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  1. Article ; Online: Resident parasitoids associated with Drosophilidae in Michigan tart cherry orchards and woodland edges

    Huang, Juan / Leach, Heather / Buffington, Matthew / Rothwell, Nikki / Wilson, Julianna K.

    Journal of Hymenoptera Research. 2023 June 02, v. 96 p.485-494

    2023  

    Abstract: Knowledge of the distribution and abundance of resident parasitoid species of flies constitutes an important base for developing and implementing a biological control program for (Matsumura) (Diptera: Drosophilidae), an invasive pest that attacks ... ...

    Abstract Knowledge of the distribution and abundance of resident parasitoid species of flies constitutes an important base for developing and implementing a biological control program for (Matsumura) (Diptera: Drosophilidae), an invasive pest that attacks ripening thin-skinned wild and cultivated berries and stone fruits. For this purpose, a field survey was conducted to identify the parasitoid community associated with . infested sites in tart cherry orchards and woodlots in west, northwest, and central Michigan. Sentinel traps baited with . larvae and pupae in banana slices were deployed in the center of tart cherry orchards, in woodlots adjacent to tart cherry orchards, and in woodlots isolated from any known commercial host of . . Traps were placed from the beginning of July to the end of October 2021. Three parasitoid species that are known to use drosophilids as hosts were recovered from these traps. (Rondani) (Hymenoptera: Pteromalidae) and Barbotin, Carton & Keiner-Pil
    Keywords Drosophilidae ; Figitidae ; Prunus cerasus ; Pteromalidae ; bananas ; biological control ; parasitoids ; research ; surveys ; woodlands ; Michigan ; sentinel trap ; spotted wing drosophila ; wasp
    Language English
    Dates of publication 2023-0602
    Size p. 485-494.
    Publishing place Pensoft Publishers
    Document type Article ; Online
    Note Resource is Open Access
    ZDB-ID 2477175-2
    ISSN 1314-2607 ; 1070-9428
    ISSN (online) 1314-2607
    ISSN 1070-9428
    DOI 10.3897/jhr.96.103160
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  2. Article ; Online: Evaluating pheromone dispenser density and longevity for San Jose scale mating disruption in apple orchards

    Maas, Jessika / Huang, Juan / Leach, Heather / Wilson, Julianna K.

    Crop Protection. 2023 Oct., v. 172 p.106337-

    2023  

    Abstract: San Jose scale (Comstockaspis perniciosus Comstock) (Hemiptera: Diaspididae) is a cryptic sap-sucking pest in temperate orchards. In recent years, San Jose scale has become more challenging to manage, in part due to the loss of registered insecticides ... ...

    Abstract San Jose scale (Comstockaspis perniciosus Comstock) (Hemiptera: Diaspididae) is a cryptic sap-sucking pest in temperate orchards. In recent years, San Jose scale has become more challenging to manage, in part due to the loss of registered insecticides and difficulty in timing insecticide applications with the appropriate life stage. For insects like San Jose scale whose sex pheromones are known, mating disruption presents a biorational alternative to insecticide use in orchards. In 2020 and 2021, we evaluated this approach for San Jose scale in on-farm trials in Michigan apple orchards. ISOMATE® twin-tube reservoir dispensers primed with San Jose scale mating pheromone were placed into small orchard plots with densities ranging from 62 to 926 per ha to determine optimum density for control. In both years, male capture using baited traps was significantly reduced in plots under mating disruption, suggesting competitive population suppression. Optimum density of dispensers was determined to be 247 per hectare. A separate comparison study of the ISOMATE® twin-tube and CIDETRAK® MESO pheromone dispensers showed comparable efficacy despite differing release rates between the two types of dispensers. However, higher rates did provide greater suppression during the lower population densities in the first generation. We suggest there is some flexibility with rate and dispenser types for efficacious control. We also provide updated information on the phenology of the male San Jose scale flight activity. These results provide evidence for the potential utility of pheromone mating disruption for managing San Jose scale in apple orchards and highlight focus for further optimization.
    Keywords Diaspidiotus perniciosus ; apples ; flight ; insecticides ; longevity ; males ; orchards ; pests ; phenology ; pheromones ; plant protection ; Michigan ; Comstockaspis perniciosus ; Sex pheromone ; Dispenser ; Lure ; Trap ; Integrated pest management ; Biorational
    Language English
    Dates of publication 2023-10
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 786839-x
    ISSN 1873-6904 ; 0261-2194
    ISSN (online) 1873-6904
    ISSN 0261-2194
    DOI 10.1016/j.cropro.2023.106337
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  3. Article ; Online: Fungicide Exposure in Honey Bee Hives Varies By Time, Worker Role, and Proximity to Orchards in Spring.

