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1.
A derived honey bee stock confers resistance to Varroa destructor and associated viral transmission
Publish Date: 2022-04-07
Author/Source: Thomas A. O’Shea-Wheller, Frank D. Rinkevich, Robert G. Danka, Michael Simone-Finstrom, Philip G. Tokarz & Kristen B. Healy
Description: Pol-line honey bees, a type of Varroa mite resistant honey bee developed by the Agricultural Research Service, are more than twice as likely to survive through the winter than standard honey bees, according to a study published in Scientific Reports. Although ARS developed Pol-line bees in 2014, this study was the first time that they were tested head-to-head alongside standard honey bee stock in commercial apiaries providing pollination services and producing honey. Colonies' ability to survive winter without being treated to control Varroa mites was followed in four states: Mississippi, California, and North and South Dakota
States/Regions: Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
2.
A derived honey bee stock confers resistance to Varroa destructor and associated viral transmission
Publish Date: 2022-04-07
Author/Source: Thomas A. O’Shea-Wheller, Frank D. Rinkevich, Robert G. Danka, Michael Simone-Finstrom, Philip G. Tokarz & Kristen B. Healy
Description: Pol-line honey bees, a type of Varroa mite resistant honey bee developed by the Agricultural Research Service, are more than twice as likely to survive through the winter than standard honey bees, according to a study published in Scientific Reports. Although ARS developed Pol-line bees in 2014, this study was the first time that they were tested head-to-head alongside standard honey bee stock in commercial apiaries providing pollination services and producing honey. Colonies' ability to survive winter without being treated to control Varroa mites was followed in four states: Mississippi, California, and North and South Dakota
States/Regions: Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
3.
A derived honey bee stock confers resistance to Varroa destructor and associated viral transmission
Publish Date: 2022-04-07
Author/Source: Thomas A. O’Shea-Wheller, Frank D. Rinkevich, Robert G. Danka, Michael Simone-Finstrom, Philip G. Tokarz & Kristen B. Healy
Description: Pol-line honey bees, a type of Varroa mite resistant honey bee developed by the Agricultural Research Service, are more than twice as likely to survive through the winter than standard honey bees, according to a study published in Scientific Reports. Although ARS developed Pol-line bees in 2014, this study was the first time that they were tested head-to-head alongside standard honey bee stock in commercial apiaries providing pollination services and producing honey. Colonies' ability to survive winter without being treated to control Varroa mites was followed in four states: Mississippi, California, and North and South Dakota
States/Regions: Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
4.
A derived honey bee stock confers resistance to Varroa destructor and associated viral transmission
Publish Date: 2022-04-07
Author/Source: Thomas A. O’Shea-Wheller, Frank D. Rinkevich, Robert G. Danka, Michael Simone-Finstrom, Philip G. Tokarz & Kristen B. Healy
Description: Pol-line honey bees, a type of Varroa mite resistant honey bee developed by the Agricultural Research Service, are more than twice as likely to survive through the winter than standard honey bees, according to a study published in Scientific Reports. Although ARS developed Pol-line bees in 2014, this study was the first time that they were tested head-to-head alongside standard honey bee stock in commercial apiaries providing pollination services and producing honey. Colonies' ability to survive winter without being treated to control Varroa mites was followed in four states: Mississippi, California, and North and South Dakota
States/Regions: Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
5.
A derived honey bee stock confers resistance to Varroa destructor and associated viral transmission
Publish Date: 2022-04-07
Author/Source: Thomas A. O’Shea-Wheller, Frank D. Rinkevich, Robert G. Danka, Michael Simone-Finstrom, Philip G. Tokarz & Kristen B. Healy
Description: Here, we characterise the parasite and viral dynamics of a Varroa-resistant honey bee stock, designated ‘Pol-line’, using a large-scale longitudinal study. Results demonstrate markedly reduced Varroa levels in this stock, diminished titres of three major viruses (DWV-A, DWV-B, and CBPV), and a two-fold increase in survival. Levels of a fourth virus that is not associated with Varroa—BQCV—do not differ between stocks, supporting a disruption of the transmission pathway.
States/Regions: Mid-Atlantic, National, New England, Northeast
Diagnostic Photo
6.
