Concern For Food Security Research Articles

Rabbitry and Emerging Rabbit Haemorrhagic Disease Virus in Nigeria: A Concern for Food Safety and Security

For many decades, small-scale livestock, including rabbit production, has been a veritable pro-poor poverty alleviation venture in Africa. With the rising population and increasing demand for food, the need to introduce and expand small-scale rabbit farms for long-term sustainability cannot be overemphasized. While increasing the production and commercialization of domestic rabbit production is desirable, the intensification of livestock also comes with some animal health problems. One of these is the emergence of Rabbit Haemorrhagic Disease (RHD) caused by Rabbit Haemorrhagic Disease Virus (RHDV). The virus causes sudden death in rabbits, and does not yet pose any public health risk. Symptoms of RHD may include: loss of appetite, lethargy, high fever, seizures, jaundice, bleeding from natural orifices, difficulty in breathing and sudden death. The first known outbreak of RHD in Nigeria was reported in September 2020 at rabbit farms in Kwara and Oyo States,in Nigeria. Despite several intervention strategies, the disease has continued to spread across the country. In this review, we search literature on the current state and knowledge of RHD as it affects rabbits and the economic impact on livelihood and animal health implication of this emerging viral disease on rabbit farms in Nigeria.

Social life cycle assessment in current and future Norwegian livestock production

Abstract Purpose This study is a social life cycle assessment (S-LCA) of per capita consumption of animal protein in Norway in 2019. The animal protein consisted of milk, beef, pork, poultry and egg. Based on the 2019 results, two scenarios, TrendProd and ChangeProd, were qualitatively assessed. The TrendProd scenario is a continuation of the current trend towards highly efficient livestock production, whilst ChangeProd focuses on using livestock feed based on bioresources that are unsuitable for human consumption. Methods The assessment of current livestock production followed the updated version of the social LCA guidelines by UNEP (2020). A survey amongst stakeholders was conducted for the selection of subcategories. The product system was divided into the following steps: imported feed, domestic off-farm feed, livestock production, manufacturing, distribution and use. A total of 25 subcategories across six stakeholder groups (i.e. workers, local community, society, value chain actors, consumers and children) were included in the assessment. A reference scale approach was used with a scale from 1 to 4. The assessment included quantitative and qualitative data from statistics, indices, surveys, etc. The social performance of the scenarios was assessed by the authors’ expert evaluation using the Delphi approach, comparing performance of indicators relative to the current production. Results and discussion The life cycle for the current Norwegian livestock production had an acceptable or high social performance for 17 of the selected subcategories. Five subcategories had a low performance (fair salary, equal opportunities, animal welfare, food security, promoting social responsibility) and three had a very low performance (health and safety, cultural heritage, fair competition). The assessment of the scenarios indicated that anticipated improvements in skills and technology were key drivers for maintaining or enhancing social performance in certain subcategories. The use of activity variables for measuring the relative importance of each unit process is recommended as it reflects actual distribution and is consistent with the method of environmental LCA. Conclusions Overall, the social life cycle assessment of current livestock production demonstrated high social performance. A stakeholders’ survey resulted in a new subcategory, ‘food security’, which served to include societal concern for self-sufficiency and food security in social LCA. Limitations and uncertainties of the study have also been identified, some relating to data and choice of indicators and others to the application of method, e.g. activity variables, development of reference scale and aggregation of results.

Impact of cement waste on soil fertility and crop productivity: a serious concern for food security.

The rapid expansion of urbanization and construction activities has led to a significant increase in cement production worldwide, resulting in a surge in cement waste generation. This study aims to provide a comprehensive analysis of the repercussions of cement waste on soil fertility and crop productivity, emphasizing its critical implications for global food security. Through a multidisciplinary approach, encompassing field surveys, laboratory experiments, and statistical modeling, we assess the physicochemical alterations induced by cement waste in agricultural soils. Our findings reveal substantial declines in crucial soil parameters, including pH levels, organic matter content, and nutrient availability, which directly translate into diminished crop yields. Furthermore, the study identifies key mechanisms underlying these detrimental effects, including altered microbial communities and disrupted nutrient cycling processes. In addition, the findings underscore the severity of the issue, revealing substantial declines in soil fertility and crop yields in areas affected by cement waste contamination. Additionally, we discuss potential mitigation strategies and policy interventions aimed at mitigating the adverse effects of cement waste on agricultural systems. By quantifying the extent of soil degradation and crop yield reduction attributed to cement waste, this research underscores the urgency for sustainable waste management practices and highlights the need for policy interventions to safeguard agricultural productivity and ensure global food security in the face of escalating urbanization and construction activities.