    Perkins, Jacquelyn A / Kim, Kyungmin / Gut, Larry J / Sundin, George W / Wilson, Julianna K

    Journal of economic entomology

    2023  Volume 116, Issue 2, Page(s) 435–446

    Abstract: Fungicides are commonly applied to prevent diseases in eastern North American cherry orchards at the same time that honey bees (Apis mellifera L. (Hymenoptera: Apidae)) are rented for pollination services. Fungicide exposure in honey bees can cause ... ...

    Abstract Fungicides are commonly applied to prevent diseases in eastern North American cherry orchards at the same time that honey bees (Apis mellifera L. (Hymenoptera: Apidae)) are rented for pollination services. Fungicide exposure in honey bees can cause negative health effects. To measure fungicide exposure, we sampled commercial honey bee colonies during orchard bloom at two commercial tart cherry orchards and one holding yard in northern Michigan over two seasons. Nurse bees, foragers, larvae, pollen, bee bread, and wax were screened for captan, chlorothalonil, and thiophanate-methyl. We also looked at the composition of pollens collected by foragers during spring bloom. We found differences in fungicide residue levels between nurse bees and foragers, with higher captan levels in nurse bees. We also found that residue levels of chlorothalonil in workers were significantly increased during tart cherry bloom, and that nurse bees from hives adjacent to orchards had significantly higher chlorothalonil residues than nurse bees from hives kept in a holding yard. Our results suggest that fungicide exposure of individual honey bees depends greatly on hive location in relation to mass-flowering crops, and worker role (life stage) at the time of collection. In some pollen samples, captan and chlorothalonil were detected at levels known to cause negative health effects for honey bees. This study increases our understanding of exposure risk for bees under current bloom time orchard management in this region. Further research is needed to balance crop disease management requirements with necessary pollination services and long-term pollinator health.
    MeSH term(s) Bees ; Animals ; Fungicides, Industrial ; Captan ; Seasons ; Nitriles ; Prunus avium ; Pollination
    Chemical Substances Fungicides, Industrial ; tetrachloroisophthalonitrile (J718M71A7A) ; Captan (EOL5G26Q9F) ; Nitriles
    Language English
    Publishing date 2023-01-25
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 3031-4
    ISSN 1938-291X ; 0022-0493
    ISSN (online) 1938-291X
    ISSN 0022-0493
    DOI 10.1093/jee/toad008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Predicting the Risk of Tart Cherry (Prunus cerasus) Infestation by Drosophila suzukii (Diptera: Drosophilidae)

    Wilson, Julianna K. / Gut, Larry J. / Powers, Karen / Huang, Juan / Rothwell, Nikki

    Journal of economic entomology. 2022 Aug. 19, v. 115, no. 4

    2022  

    Abstract: Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae) is a vinegar fly native to East Asia that has rapidly expanded its range to become a pest of sweet cherry (Prunus avium, L. 1753 [Rosales: Rosaceae]) and tart cherry (P. cerasus, L. 1753) in ... ...

    Abstract Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae) is a vinegar fly native to East Asia that has rapidly expanded its range to become a pest of sweet cherry (Prunus avium, L. 1753 [Rosales: Rosaceae]) and tart cherry (P. cerasus, L. 1753) in North America and Europe. The goal of the research presented herein was to improve the decision-making process for managing D. suzukii in tart cherry. Knowing that D. suzukii females are attracted to ripening fruit, we measured fruit infestation by D. suzukii as it relates to an existing fruit development model that uses full bloom as a biofix, calculating accumulated growing degree days (GDD) with a lower threshold of 4°C. Increasing larval infestation was highly correlated with fruit development expressed as GDD post-bloom with very few larvae developing in fruit subjected to no-choice assays prior to 530 GDD (base 4°C) and no larvae detected in naturally infested fruit prior to 800 GDD. Our findings provide the first quantification of the relationship between fruit development and D. suzukii infestation that allows for pinpointing the timing of fruit susceptibility and that could be used as the basis for a more sustainable management program for this pest in tart cherry orchards.
    Keywords Drosophila suzukii ; Prunus avium ; Prunus cerasus ; decision making ; entomology ; flowering ; fruiting ; fruits ; larvae ; models ; pests ; risk ; East Asia ; Europe ; North America
    Language English
    Dates of publication 2022-0819
    Size p. 1024-1028.
    Publishing place Entomological Society of America
    Document type Article
    ZDB-ID 3031-4
    ISSN 0022-0493
    ISSN 0022-0493
    DOI 10.1093/jee/toac024
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  5. Article ; Online: Predicting the Risk of Tart Cherry (Prunus cerasus) Infestation by Drosophila suzukii (Diptera: Drosophilidae).

