scholarly journals A Review of the Biology, Ecology, and Management of Plum Curculio (Coleoptera: Curculionidae)

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Timothy P Lampasona ◽  
Cesar Rodriguez-Saona ◽  
Tracy C Leskey ◽  
Anne L Nielsen
Keyword(s):  
Management Practices ◽  
Management Strategies ◽  
The United States ◽  
Conotrachelus Nenuphar ◽  
Future Directions ◽  
Geographic Ranges ◽  
Plum Curculio ◽  
Fruit Abortion ◽  
Chemical Inputs ◽  
And Control

Abstract The plum curculio, Conotrachelus nenuphar Herbst (Coleoptera: Curculionidae), is an insect native to the Americas that is a serious pest of stone and pome fruits in the United States and Canada. Failure to effectively manage this insect may result in up to 85% damaged fruit at harvest, as well as early season fruit abortion. Conotrachelus nenuphar is oligophagous, feeding and ovipositing on many Rosaceous plants, including apple, peach, plum, cherry, quince, and pear. Additionally, C. nenuphar in limited geographic ranges utilizes alternate hosts such as highbush blueberry (Ericaceae) and Muscadine grape (Vitaceae). Despite its long history as a pest, integrated pest management (IPM) lags behind similarly damaging native fruit pests. Although significant progress has been made on the identification of attractive lures for monitoring C. nenuphar adults, development of behaviorally based management strategies, and biological control with entomopathogenic nematodes, growers continue to rely heavily on top-down chemical inputs to manage this pest. Most of the research to date comes from studies done in apples where alternative management practices for C. nenuphar have, to some extent, been adopted; however, less IPM-based information is available for other susceptible crops. In this review, we summarize the history, biology, ecology, behavior, and control of C. nenuphar and future directions for IPM research.

Air Emissions from the Incineration of Hazardous Waste

1990 ◽  
Vol 6 (5) ◽  
pp. 23-51 ◽  
Author(s):  
E. Timothy Oppelt
Keyword(s):  
Hazardous Waste ◽  
Management Practices ◽  
State Level ◽  
Waste Incineration ◽  
The United States ◽  
Air Emissions ◽  
Operational Experience ◽  
Large Measure ◽  
And Control ◽  
The Impact

In the United States over the last ten years, concern over important disposal practices of the past has manifested itself in the passage of a series of federal and state-level hazardous waste cleanup and control statutes of unprecedented scope. The impact of these various statutes will be a significant modification of waste management practices. The more traditional and lowest cost methods of direct landfilling, storage in surface impoundments and deep-well injection will be replaced, in large measure, by waste minimization at the source of generation, waste reuse, physical/chemical/biological treatment, incinceration and chemical stabilization/solidification methods. Of all of the “terminal” treatment technologies, properly-designed incineration systems are capable of the highest overall degree of destruction and control for the broadest range of hazardous waste streams. Substantial design and operational experience exists and a wide variety of commercial systems are available. Consequently, significant growth is anticipated in the use of incineration and other thermal destruction methods. The objective of this paper is to examine the current state of knowledge regarding air emissions from hazardous waste incineration in an effort to put the associated technological and environmental issues into perspective.

scholarly journals MANAGEMENT OF ENDOCRINE DISEASE: Congenital adrenal hyperplasia due to 21-hydroxylase deficiency: update on the management of adult patients and prenatal treatment

2017 ◽  
Vol 176 (4) ◽  
pp. R167-R181 ◽  
Author(s):  
Anne Bachelot ◽  
Virginie Grouthier ◽  
Carine Courtillot ◽  
Jérôme Dulon ◽  
Philippe Touraine
Keyword(s):  
Congenital Adrenal Hyperplasia ◽  
Management Strategies ◽  
The United States ◽  
Fertility Treatment ◽  
Adrenal Hyperplasia ◽  
Hydroxylase Deficiency ◽  
Androgen Excess ◽  
Classic Cah ◽  
21 Hydroxylase Deficiency ◽  
And Control

Congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency is characterized by cortisol and in some cases aldosterone deficiency associated with androgen excess. Goals of treatment are to replace deficient hormones and control androgen excess, while avoiding the adverse effects of exogenous glucocorticoid. Over the last 5 years, cohorts of adults with CAH due to 21-hydroxylase deficiency from Europe and the United States have been described, allowing us to have a better knowledge of long-term complications of the disease and its treatment. Patients with CAH have increased mortality, morbidity and risk for infertility and metabolic disorders. These comorbidities are due in part to the drawbacks of the currently available glucocorticoid therapy. Consequently, novel therapies are being developed and studied in an attempt to improve patient outcomes. New management strategies in the care of pregnancies at risk for congenital adrenal hyperplasia using fetal sex determination and dexamethasone have also been described, but remain a subject of debate. We focused the present overview on the data published in the last 5 years, concentrating on studies dealing with cardiovascular risk, fertility, treatment and prenatal management in adults with classic CAH to provide the reader with an updated review on this rapidly evolving field of knowledge.

