubendiamide increased pupal development times. Chlorantraniliprole increased adult male longevity and reduced female fertility, while flubendiamide reduced fecundity. Overall life table parameters were negatively impacted by both treatments. Males exposed to either insecticide showed significant reductions in flight duration and distance for unsustained flights (<30 min). The duration and distance of the first flights were reduced when exposed to chlorantraniliprole. Sustained flights (>30 min) were generally unaffected by insecticide exposure and both sexes flew >6400 m in a single flight. The sublethal effects of flubendiamide and chlorantraniliprole on C. virescens' population dynamics could lead to generation asynchrony and provide insufficient susceptible moths when sprayed on refuge crops. However, the distance and duration of flight may still be sufficient to ensure mixing of potentially resistant and susceptible populations from refuge plots.
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Affiliation(s)
- Lucas Silva Barros
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Av. Pádua Dias 11, Piracicaba, São Paulo 13418-900, Brazil;
- Correspondence:
| | - Pedro Takao Yamamoto
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Av. Pádua Dias 11, Piracicaba, São Paulo 13418-900, Brazil;
| | - Paul Merten
- USDA-ARS, Arid-Land Agricultural Research Center, 21881 North Cardon Lane, Maricopa, AZ 85138, USA; (P.M.); (S.E.N.)
| | - Steve E. Naranjo
- USDA-ARS, Arid-Land Agricultural Research Center, 21881 North Cardon Lane, Maricopa, AZ 85138, USA; (P.M.); (S.E.N.)
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Zhang X, Ferrante M, Wan F, Yang N, Lövei GL. The Parasitoid Eretmocerus hayati Is Compatible with Barrier Cropping to Decrease Whitefly ( Bemisia tabaci MED) Densities on Cotton in China. INSECTS 2020; 11:insects11010057. [PMID: 31963471 PMCID: PMC7022622 DOI: 10.3390/insects11010057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/14/2020] [Accepted: 01/15/2020] [Indexed: 11/16/2022]
Abstract
The whitefly, Bemisia tabaci (Gennadius) cryptic species Mediterranean (MED), is a destructive insect pest worldwide. In order to contribute to controlling B. tabaci by non-chemical methods, we examined the possibility of using a combination of trap/barrier crops and a parasitoid natural enemy in cotton. We performed field experiments using cantaloupe (Cucumis melo) and sunflower (Helianthus annuus) as trap crops and maize (Zea mays) as a barrier crop combined with periodic releases of the parasitoid Eretmocerus hayati in Hebei Province, Northern China. All treatments significantly reduced immature whitefly densities. Parasitism rate was significantly higher in cotton plots intercropped with sunflower and with perimeter-planted cantaloupe. Adult whitefly density was negatively related to parasitoid abundance and was significantly lower in cotton plots intercropped with maize than in the control plots. Intercropping was more effective than perimeter-planting at reducing B. tabaci densities and increasing yield. Parasitoid dispersal was not hampered by barrier crops, indicating that the two methods of control are compatible. These results contribute to the development of integrated pest management methods against this important pest.
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Affiliation(s)
- Xiaoming Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Z.); (F.W.)
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - Marco Ferrante
- Mitrani Department of Desert Ecology, Ben Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben Gurion IL-8499000, Israel;
- CE3C–Centre for Ecology, Evolution and Environmental Changes, Azorean Biodiversity Group, Faculty of Agricultural and Environmental Sciences, University of the Azores, PT-9700-042 Angra do Heroísmo, Portugal
| | - Fanghao Wan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Z.); (F.W.)
| | - Nianwan Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Z.); (F.W.)
- Correspondence: (N.Y.); (G.L.L.); Tel.: +45-8715-8224 (G.L.L.)
| | - Gábor L. Lövei
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Z.); (F.W.)
- Department of Agroecology, Aarhus University, Flakkebjerg Research Centre, DK-4200 Slagelse, Denmark
- Correspondence: (N.Y.); (G.L.L.); Tel.: +45-8715-8224 (G.L.L.)
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