    Wilson, Julianna K / Gut, Larry J / Powers, Karen / Huang, Juan / Rothwell, Nikki

    Journal of economic entomology

    2022  Volume 115, Issue 4, Page(s) 1024–1028

    Abstract: Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae) is a vinegar fly native to East Asia that has rapidly expanded its range to become a pest of sweet cherry (Prunus avium, L. 1753 [Rosales: Rosaceae]) and tart cherry (P. cerasus, L. 1753) in ... ...

    Abstract Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae) is a vinegar fly native to East Asia that has rapidly expanded its range to become a pest of sweet cherry (Prunus avium, L. 1753 [Rosales: Rosaceae]) and tart cherry (P. cerasus, L. 1753) in North America and Europe. The goal of the research presented herein was to improve the decision-making process for managing D. suzukii in tart cherry. Knowing that D. suzukii females are attracted to ripening fruit, we measured fruit infestation by D. suzukii as it relates to an existing fruit development model that uses full bloom as a biofix, calculating accumulated growing degree days (GDD) with a lower threshold of 4°C. Increasing larval infestation was highly correlated with fruit development expressed as GDD post-bloom with very few larvae developing in fruit subjected to no-choice assays prior to 530 GDD (base 4°C) and no larvae detected in naturally infested fruit prior to 800 GDD. Our findings provide the first quantification of the relationship between fruit development and D. suzukii infestation that allows for pinpointing the timing of fruit susceptibility and that could be used as the basis for a more sustainable management program for this pest in tart cherry orchards.
    MeSH term(s) Animals ; Drosophila ; Female ; Fruit ; Insect Control ; Larva ; Prunus avium ; Risk Factors
    Language English
    Publishing date 2022-01-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3031-4
    ISSN 1938-291X ; 0022-0493
    ISSN (online) 1938-291X
    ISSN 0022-0493
    DOI 10.1093/jee/toac024
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Field releases of the exotic parasitoid Trissolcus japonicus (Hymenoptera: Scelionidae) and survey of native parasitoids attacking Halyomorpha halys (Hemiptera: Pentatomidae) in Michigan.

    Simaz, Olivia / Michaelson, Julie / Wilson, Julianna K / Talamas, Elijah / Gut, Larry / Pote, John / Szűcs, Marianna

    Environmental entomology

    2023  Volume 52, Issue 6, Page(s) 998–1007

    Abstract: An adventive population of the exotic parasitoid wasp, Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae), discovered in Michigan in 2018, is a promising biological control agent of the invasive Halyomorpha halys (Stål) (Hemiptera: Pentatomidae). ... ...

    Abstract An adventive population of the exotic parasitoid wasp, Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae), discovered in Michigan in 2018, is a promising biological control agent of the invasive Halyomorpha halys (Stål) (Hemiptera: Pentatomidae). Following its discovery, field releases of Tr. japonicus were conducted over 2 yr in southern Michigan, to test how release size or release frequency impacts establishment. Sentinel eggs of H. halys and of the native Podisus maculiventris (Say) (Hemiptera: Pentatomidae) were used alongside yellow sticky cards to monitor parasitoids. In 2019 and 2020, 7,200 Tr. japonicus were released at 16 sites. Monitoring between 2019 and 2021 yielded only 49 individuals. The captures suggest reproductive activity and overwintering success in the field but do not allow for evaluation of best release methods. Parasitism by native parasitoids was below 7%, which is similar to other states and unlikely to provide sufficient control of H. halys. The placement of sentinel eggs or sticky traps either in the lower or middle canopy of trees did not influence parasitoid capture rates. Frozen and fresh H. halys sentinel eggs were attacked at the same rate, but more native parasitoids emerged from frozen eggs. We did not find signs of nontarget effects on P. maculiventris thus parasitism rates overall were very low. These results could indicate dispersal of Tr. japonicus from the release sites or slow population growth. The latter may be due to the relatively low densities of H. halys in Michigan or may stem from the small founding size of our laboratory colony.
    MeSH term(s) Animals ; Michigan ; Heteroptera ; Wasps ; Trees ; Reproduction
    Language English
    Publishing date 2023-10-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 120799-4
    ISSN 1938-2936 ; 0046-2268 ; 0046-225X
    ISSN (online) 1938-2936
    ISSN 0046-2268 ; 0046-225X
    DOI 10.1093/ee/nvad102
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Wildflower plantings on fruit farms provide pollen resources and increase nesting by stem nesting bees