scholarly journals The Synthesis and Future Directions of Empirical Research on International Students in the United States: The Insights from One Decade

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Masha Krsmanovic
Keyword(s):  
United States ◽  
International Students ◽  
Empirical Research ◽  
International Student ◽  
The United States ◽  
Future Research ◽  
Future Directions ◽  
Academic Level ◽  
Research Questions ◽  
And Control

The purpose of this systematic review was to identify the trends in empirical research on international students in the United States produced between 2010 and 2019. After reviewing and synthesizing the characteristics of 334 research articles published over the past decade, the author identified the areas that have been overly researched and the domains that have not yet been adequately explored. The overall findings of this review indicated that recent scholarly efforts were not always aligned with the international student representation on U.S. campuses. Consequently, the author generated nine critical recommendations for future research in the field. The recommendations were produced and presented in the context of overly- and under-researched institutional sites (i.e. institutional type and control), international student populations (i.e. academic level, field of study, and country of origin), research methods employed, and research questions examined.

Developing a new regulatory paradigm to address the impacts of diffuse pollution attributable to agriculture

1999 ◽  
Vol 39 (12) ◽  
pp. 299-305 ◽  
Author(s):  
Jan McNitt ◽  
Ron Kepford
Keyword(s):  
Land Management ◽  
Environmental Protection Agency ◽  
Management Practices ◽  
Management Strategies ◽  
Pollution Abatement ◽  
The United States ◽  
Time Frame ◽  
Point Sources ◽  
Diffuse Pollution ◽  
Watershed Approach

To control pollution attributable to livestock operations, the statutory and regulatory scheme of the US Clean Water Act focuses on implementing structural controls to contain animal waste. While the United States Environmental Protection Agency (USEPA) is empowered only to regulate point sources, existing authority may be extended to regulate diffuse runoff associated with certain livestock facilities. Current water pollution abatement programs, however, have not responded to the differences inherent in diffuse pollution and the land management strategies necessary to control and abate its impacts. The Planned Intervention Micro-watershed Approach (PIMA) recognizes this distinction, offering a method of refining land management strategies while keeping existing point source pollution regulation and enforcement mechanisms in place. Within a limited time frame, producers have flexibility to develop and implement cost-effective management practices that achieve environmental goals. Planned intervention is integrated with a micro-watershed approach to watershed management which uses small, hydrologically discrete areas to target diffuse pollution sources and direct intervention efforts. This approach utilizes local stakeholder input and participation to create a bottom-up, community-based institutional framework for addressing diffuse pollution from agricultural sources that satisfies water quality objectives.

scholarly journals Reduced Midseason Pesticide Program for Control of Scab and Plum Curculio in Peach

Plant Disease ◽  
2003 ◽  
Vol 87 (6) ◽  
pp. 699-706 ◽  
Author(s):  
Z. Lan ◽  
H. Scherm ◽  
D. L. Horton
Keyword(s):  
United States ◽  
Southeastern United States ◽  
The Other ◽  
Application Time ◽  
Conotrachelus Nenuphar ◽  
Plum Curculio ◽  
Nontarget Effects ◽  
And Control ◽  
Preharvest Interval ◽  
Environmental Impact Quotient

Risks to peach production from scab (caused by Cladosporium carpophilum) and plum curculio (Conotrachelus nenuphar), two key pests in the southeastern United States, are high until 2 months past petal fall and then decreases during midseason. This suggests that reduced-input pesticide strategies may effectively control both pests during the latter period. In this study, we evaluated midseason pesticide applications according to an alternate-row middle (ARM) spray program in which sprays were applied only to every other tree row while reducing tractor speed and keeping application intervals unchanged relative to conventional spraying of both sides of the trees. In a 2-year trial in a research orchard, conventional sprays of fungicide (primarily sulfur) and insecticide (primarily phosmet) were applied at 10- to 14-day intervals until first cover, followed by continued conventional sprays of fungicide and insecticide (standard), conventional sprays of one pesticide together with ARM sprays of the other pesticide, or combined ARM sprays of both pesticides. Schedules with midseason ARM sprays of both pesticides also were evaluated in two commercial orchards in 2 years. In all experiments, plots receiving combined ARM sprays were equivalent to the standard in fruit quality and control of scab and plum curculio. Combined ARM spraying resulted in lower environmental nontarget effects (as estimated by the Environmental Impact Quotient) and reduced application time by 25 to 33% for each midseason spray and 12.5 to 18.5% for the entire period from petal fall to the preharvest interval.

