scholarly journals Suitability of Various Species of Viburnum as Hosts for Pyrrhalta viburni, an Introduced Leaf Beetle

2002 ◽  
Vol 20 (4) ◽  
pp. 224-227 ◽  
Author(s):  
Paul A. Weston ◽  
Gaylord Desurmont
Keyword(s):  
United States ◽  
The United States ◽  
Leaf Beetle ◽  
Host Acceptance ◽  
Field Observations ◽  
Complete Development ◽  
Number Of Species ◽  
Introduced Pest ◽  
Pyrrhalta Viburni ◽  
Do So

Abstract Viburnum leaf beetle [(Pyrrhalta viburni (Paykull)], a newly introduced pest of viburnums in the United States, feeds selectively on plants in the genus Viburnum. We measured in the laboratory the ability of larvae of viburnum leaf beetle to complete development and propensity of adults to feed on a number of species of Viburnum ranging in susceptibility from completely susceptible to quite resistant as determined by earlier field observations. As expected, larvae completed development on viburnums rated as ‘susceptible,’ but were largely unable to do so on those rated as ‘moderately’ or ‘highly’ resistant. The pattern of host acceptance by adults was less consistent, with some adults feeding considerably on species not found to be susceptible in the field. Several accessions were not fed on at all by adults, indicating the presence of deterrent or toxic factors. Our results suggest that the species previously identified as resistant in the field are unsuitable hosts for viburnum leaf beetle, and will not likely be devastated by the pest even if all susceptible hosts are eliminated from an area.

scholarly journals Evaluation of Insecticides for Control of Larvae of Pyrrhalta Viburni, a New Pest of Viburnums

2002 ◽  
Vol 20 (2) ◽  
pp. 82-85
Author(s):  
Paul A. Weston ◽  
Brian Eshenaur ◽  
Joel M. Baird ◽  
Jana S. Lamboy
Keyword(s):  
United States ◽  
Natural Enemies ◽  
The United States ◽  
Egg Hatch ◽  
Minimal Impact ◽  
Systemic Insecticides ◽  
Introduced Pest ◽  
Pyrrhalta Viburni ◽  
Managed Landscapes ◽  
New Pest

Abstract Pyrrhalta viburni (Paykull), a newly introduced pest of viburnums in the United States, causes extensive defoliation, and eventually death, of a number of species of Viburnum commonly used in managed landscapes and occurring in native habitats. We evaluated several foliar and systemic insecticides for their ability to control the larvae of this leaf-feeding pest. Several foliar insecticides (Conserve SC, Dursban, and Pyronyl Crop Spray) significantly reduced defoliation by larvae, but the most effective products were two systemic insecticides (Merit and Meridian) that were applied before egg hatch. The ability of the soil-applied systemic products to be translocated throughout the plant, to remain active for very long durations (a year or longer), and to have minimal impact on foliar-dwelling natural enemies make them well suited for managing this pest until more sustainable forms of control can be developed.

Writing Time in Metaphors

2018 ◽  
Author(s):  
Jennifer J. Smith
Keyword(s):  
United States ◽  
The United States ◽  
Western United States ◽  
Entire System ◽  
Language And Culture ◽  
Space Race ◽  
Do So

Coherence of place often exists alongside irregularities in time in cycles, and chapter three turns to cycles linked by temporal markers. Ray Bradbury’s The Martian Chronicles (1950) follows a linear chronology and describes the exploration, conquest, and repopulation of Mars by humans. Conversely, Louise Erdrich’s Love Medicine (1984) jumps back and forth across time to narrate the lives of interconnected families in the western United States. Bradbury’s cycle invokes a confluence of historical forces—time as value-laden, work as a calling, and travel as necessitating standardized time—and contextualizes them in relation to anxieties about the space race. Erdrich’s cycle invokes broader, oppositional conceptions of time—as recursive and arbitrary and as causal and meaningful—to depict time as implicated in an entire system of measurement that made possible the destruction and exploitation of the Chippewa people. Both volumes understand the United States to be preoccupied with imperialist impulses. Even as they critique such projects, they also point to the tenacity with which individuals encounter these systems, and they do so by creating “interstitial temporalities,” which allow them to navigate time at the crossroads of language and culture.