    Graham, Kelsey K / Perkins, Jacquelyn A / Peake, Alexandrea / Killewald, Michael / Zavalnitskaya, Jennifer / Wilson, Julianna K / Isaacs, Rufus

    Agricultural and forest entomology. 2021 May, v. 23, no. 2

    2021  

    Abstract: Wildflower plantings on farms have been shown to attract foraging wild bees, however, whether these added floral resources increase nesting densities of bees remains largely untested. We placed nest boxes containing natural reeds at 20 fruit farms in ... ...

    Abstract Wildflower plantings on farms have been shown to attract foraging wild bees, however, whether these added floral resources increase nesting densities of bees remains largely untested. We placed nest boxes containing natural reeds at 20 fruit farms in Michigan. We then compared nesting densities between farms with and without wildflower plantings and analysed nest provisions to evaluate use of wildflower plantings for brood provisioning. We found significantly greater nesting at farms with wildflower plantings, with only one out of 236 completed nests at a farm without a planting. The majority of nests were completed by Megachile pugnata, with a portion of nests completed by Osmia caerulescens. We found that nesting bees collected pollen from only a subset of the available flowers in the wildflower plantings, with a strong preference for Centaurea maculosa, and Rudbeckia type pollens. While these species were found growing in the plantings, only Rudbeckia type species were seeded in the plantings. This study provides evidence that wildflower plantings (though not only seeded species) are filling a critical resource gap for stem‐nesting bees in agricultural landscapes and likely support local populations.
    Keywords Centaurea ; Megachile pugnata ; Osmia ; Rudbeckia ; entomology ; farms ; forests ; fruits ; nests ; pollen ; wild flowers ; Michigan
    Language English
    Dates of publication 2021-05
    Size p. 222-231.
    Publishing place Blackwell Publishing Ltd
    Document type Article
    Note NAL-AP-2-clean ; JOURNAL ARTICLE
    ZDB-ID 1444210-3
    ISSN 1461-9563 ; 1461-9555
    ISSN (online) 1461-9563
    ISSN 1461-9555
    DOI 10.1111/afe.12424
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  8. Article: Responding to the US national pollinator plan: a case study in Michigan

    Bloom, Elias H / Graham, Kelsey K / Haan, Nathan L / Heck, Ana R / Gut, Larry J / Landis, Douglas A / Milbrath, Meghan O / Quinlan, Gabriela M / Wilson, Julianna K / Zhang, Yajun / Szendrei, Zsofia / Isaacs, Rufus

    Frontiers in ecology and the environment. 2022 Mar., v. 20, no. 2

    2022  

    Abstract: The long‐term health of pollinators is a critical issue for the functioning of natural habitats and for agricultural production. In response to widespread public concern about the future of these ecologically and economically important animals, in 2015 ... ...

    Abstract The long‐term health of pollinators is a critical issue for the functioning of natural habitats and for agricultural production. In response to widespread public concern about the future of these ecologically and economically important animals, in 2015 the US Government released a national strategy to support pollinators, including research priorities, directives for funding, and timelines for achieving three overarching goals. Five years after this strategic plan was released, we evaluate progress toward the national targets for improved honey bee (Apis mellifera) overwintering survival, expanded pollinator habitat, and larger monarch butterfly (Danaus plexippus) populations, and find that the three goals of the plan have not yet been reached. Our research and extension programs to improve the health of honey bees, wild bees, and monarch butterflies in the US state of Michigan are described, providing opportunities to contribute to the national pollinator goals.
    Keywords Apis mellifera ; Danaus plexippus ; case studies ; environment ; habitats ; honey ; honey bees ; overwintering ; pollinators ; Michigan
    Language English
    Dates of publication 2022-03
    Size p. 84-92.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note REVIEW
    ZDB-ID 2110853-5
    ISSN 1540-9309 ; 1540-9295
    ISSN (online) 1540-9309
    ISSN 1540-9295
    DOI 10.1002/fee.2430
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  9. Article ; Online: Does Passive Sampling Accurately Reflect the Bee (Apoidea: Anthophila) Communities Pollinating Apple and Sour Cherry Orchards?