scholarly journals Multicompartment Ecosystem Mass Balances as a Tool for Understanding and Managing the Biogeochemical Cycles of Human Ecosystems

2001 ◽  
Vol 1 ◽  
pp. 802-808 ◽  
Author(s):  
Lawrence A. Baker ◽  
Diane Hope ◽  
Ying Xu ◽  
Jennifer Edmonds
Keyword(s):  
Management Practices ◽  
Management Strategies ◽  
The United States ◽  
N Balance ◽  
N Leaching ◽  
Treatment Technology ◽  
Ecosystem Level ◽  
Human Ecosystems ◽  
N Management ◽  
Central Arizona

Nitrogen remains a ubiquitous pollutant in surface and groundwater throughout the United States, despite 30 years of pollution control efforts. A detailed multicompartment N balance for the Central Arizona-Phoenix ecosystem is used to illustrate how an ecosystem-level approach can be used to develop improved N management strategies. The N balance is used to demonstrate how nitrate in pumped groundwater used for crop irrigation could be used to reduce inputs of commercial fertilizer and decrease N leaching to aquifers. Effectively managing N pollution also will require an understanding of the complex factors that control the N balance, including targeted regulations, individual human behavior, land-use conversion, and other ecosystem management practices that affect the N balance. These sometimes countervailing factors are illustrated with several scenarios of wastewater treatment technology and population growth in the Phoenix area. Management of N eventually must be coupled to management of other elements, notably carbon, phosphorus, and salts. We postulate that an ecosystem framework for pollution management will result in strategies that are more effective, fairer, and less expensive than current approaches.

scholarly journals Moyamoya disease in the midwestern United States

1998 ◽  
Vol 5 (5) ◽  
pp. E3 ◽  
Author(s):  
Nicholas M. Wetjen ◽  
P. Charles Garell ◽  
Nicholas V. Stence ◽  
Christopher M. Loftus
Keyword(s):  
United States ◽  
Moyamoya Disease ◽  
Management Practices ◽  
Correct Diagnosis ◽  
Management Strategies ◽  
Superficial Temporal Artery ◽  
Age Distribution ◽  
Temporal Artery ◽  
The United States ◽  
Epidemiological Characteristics

There have been few investigations of moyamoya disease in the United States and no systematic description of the management practices or outcome from this population. The authors reviewed their experience with this disease to gain a better understanding and improve the treatment of patients with moyamoya disease in the United States. Over a 25-year period 30 patients with moyamoya disease have been treated at the University of Iowa. The cases were divided into patients who had classic, probable, and akin moyamoya disease. Results indicated that there was a bimodal age distribution and a female predominance of cases. In estimating the referral pattern of our institution, the authors determined that there were greater numbers of epidemiological characteristics than previously anticipated. Patients were treated either surgically or nonsurgically, and different management strategies were utilized in each of the major groups: superficial temporal artery to middle cerebral artery anastomosis and encephalodurosynangiosis in the surgical group; or antiplatelet, anticoagulation, or nonpharmacological intervention in the nonsurgical group. The authors conclude that there is a higher prevalence and incidence of moyamoya disease in the United States than previously reported and that there are some clinical characteristics of this disease that differ from the cases reported in southeast Asia. These differences may be due to genetic or environmental factors but can also be partly explained by the lower index of suspicion for this disease and, thus, a delay in or complete absence of the correct diagnosis.

scholarly journals Current Status of Forest Health Policy in the United States

Insects ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 106 ◽  
Author(s):  
Gandhi ◽  
Campbell ◽  
Abrams
Keyword(s):  
Native Species ◽  
Management Practices ◽  
Forest Health ◽  
The United States ◽  
Current Status ◽  
Federal Policies ◽  
Private And Public ◽  
Future Policy ◽  
Sustainability Challenges ◽  
And Control

ederal policies related to forestry and forest health (specifically, insects and diseases) have the potential to affect management practices, terms of international and interstate trade, and long-term sustainability and conservation. Our objectives were to review existing federal policies, the role of federal agencies in managing forest health, and guidance for future policy efforts. Since the 1940s, various federal policies relevant to forest health have been established, and several US Department of Agriculture (USDA) agencies have been empowered to assist with prevention, quarantine, detection, management, and control of insects and diseases. Overall, our review showed that relatively few national policies directly address forest health as a stand-alone objective, as most of them are embedded within forestry bills. Federal funding for forest health issues and the number of personnel dedicated to such issues have declined dramatically for some agencies. Concomitantly, native species continue to gain pestiferous status while non-native species continue to establish and cause impacts in the US. To enhance our ability and capacity to deal with current and future threats, concerted efforts are needed to advocate for both resources and stand-alone policy tools that take seriously the complexity of emerging sustainability challenges in both private and public forestlands.