Explosions

2018 ◽  
Author(s):  
E. Douglas Bomberger
Keyword(s):  
United States ◽  
New York ◽  
Puerto Rico ◽  
The United States ◽  
Woodrow Wilson ◽  
One Step ◽  
Do So ◽  
Laws And Regulations

On 2 April 1917, President Woodrow Wilson urged Congress to enter the European war, and Congress voted to do so on Friday, 6 April. On the 15th of that month, Victor released the Original Dixieland Jazz Band’s record of “Livery Stable Blues” and “Dixieland Jass Band One-Step”; it caused an immediate nationwide sensation. James Reese Europe travelled to Puerto Rico in search of woodwind players for the Fifteenth New York Regiment Band, and the Creole Band ended its vaudeville career when it missed the train to Portland, Maine. German musicians in the United States came under increased scrutiny in the weeks after the declaration of war, as the country prepared to adopt new laws and regulations for wartime.

scholarly journals Diasporic Foreign Policy Interest Groups in the United States: Democracy, Conflict, and Political Entrepreneurship

2021 ◽  
pp. 1-18
Author(s):  
Shubha Kamala Prasad ◽  
Filip Savatic
Keyword(s):  
United States ◽  
Foreign Policy ◽  
Interest Groups ◽  
The United States ◽  
Democratic Governance ◽  
Indian American ◽  
Two Factors ◽  
Political Entrepreneurs ◽  
Do So ◽  
Policy Interest

Why do some immigrant diasporas in the United States (U.S.) establish foreign policy interest groups while others do not? While scholars have demonstrated that diasporic interest groups often successfully influence U.S. foreign policy, we take a step back to ask why only certain diasporas attempt to do so in the first place. We argue that two factors increase the likelihood of diaspora mobilization: a community’s experience with democratic governance and conflict in its country of origin. We posit that these conditions make it more likely that political entrepreneurs emerge to serve as catalysts for top-down mobilization. To test our hypotheses, we collect and analyze novel data on diasporic interest groups as well as the characteristics of their respective countries of origin. In turn, we conduct the first in-depth case studies of the historical and contemporary Indian-American lobbies, using original archival and interview evidence.

scholarly journals Decline in Marriage Associated with the COVID-19 Pandemic in the United States

2020 ◽  
Vol 6 ◽  
pp. 237802312098032
Author(s):  
Brandon G. Wagner ◽  
Kate H. Choi ◽  
Philip N. Cohen
Keyword(s):  
United States ◽  
The United States ◽  
Cumulative Number ◽  
Short Term ◽  
Know How ◽  
The Social ◽  
Reporting Delays ◽  
Social Upheaval ◽  
Near Future ◽  
Do So

In the social upheaval arising from the coronavirus disease 2019 (COVID-19) pandemic, we do not yet know how union formation, particularly marriage, has been affected. Using administration records—marriage certificates and applications—gathered from settings representing a variety of COVID-19 experiences in the United States, the authors compare counts of recorded marriages in 2020 against those from the same period in 2019. There is a dramatic decrease in year-to-date cumulative marriages in 2020 compared with 2019 in each case. Similar patterns are observed for the Seattle metropolitan area when analyzing the cumulative number of marriage applications, a leading indicator of marriages in the near future. Year-to-date declines in marriage are unlikely to be due solely to closure of government agencies that administer marriage certification or reporting delays. Together, these findings suggest that marriage has declined during the COVID-19 outbreak and may continue to do so, at least in the short term.

scholarly journals Extinction and the U.S. Endangered Species Act

2019 ◽  
Author(s):  
Noah Greenwald ◽  
Kieran F Suckling ◽  
Brett Hartl ◽  
Loyal Mehrhoff
Keyword(s):  
United States ◽  
Endangered Species ◽  
Endangered Species Act ◽  
The United States ◽  
Species Extinction ◽  
Number Of Species ◽  
The U.S ◽  
Species Extinctions

The United States Endangered Species Act is one of the strongest laws of any nation for preventing species extinction, but quantifying the Act’s effectiveness has proven difficult. To provide one measure of effectiveness, we identified listed species that have gone extinct and used previously developed methods to update an estimate of the number of species extinctions prevented by the Act. To date, only four species have been confirmed extinct with another 22 possibly extinct following protection. Another 71 listed species are extinct or possibly extinct, but were last seen before protections were enacted, meaning the Act’s protections never had the opportunity to save these species. In contrast, a total of 39 species have been fully recovered, including 23 in the last 10 years. We estimate the Endangered Species Act has prevented the extinction of roughly 291 species since passage in 1973, and has to date saved more than 99 percent of species under its protection.