Viral pathogen detection in U.S. game-farm mallard (Anas platyrhynchos) flags spillover risk to wild birds.

The threat posed by emerging infectious diseases is a major concern for global public health, animal health and food security, and the role of birds in transmission is increasingly under scrutiny. Each year, millions of mass-reared game-farm birds are released into the wild, presenting a unique and a poorly understood risk to wild and susceptible bird populations, and to human health. In particular, the shedding of enteric pathogens through excrement into bodies of water at shared migratory stop-over sites, and breeding and wintering grounds, could facilitate multi-species long-distance pathogen dispersal and infection of high numbers of naive endemic birds annually. The Mallard (Anas platyrhynchos) is the most abundant of all duck species, migratory across much of its range, and an important game species for pen-rearing and release. Major recent population declines along the US Atlantic coast has been attributed to game-farm and wild mallard interbreeding and the introduction maladaptive traits into wild populations. However, pathogen transmission and zoonosis among game-farms Mallard may also impact these populations, as well as wildlife and human health. Here, we screened 16 game-farm Mallard from Wisconsin, United States, for enteric viral pathogens using metatranscriptomic data. Four families of viral pathogens were identified - Picobirnaviridae (Genogroup I), Caliciviridae (Duck Nacovirus), Picornaviridae (Duck Aalivirus) and Sedoreoviridae (Duck Rotavirus G). To our knowledge, this is the first report of Aalivirus in the Americas, and the first report of Calicivirus outside domestic chicken and turkey flocks in the United States. Our findings highlight the risk of viral pathogen spillover from peri-domestically reared game birds to naive wild bird populations.

Mitigating fungal contamination of cereals: The efficacy of microplasma-based far-UVC lamps against Aspergillus flavus and Fusarium graminearum

Fungal contaminations of cereal grains are a profound food-safety and food-security concern worldwide, threatening consumers’ and animals’ health and causing enormous economic burdens. Because far-ultraviolet C (far-UVC) light at 222 nm has recently been shown to be human-safe, we investigated its efficacy as an alternative to thermal, chemical, and conventional 254 nm UVC anti-fungal treatments. Our microplasma-based far-UVC lamp system achieved a 5.21-log reduction in the conidia of Aspergillus flavus suspended in buffer with a dose of 1032.0 mJ/cm2, and a 5.11-log reduction of Fusarium graminearum conidia in suspension with a dose of 619.2 mJ/cm2. We further observed that far-UVC treatments could induce fungal-cell apoptosis, alter mitochondrial membrane potential, lead to the accumulation of intracellular reactive oxygen species, cause lipid peroxidation, and result in cell-membrane damage. The lamp system also exhibited a potent ability to inhibit the mycelial growth of both A. flavus and F. graminearum. On potato dextrose agar plates, such growth was completely inhibited after doses of 576.0 mJ/cm2 and 460.8 mJ/cm2, respectively. To test our approach’s efficacy at decontaminating actual cereal grains, we designed a cubical 3D treatment chamber fitted with six lamps. At a dose of 780.0 mJ/cm2 on each side, the chamber achieved a 1.88-log reduction of A. flavus on dried yellow corn kernels and a 1.11-log reduction of F. graminearum on wheat grains, without significant moisture loss to either cereal type (p > 0.05). The treatment did not cause significant changes in the propensity of wheat grains to germinate in the week following treatment (p > 0.05). However, it increased the germination propensity of corn kernels by more than 71% in the same timeframe (p < 0.05). Collectively, our results demonstrate that 222 nm far-UVC radiation can effectively inactivate fungal growth in liquid, on solid surfaces, and on cereal grains. If scalable, its emergence as a safe, cost-effective alternative tool for reducing fungi-related post-harvest cereal losses could have important positive implications for the fight against world hunger and food insecurity.