    Gibbs, Jason / Joshi, Neelendra K / Wilson, Julianna K / Rothwell, Nikki L / Powers, Karen / Haas, Mike / Gut, Larry / Biddinger, David J / Isaacs, Rufus

    Environmental entomology

    2017  Volume 46, Issue 3, Page(s) 579–588

    Abstract: During bloom of spring orchard crops, bees are the primary providers of pollination service. Monitoring these insects for research projects is often done by timed observations or by direct aerial netting, but there has been increasing interest in blue ... ...

    Abstract During bloom of spring orchard crops, bees are the primary providers of pollination service. Monitoring these insects for research projects is often done by timed observations or by direct aerial netting, but there has been increasing interest in blue vane traps as an efficient passive approach to collecting bees. Over multiple spring seasons in Michigan and Pennsylvania, orchards were monitored for wild bees using timed netting from crop flowers and blue vane traps. This revealed a distinctly different community of wild bees captured using the two methods, suggesting that blue vane traps can complement but cannot replace direct aerial netting. The bee community in blue vane traps was generally composed of nonpollinating species, which can be of interest for broader biodiversity studies. In particular, blue vane traps caught Eucera atriventris (Smith), Eucera hamata (Bradley), Bombus fervidus (F.), and Agapostemon virescens (F.) that were never collected from the orchard crop flowers during the study period. Captures of bee species in nets was generally stable across the 3 yr, whereas we observed significant declines in the abundance of Lasioglossum pilosum (Smith) and Eucera spp. trapped using blue vane traps during the project, suggesting local overtrapping of reproductive individuals. We conclude that blue vane traps are a useful tool for expanding insights into bee communities within orchard crop systems, but they should be used with great caution to avoid local extirpation of these important insects.
    MeSH term(s) Agriculture/methods ; Animals ; Bees/classification ; Biodiversity ; Malus/growth & development ; Michigan ; Pennsylvania ; Pollination ; Prunus avium/growth & development ; Seasons
    Language English
    Publishing date 2017-03-23
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 120799-4
    ISSN 1938-2936 ; 0046-2268 ; 0046-225X
    ISSN (online) 1938-2936
    ISSN 0046-2268 ; 0046-225X
    DOI 10.1093/ee/nvx069
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Does Passive Sampling Accurately Reflect the Bee (Apoidea: Anthophila) Communities Pollinating Apple and Sour Cherry Orchards?

    Gibbs, Jason / Joshi, Neelendra K / Wilson, Julianna K / Rothwell, Nikki L / Powers, Karen / Haas, Mike / Gut, Larry / Biddinger, David J / Isaacs, Rufus

    Environmental entomology. 2017 June 01, v. 46, no. 3

    2017  

    Abstract: During bloom of spring orchard crops, bees are the primary providers of pollination service. Monitoring these insects for research projects is often done by timed observations or by direct aerial netting, but there has been increasing interest in blue ... ...

    Abstract During bloom of spring orchard crops, bees are the primary providers of pollination service. Monitoring these insects for research projects is often done by timed observations or by direct aerial netting, but there has been increasing interest in blue vane traps as an efficient passive approach to collecting bees. Over multiple spring seasons in Michigan and Pennsylvania, orchards were monitored for wild bees using timed netting from crop flowers and blue vane traps. This revealed a distinctly different community of wild bees captured using the two methods, suggesting that blue vane traps can complement but cannot replace direct aerial netting. The bee community in blue vane traps was generally composed of nonpollinating species, which can be of interest for broader biodiversity studies. In particular, blue vane traps caught Eucera atriventris (Smith), Eucera hamata (Bradley), Bombus fervidus (F.), and Agapostemon virescens (F.) that were never collected from the orchard crop flowers during the study period. Captures of bee species in nets was generally stable across the 3 yr, whereas we observed significant declines in the abundance of Lasioglossum pilosum (Smith) and Eucera spp. trapped using blue vane traps during the project, suggesting local overtrapping of reproductive individuals. We conclude that blue vane traps are a useful tool for expanding insights into bee communities within orchard crop systems, but they should be used with great caution to avoid local extirpation of these important insects.
    Keywords Agapostemon ; Anthophila ; Bombus fervidus ; Eucera ; Lasioglossum ; Prunus cerasus ; bees ; biodiversity ; crops ; flowers ; monitoring ; netting ; orchards ; pollination ; spring ; traps ; Michigan ; Pennsylvania
    Language English
    Dates of publication 2017-0601
    Size p. 579-588.
    Publishing place Oxford University Press
    Document type Article
    ZDB-ID 120799-4
    ISSN 1938-2936 ; 0046-2268 ; 0046-225X
    ISSN (online) 1938-2936
    ISSN 0046-2268 ; 0046-225X
    DOI 10.1093/ee/nvx069
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