THE NOCTUIDÆ OF NORTH AMERICA AND EUROPE.: (First Paper.)

1889 ◽  
Vol 21 (7) ◽  
pp. 121-126
Author(s):  
A. R. Grote
Keyword(s):  
United States ◽  
North America ◽  
The United States ◽  
Number Of Species

We have seen in several of my previos papers that the Owlet Moths, or Noctuidœ of temperate North America, the United States and Canada, resemble most strongly those of Europe. The divergence lies chiefly in the greater number of species belonging to the Noctudiœ fasciatœ, or Catocalinœ; and this is a tropical feature, such forms becoming more plentiufl as we go southward, although Catacala, the typical genus of the group, does not seem to cross the equator, to which latter fact I have already called attention.

Erythromycin Resistance in Neonatal Staphylococcal Infection: A Long-Term Survey

1977 ◽  
Vol 22 (1_suppl) ◽  
pp. 381-387
Author(s):  
J. O. Forfar
Keyword(s):  
United States ◽  
Newborn Infants ◽  
The United States ◽  
Staphylococcal Infection ◽  
Erythromycin Resistance ◽  
Hygienic Measures ◽  
Erythromycin A ◽  
Long Term Survey ◽  
Do So

Twenty years ago staphylococcal infection was a major problem among newborn infants in hospitals. Hygienic measures had not proved very effective and the use of antibiotics, although clearly open to question, seemed a possible method of control. Erythromycin, a new antibiotic effective against staphylococci, had just been introduced but reports from the United States suggested that resistance could occur within months of usage. In trials in two hospitals in which erythromycin was not being used elsewhere, erythromycin resistance developed but took years to do so. The longer the period of usage was extended the greater the resistance. Withdrawal of the drug resulted ultimately in the disappearance of resistance. The resistant staphylococci spread throughout the hospital. The staphylococcal infection rate in the units where erythromycin was used did not fall but the mortality rate from staphylococcal infection did.

Responses by the United States to Attacks on the Rohingya in Burma

2018 ◽  
Vol 112 (2) ◽  
pp. 322-326
Keyword(s):  
United States ◽  
Human Rights ◽  
The United States ◽  
Minority Populations ◽  
Ethnic Cleansing ◽  
Marginalized Populations ◽  
Security Forces ◽  
Military Security ◽  
Women And Children ◽  
Do So

On November 22, 2017, Secretary of State Rex Tillerson released a statement addressing attacks on the Rohingya population in Burma: [T]he key test of any democracy is how it treats its most vulnerable and marginalized populations, such as the ethnic Rohingya and other minority populations. Burma's government and security forces must respect the human rights of all persons within its borders, and hold accountable those who fail to do so.… .These abuses by some among the Burmese military, security forces, and local vigilantes have caused tremendous suffering and forced hundreds of thousands of men, women, and children to flee their homes in Burma to seek refuge in Bangladesh. After a careful and thorough analysis of available facts, it is clear that the situation in northern Rakhine state constitutes ethnic cleansing against the Rohingya.

Bourdieu’s Unlikely Contribution to the Human Sciences

2018 ◽  
Author(s):  
John Levi Martin
Keyword(s):  
Social Psychology ◽  
Field Theory ◽  
United States ◽  
The United States ◽  
Gestalt Psychology ◽  
Human Sciences ◽  
Reciprocal Relations ◽  
Academic Field ◽  
Do So

Chapter abstract The author of this chapter proposes that we consider Bourdieu’s work neither on its own terms, nor in the terms of the postwar French academic field, but in terms of the general problems that it solved. When we do so, we find that Bourdieu developed lines of thinking that had stalled in Germany and the United States. The former was the field theoretic tradition associated with Gestalt psychology and empirical phenomenology; the second was the habit theoretic tradition associated increasingly with pragmatism. Each had stalled because each seemed, in a way, too successful—everything turned into habit for pragmatist social psychology; field theory also put everything indiscriminately in the field of experience. By focusing on the reciprocal relations of habitus and field, Bourdieu developed these insights in ways that allowed for empirical exploration, and that cut against the French rationalist vocabulary that he inherited.

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