Parasite dynamics in North American monarchs predicted by host density and seasonal migratory culling
Publish Date: 2021-08-01
Author/Source: Ania A. Majewska, Andrew K. Davis, Sonia Altizer, Jacobus C. de Roode
Description: Average infection prevalence was four times higher in western compared to eastern subpopulations. In eastern North America, the proportion of infected monarchs increased three-fold since the mid-2000s. In the western region, the proportion of infected monarchs declined sharply from 2000-2015, and increased thereafter. For both eastern and western subpopulations, years with greater summer adult abundance predicted greater infection prevalence, indicating that transmission increases with host breeding density. Environmental variables (temperature and NDVI) were not associated with changes in infected adults. We found evidence for migratory culling of infected butterflies, based on declines in parasitism during fall migration. We estimated that tens of millions fewer monarchs reach overwintering sites in Mexico as a result of OE, highlighting the need to consider the parasite as a potential threat to the monarch population
States/Regions: Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
7.
Pollinators and plant nurseries: how irrigation and pesticide treatment of native ornamental plants impact solitary bees
Publish Date: 2021-07-28
Author/Source: Jacob M. Cecala and Erin E. Wilson Rankin
Description: We designed a two-factor field cage experiment in which we reared Megachile rotundata (Fabricius) (Hymenoptera: Megachilidae) on containerized ornamental plants grown under two different irrigation levels and imidacloprid treatments (30% label rate dosage of a nursery formulation or an untreated control). Lower irrigation was associated with modest decreases in nectar volume and floral abundance in untreated plants, whereas irrigation did not affect plants treated with imidacloprid. Furthermore, higher irrigation decreased the amount of imidacloprid entering nectar. Imidacloprid application strongly reduced bee foraging activity and reproduction, and higher irrigation did not offset any negative effects on bees.
States/Regions: International, National
Diagnostic Photo
8.
Effects of glyphosate spray-drift on plant flowering
Publish Date: 2021-07-01
Author/Source: B. Strandberg, P.B. Sørensen, M. Bruus, R. Bossi, Y .L. Dupont, M. Link, C. F. Damgaard
Description: Recent studies have shown that sub-lethal doses of herbicides may affect plant flowering, however, no study has established a direct relationship between the concentrations of deposited herbicide and plant flowering. Here the aim was to investigate the relationship between herbicide spray drift deposited on non-target plants and plant flowering in a realistic agro-ecosystem setting.
States/Regions: International, National
Diagnostic Photo
9.
Pesticides in honey bee colonies: Establishing a baseline for real world exposure over seven years in the USA
Publish Date: 2021-06-15
Author/Source: Kirsten S.Traynor, Simone Tosi, Karen Rennich, Nathalie Steinhauer, Eva Forsgren, Robyn Rose, Grace Kunkel, Shayne Madella, Dawn Lopez, Heather Eversole, Rachel Fahey, Jeffery Pettis, Jay D.Evans, Dennis vanEngelsdorp
Description: valuating pesticide exposure risk to pollinators is an ongoing problem. Here we apply five metrics for pesticide exposure risk (prevalence, diversity, concentration, significant pesticide prevalence, and hazard quotient (HQ)) to a nation-wide field study of honey bees, Apis mellifera in the United States.
State/Region: National
Diagnostic Photo
10.
Beneficial Insects in New Hampshire Farms and Gardens (PDF)
Publish Date: 2017
Author/Source: Dr. Alan T. Eaton, Extension Specialist, Entomology
Description: There are plenty of references on insect pests, but relatively few that feature beneficial insects. Beneficial insects are all around us. This guide contains descriptions and detailed photographs to help you spot them in your yard.
State: New Hampshire
Diagnostic Photo
11.
Texas Entomology
Publish Date: 2017
Author/Source: Mike Quinn
Description: A large collection of images and other data about insects, mainly from Texas and the Southwest. Compiled by Mike Quinn.
State: Texas
Diagnostic Photo
12.
http://www.pnas.org/content/early/2015/12/17/1517685113.abstract.html?etoc
Publish Date: 2015-11-20
Author/Source: Insu Koha,1, Eric V. Lonsdorfa,b, Neal M. Williamsc, Claire Brittainc, Rufus Isaacsd, Jason Gibbsd, and Taylor H. Ricketts
Description: We use a spatial habitat model, national land-cover data, and carefully quantified expert knowledge to estimate wild bee abundance and associated uncertainty. Between 2008 and 2013, modeled bee abundance declined across 23% of US land area. This decline was generally associated with conversion of natural habitats to row crops.
States/Regions: International, Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
13.