Information and communication technology in smart agriculture: A scientometric review

SummaryAgriculture has been affected by several global trends raising the concern for food security. Agri‐food demands are amplifying due to the ever‐escalating population numbers. Thus, the notion of extending the use of smart innovative technology in managing agricultural practices has emerged rapidly over the last decade. Technological innovations have contributed significantly to shape modern agriculture as smart agriculture. Smart agriculture unfolds various benefits such as increased production, real time data and production insights and remote monitoring. The rising advancements in Information and Communication Technologies (ICT) have paved the way for researchers to use these technologies in managing agricultural practices, leading to greater benefits for farmers and society. These innovations are the key to establishing agriculture as a research discipline. The purpose of this article is to conduct a scientometric analysis to study the structure and evolution of research activities in the field of smart agriculture. The scientometric analysis aims to empirically map the scientific knowledge and identify any possible challenges in the field. This study performs elementary analysis to study publication growth over the years, impact analysis to assess the leading journals, authors, and countries, and articles analysis for findings patterns among the citations over the years and among the keyword‐based clusters. There has been a considerable increase of more than 200% in the number of publications from 2011 to 2022. However, around 60% of authors have contributed with a single publication. The findings of the study reveal the research trends and hot topics for future research fronts. Deep learning, digital agriculture, object detection, blockchain, and semantic segmentation have been identified as trending topics in smart agriculture. Comprehensively, an intellectual view of the agriculture domain is presented as a scientific field in this article.

Advances in Understanding Fusarium graminearum: Genes Involved in the Regulation of Sexual Development, Pathogenesis, and Deoxynivalenol Biosynthesis.

The wheat head blight disease caused by Fusarium graminearum is a major concern for food security and the health of both humans and animals. As a pathogenic microorganism, F. graminearum produces virulence factors during infection to increase pathogenicity, including various macromolecular and small molecular compounds. Among these virulence factors, secreted proteins and deoxynivalenol (DON) are important weapons for the expansion and colonization of F. graminearum. Besides the presence of virulence factors, sexual reproduction is also crucial for the infection process of F. graminearum and is indispensable for the emergence and spread of wheat head blight. Over the last ten years, there have been notable breakthroughs in researching the virulence factors and sexual reproduction of F. graminearum. This review aims to analyze the research progress of sexual reproduction, secreted proteins, and DON of F. graminearum, emphasizing the regulation of sexual reproduction and DON synthesis. We also discuss the application of new gene engineering technologies in the prevention and control of wheat head blight.

Transformative Ecological and Human Impacts from Diminished Sea Ice in the Northern Bering Sea

Abstract Our goal is to tie climate-scale meteorology to regional physics and ecosystem changes and demonstrate a few resulting impacts to which regional peoples are having to respond in the Alaskan Bering Strait region. The sea ice loss events in the winters of 2017/18 and 2018/19 initiated a series of marine environmental, ecological, and industrial changes through a chain of connected events from jet-stream meanders, storms, southerly winds, warmer sea temperatures, and minimum sea ice cover. Resulting impacts continue as coastal communities respond to ongoing nutritional, cultural, and economic challenges. Global warming potentially initiated these events through a weakened atmospheric Arctic Front. Ecological shifts included a transition/reorganization of the Bering Strait regional marine ecosystem. Subsequent changes included shifts in zooplankton species, increases in large-bodied, predatory fish species moving northward, an ice seal unusual mortality event, and seven consecutive years of multispecies seabird die-offs. These changes in the marine ecosystem create a serious food security concern. Ongoing impacts include large, toxic harmful algal blooms and coastal erosion. Recent changes to the maritime industries of the transboundary waters of the Bering Strait include increased industrial ship traffic, planned development of the Port of Nome, and northward proximity of foreign fishing activity. Projections for the next decades are for an increasing frequency of low sea ice years and continuing ecosystem and industrial transitions that contribute to increasing economic and food security concerns for the 16 coastal communities that compose the Bering Strait region. Significance Statement Extreme events in the atmosphere/oceans and resultant record sea ice minimums in 2018 and 2019 were manifested in marine ecosystem transitions and maritime industry impacts. This led to ongoing concerns over the food safety and food security of marine resources essential to the nutritional, cultural, and economic well-being of Alaskan coastal communities of the Bering Strait region. Persistent weakening of the Arctic Front may signal an increased frequency of low sea ice events into the next decades.