scholarly journals Survey of cow-calf producer perspectives on management strategies and industry challenges. Part 1: handling practices, and health and industry challenges

2018 ◽  
Vol 3 (1) ◽  
pp. 195-203
Author(s):  
Miriam S Martin ◽  
Scott A Grau ◽  
Burt W Rutherford ◽  
Temple Grandin ◽  
Lily N Edwards-Callaway
Keyword(s):  
Online Survey ◽  
Management Practices ◽  
Health Management ◽  
Positive Impact ◽  
Animal Health ◽  
Management Strategies ◽  
Age Groups ◽  
The United States ◽  
Herd Health ◽  
Cow Calf

Abstract The objectives of this study were to benchmark cow-calf producer perspectives on management strategies and challenges, and to determine if demographic differences and Beef Quality Assurance (BQA) certification status influenced the frequency of certain management strategies. A total of 1,414 responses from cow-calf producers in 44 states were collected through an online survey conducted in partnership with BEEF, a producer-focused magazine. Survey recipients were asked 30 questions to gather demographic information, respondents’ current handling and health management practices, and how they prioritized industry challenges. The frequency of management methods and decisions such as preconditioning and identification methods were impacted by respondent age, operation size, location, and BQA certification (Ps ≤ 0.009). BQA-certified respondents more frequently used electronic ear tags and freeze branding (Ps = 0.009). Overall, 74.5% of respondents were preconditioning their calves. Respondents who were BQA certified more frequently preconditioned their calves (449; 81.5%) compared with those who were not BQA certified (582; 70.4%) (P < 0.001). BQA training seems to be having a positive impact on production practices. Respondents identified cow-calf health as the biggest beef industry challenge and identified land availability or price as the biggest challenge to producers’ own operation. Respondents identified bovine respiratory disease, flies, pinkeye, and reproductive health as the most important animal health issues on producers’ operations. Health challenge responses varied significantly by producer age, beef cow inventory, and region of the United States (Ps < 0.001). Calf or neonate health was most commonly identified as the biggest challenge for respondents under the age of 30 years. Producers between the ages of 55 and 70 years most commonly responded that the Veterinary Feed Directive or regulations were more of a challenge than other age groups. Respondents clearly identified managing herd health as a challenge throughout the survey. Respondents with similar herd health challenges were identified based on demographic categorization, such as age of respondent and region.

Impact of the improvements in Fusarium head blight and agronomic management on economics of winter wheat

2020 ◽  
Vol 13 (3) ◽  
pp. 423-439 ◽  
Author(s):  
R. Xia ◽  
A.W. Schaafsma ◽  
F. Wu ◽  
D.C. Hooker
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Fusarium Head Blight ◽  
Economic Impact ◽  
Management Practices ◽  
Field Experiments ◽  
Management Strategies ◽  
The United States ◽  
Head Blight ◽  
Management Scenarios

Fusarium head blight (FHB) is a devastating disease to cereal crops worldwide that decreases grain yield, grain quality, and causes mycotoxin contamination. FHB resulted in an estimated $2 billion USD loss in the US between 1993 and 2001, and 520 million Canadian dollars (CAD) in Canada in the 1990s. In the wheat producing areas in Canada and the United States, it is perceived that significant progress has been made to manage FHB, but the economic impact of various innovations has not been quantified. Therefore, the main objective of this study was to assess the economic impact of various practices deployed in the province of Ontario, Canada, on managing deoxynivalenol and improving agronomic performance in winter wheat since an epidemic in 1996. The impacts of four hypothetical FHB management scenarios on total deoxynivalenol (DON) concentration and grain yield were estimated in field experiments that compared old (mid-1990s) and modern era (mid-2010s) production practices. Management scenarios included old and new cultivars varying in susceptibility to FHB, fungicide application and nitrogen rates. These impacts were applied to farm survey data collected in 1996 to estimate farm revenue and profit. A similar economic estimate was conducted for the recent FHB epidemic in 2013. If a modern MR cultivar, a modern fungicide, and the combination were deployed in the epidemic of 1996, farm revenue would have increased by 26-32, 23-36 and 48-60%, and profit increased by 88-157, 42-59 and 165-207 CAD per ha, respectively, depending on the nitrogen rate. In the province of Ontario, up to 68 million CAD of revenue losses could have been avoided in 1996 with the use of modern agronomic and FHB management practices. Our study has quantified some of the major economic advances in managing FHB and DON since 1996, but further research is needed to develop better cultivars and management strategies.

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