Negative effects of pesticides on wild bee communities can be buffered by landscape context
Publish Date: 2015-06-03
Author/Source: Mia G. Park, E. J. Blitzer, Jason Gibbs, John E. Losey, Bryan N. Danforth
Description: Here, we assess the effect of conventional pesticide use on the wild bee community visiting apple (Malus domestica) within a gradient of percentage natural area in the landscape.
States/Regions: Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
14.
Using 2014 Farm Bill Programs for Pollinator Conservation (PDF)
Publish Date: 2015-05-01
Author/Source: Xerces Society and NRCS
Description: Authored by multiple staff at both the Xerces Society and NRCS, these guidelines provide a concise summary of how Farm Bill conservation programs, such as the Environmental Quality Incentive Program or the Conservation Reserve Program, can be used to restore or enhance habitat for pollinators on working farms and private lands.
State/Region: National
15.
IPM Practitioner's 2015 Directory of Least-Toxic Pest Control Products
Publish Date: 2015
Author/Source: Bio-Integral Resource Center
Description: The IPM Practitioner's 2015 Directory of Least-Toxic Pest Control Products contains more than 2,000 products produced by more than 600 suppliers. The Directory is unique because it is compiled by IPM technical experts, includes specific product descriptions, and is organized in concert with the IPM decision making process. Thus, it is easy to find a biological control for an aphid, a pheromone for a moth, or a bait for an ant. The Directory gives contact information and access to suppliers of biocontrol products, traps, pheromones, physical controls, tools, barriers, and least-toxic chemical control products.
State/Region: National
16.
Honey bee diet in intensive farmland habitats reveals an unexpectedly high flower richness and a major role of weeds Read More: http://www.esajournals.org/doi/abs/10.1890/14-1011.1
Publish Date: 2014-11-14
Author/Source: Fabrice Requier, Jean-François Odoux, Thierry Tamic1 Nathalie Moreau, Mickaël Henry, Axel Decourtye and Vincent Bretagnolle
Description: The seasonal dynamics and composition of the honey bee diet remains poorly documented to date. In this study, we studied the seasonal contribution of mass-flowering crops (rapeseed and sunflower) vs. other floral resources, as well as the influence of nutritional quality and landscape composition on pollen diet composition over five consecutive years.
States/Regions: International, Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
17.
IPM and Pollinators: What is the appropriate role for IPM on the issue of Pollinators?
Publish Date: 2014-11-12
Description: a discussion on the topic of pollinators in a live-streamed web event: "Integrated Pest Management (IPM) and Pollinators: What is the appropriate role for IPM on the issue of pollinators?"
States/Regions: Mid-Atlantic, National, New England, Northeast, Southeast
18.
Weed Management Practice Selection Among Midwest U.S. Organic Growers
Publish Date: 2014-07
Author/Source: James J. DeDecker, John B. Masiunas, Adam S. Davis, and Courtney G. Flint
Description: Therefore, this study aimed to (1) characterize organic weed management systems; (2) identify motivations for, and barriers to, selection of weed management practices; and (3) generate guiding principles for effective targeting of weed management outreach
State/Region: National
19.
Preventing or Mitigating Potential Negative Impacts of Pesticides on Pollinators Using Integrated Pest Management and Other Conservation Practices
Publish Date: 2014-02
Author/Source: USDA and Xerces Society
Description: This technical note is designed to help conservation planners use the NRCS conservation planning process to prevent or mitigate pest management risks to pollinators and pollinator habitat.
States/Regions: Mid-Atlantic, National, New England, Northeast, Southeast
Diagnostic Photo
20.
Crop-Emptying Rate and the Design of Pesticide Risk Assessment Schemes in the Honey Bee and Wild Bees (Hymenoptera: Apidae)
Publish Date: 2014
Author/Source: Alice Fournie, Orianne Rollin, Violette Le Féon, Axel Decourtye, and Mickaël Henry
Description: Sublethal effects were liable to cause homing failure in forager honey bees, with possible consequences for the colony as a whole. Similarly, sublethal pesticide exposures in bumble bees might cause severe slowdown in the dynamics of colonies, with reduced queen production, brood development, and worker foraging performance. Nonetheless, investigation of sublethal effects still remains incidental in the current pesticide testing schemes, and toxicity on bees other than the honey bee is not covered in conventional risk assessment. There is uncertainty regarding the extent to which the honey bee can serve as surrogate for the many other bee species.
Diagnostic Photo
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