Oral administration of phytochemicals protects honey bees against cognitive and motor impairments induced by the insecticide fipronil.

Pollution produced by exposure to pesticides is a major concern for food security because the negative impacts on pollinators. Fipronil, an insecticide broadly used around the globe has been associated with the ongoing decline of bees. With a characteristic neuroactive toxicodynamic, fipronil leads to cognitive and motor impairments at sublethal dosages. Despite of regional bans, multilevel strategies are necessary for the protection of pollinators. Recent evidence suggests that specific nutrients in the diets of bees may induce protection against insecticides. Here, we evaluated whether the administration of three phytochemicals, namely rutin, kaempferol and p-coumaric acid provide protection to the Africanized honey bee Apis mellifera against oral administration of realistic dosages of fipronil. We tested the potential impairment produced by fipronil and the protection induced by the phytochemicals in learning, 24h memory, sucrose sensitivity and motor control. We found that the administration of fipronil induced a concentration-dependent impairment in learning and motor control, but not 24h memory or sucrose sensitivity across a 24h window. We also found that the administration of rutin, p-coumaric acid, kaempferol and the mixture was innocuous and generally offered protection against the impairments induced by fipronil. Overall, our results indicate that bees can be prophylactically protected against insecticides via nutrition, providing an alternative to the ongoing conflict between the use of insecticides and the decline of pollinators. As the studied phytochemicals are broadly present in nectar and pollen, our results suggest that the nutritional composition, and not only its production, should be considered when implementing strategies of conservation via gardens and co-cropping.

The spike protein of the apathogenic Beaudette strain of avian coronavirus can elicit a protective immune response against a virulent M41 challenge.

The avian Gammacoronavirus infectious bronchitis virus (IBV) causes major economic losses in the poultry industry as the aetiological agent of infectious bronchitis, a highly contagious respiratory disease in chickens. IBV causes major economic losses to poultry industries across the globe and is a concern for global food security. IBV vaccines are currently produced by serial passage, typically 80 to 100 times in chicken embryonated eggs (CEE) to achieve attenuation by unknown molecular mechanisms. Vaccines produced in this manner present a risk of reversion as often few consensus level changes are acquired. The process of serial passage is cumbersome, time consuming, solely dependent on the supply of CEE and does not allow for rapid vaccine development in response to newly emerging IBV strains. Both alternative rational attenuation and cell culture-based propagation methods would therefore be highly beneficial. The majority of IBV strains are however unable to be propagated in cell culture proving a significant barrier to the development of cell-based vaccines. In this study we demonstrate the incorporation of a heterologous Spike (S) gene derived from the apathogenic Beaudette strain of IBV into a pathogenic M41 genomic backbone generated a recombinant IBV denoted M41K-Beau(S) that exhibits Beaudette's unique ability to replicate in Vero cells, a cell line licenced for vaccine production. The rIBV M41K-Beau(S) additionally exhibited an attenuated in vivo phenotype which was not the consequence of the presence of a large heterologous gene demonstrating that the Beaudette S not only offers a method for virus propagation in cell culture but also a mechanism for rational attenuation. Although historical research suggested that Beaudette, and by extension the Beaudette S protein was poorly immunogenic, vaccination of chickens with M41K-Beau(S) induced a complete cross protective immune response in terms of clinical disease and tracheal ciliary activity against challenge with a virulent IBV, M41-CK, belonging to the same serogroup as Beaudette. This implies that the amino acid sequence differences between the Beaudette and M41 S proteins have not distorted important protective epitopes. The Beaudette S protein therefore offers a significant avenue for vaccine development, with the advantage of a propagation platform less reliant on CEE.

A comprehensive assessment of yield loss in rice due to surface ozone pollution in India during 2005–2020: A great concern for food security

CONTEXTAbout 60% of the world population relies primarily on rice as their staple food, and India ranks second in terms of global rice production. Studies have shown the adverse impact of surface ozone pollution on agriculture, particularly the yield loss (YL) of major staple crops. OBJECTIVE(i) To assess the bias associated with ozone data used for YL estimation, (ii) to find the uncertainties in ozone exposure/crop-response methods applied for computing YL and (iii) to analyse the spatio-temporal variability of YL in rice due to surface ozone in India for the period 2005–2020 to assess food security of the country. METHODSWe use the Tropospheric Emission Spectrometer chemical reanalysis (TCR-2) surface ozone data and the ozone exposure/crop-response functions to compute YL in rice. RESULTS AND CONCLUSIONSBy using the AOT40 crop-response method, we find a crop production loss (CPL) of about 7.39 million tonnes (Mt) of rice in 2005, which increased to 11.46 Mt. in 2020. The estimated average CPL for the study period is sufficient to feed about 233 million people per year. It also has incurred an economic loss of about $2.92 billion in 2020. SIGNIFICANCEAtmospheric pollution must be reduced to protect crop health and ensure food security, as evidenced by the two-fold rise of YL in rice due to ozone pollution during the past decade in India. This is also applicable to all agrarian economies of the world with high atmospheric pollution; reiterating the global significance of this study.

Experimental Infection of Bundibugyo Virus in Domestic Swine Leads to Viral Shedding with Evidence of Intraspecies Transmission

The Ebolavirus genus contains several of the deadliest zoonotic viruses known. One of these, Bundibugyo virus (BDBV), has been the causative agent of two outbreaks of human disease that have resulted in 211 known cases with a case fatality rate of 33.6%. Although bats are routinely implicated as the possible reservoir species for the ebolaviruses, the source of infection for index cases in almost all outbreaks is unknown with only limited epidemiological evidence directly linking human cases to bats. This lack of evidence leaves open the possibility that maintenance of one or more of these viruses could involve multiple host species or more complex spillover dynamics. Domestic pigs have been found naturally infected with Reston virus (RESTV) and are experimentally susceptible to infection with Ebola virus (EBOV), two other members of the Ebolavirus genus. Infection of pigs resulted in shedding of infectious virus with subsequent transmission to naïve animals being documented, including transmission to humans for RESTV and to nonhuman primates for EBOV. The susceptibility and subsequent viral shedding and pathogenesis of domestic pigs to other ebolaviruses and the potential role this species may play in virus ecology, spillover dynamics, and human public health risk is unknown. For these reasons, we conducted a series of studies aimed at determining the susceptibility of domestic pigs to BDBV thereby demonstrating that pigs are not only susceptible to experimental infection but that the development of productive infection, tissue dissemination, and shedding of infectious virus can also occur while animals remain clinically normal. The role of pigs as a possible interim or amplifying host for ebolaviruses is a concern for both human public health and food security.

One-pot Golden Gate Assembly of an avian infectious bronchitis virus reverse genetics system.

Avian infectious bronchitis is an acute respiratory disease of poultry of particular concern for global food security. Investigation of infectious bronchitis virus (IBV), the causative agent of avian infectious bronchitis, via reverse genetics enables deeper understanding of virus biology and a rapid response to emerging variants. Classic methods of reverse genetics for IBV can be time consuming, rely on recombination for the introduction of mutations, and, depending on the system, can be subject to genome instability and unreliable success rates. In this study, we have applied data-optimized Golden Gate Assembly design to create a rapidly executable, flexible, and faithful reverse genetics system for IBV. The IBV genome was divided into 12 fragments at high-fidelity fusion site breakpoints. All fragments were synthetically produced and propagated in E. coli plasmids, amenable to standard molecular biology techniques for DNA manipulation. The assembly can be carried out in a single reaction, with the products used directly in subsequent viral rescue steps. We demonstrate the use of this system for generation of point mutants and gene replacements. This Golden Gate Assembly-based reverse genetics system will enable rapid response to emerging variants of IBV, particularly important to vaccine development for controlling spread within poultry populations.

Transformative Potential: A Comprehensive Analysis of China-Pakistan Agricultural Cooperation under CPEC

Given the persistent concern of global food security, particularly in developing nations where agricultural sectors faces various challenges, the increasing collaboration between China and Pakistan under China-Pakistan Economic Corridor (CPEC) presents an interesting case study for agricultural cooperation. This research explores the partnership, examining its evolution, potential, and inherent challenges. The analysis maps out the growth of bilateral trade between China and Pakistan from 2011 to 2019, analyzing policy frameworks, and explores the diverse fields of cooperation, including infrastructure, product processing, machinery, and information exchange. While highlighting promising prospects, it identifies challenges such as low enterprise competitiveness, limited information exchange, and political risks, all considered in the context of CPEC and the Belt and Road Initiative (BRI). It emphasizes the transformative potential of China-Pakistan agricultural cooperation under CPEC, underscoring the importance of comprehensive planning and strategic approaches to maximize mutual benefits in the domain of international agricultural collaboration.

A Comprehensive Review of Peste Des Petits Ruminants Virus (PPRV) Infection of Small Ruminant and Potential Treatment with Various Plant Extracts

Peste des petits ruminants (PPR) is caused by a morbillivirus from the Paramyxoviridae family. PPR is an acute, highly contagious, and deadly disease that mostly affects goats and sheep, with cattle experiencing subclinical infection. The Peste des petits ruminants virus (PPRV) causes the sickness. Given the importance of sheep and goats in the livelihoods of poor and marginal farmers in Africa and South Asia, PPR is a key concern for food security and poverty alleviation. Morbilliviruses PPR virus (PPRV) and render pest virus (RPV) are closely related. This virus can be transmitted from infected animals to vulnerable animals by inhaled aerosols or clinical excretions. PPR symptoms included pyrexia, stomatitis, diarrhoea, ulcerative lesions, and oculo-nasal discharge. This review summarises current advances in PPRV replication, pathology, immunological response to vaccines, and disease control. Attempts have also been made to emphasise current developments in understanding host sensitivity and resistance to PPR, as well as the prevalence of the virus throughout the world and its treatment through the use of various plant materials.

Distribution of cadmium and lead in soil–rice systems and their environmental driving factors at the island scale

Toxic elements, such as Cd and Pb are of primary concern for soil quality and food security owing to their high toxicity and potential for bioaccumulation. Knowledge of the spatial variability of Cd and Pb in soil–rice systems across the landscape and identification of their driving factors are prerequisites for developing appropriate management strategies to remediate or regulate these hazardous contaminants. Considering the role of rice (Oryza sativa) as a dietary staple in China, this study aimed to examine the distribution patterns and drivers of Cd and Pb in tropical soil–rice systems across Hainan Island. To achieve this goal, 229 pairs of representative paddy soil and rice samples combined with a set of environmental covariates at the island scale were systematically analyzed. Arithmetic mean values (AMs) of Cd and Pb in rice were 0.080 and 0.199 mg kg−1, and exceeded the standard limits by 27.1% and 22.7%, respectively. We found that the AMs of Cd and Pb concentrations in paddy soil were 0.294 and 43.0 mg kg−1. Additionally, Cd in 29.26% of soil samples and Pb in 11.35% of soil samples exceeded the risk screening value for toxic elements. The enrichment factor generally showed that soil Cd and Pb on Hainan Island were both moderately enriched. Results obtained from both Spearman's correlation and stepwise regression analyses suggest that the concentrations of soil Cd and Pb are significantly influenced by the soil Na and Fe concentrations. Specifically, an increment of 1 g kg−1 in soil Na caused a rise of soil Cd and Pb by 57.1 mg kg−1 and 34.4 mg kg−1, respectively, while an increase of 1 g kg−1 in soil Fe resulted in a rise by 25.0 mg kg−1 and 14.5 mg kg−1. Similarly for rice grains, an increment of 1 g kg−1 in soil Ca resulted in a rise of rice Pb by 30.8 mg kg−1, whereas an increase of 1 g kg−1 in soil Mg led to a decrease in rice Pb by 14.8 mg kg−1. However, no significant correlation between soil Se and rice Cd concentrations was found. Furthermore, the result of geographically weighted regression revealed that the impacts of soil Na, Ca, Fe, and Mg on rice Cd were more significant in the western region, whereas the effects of soil Na and Fe on rice Pb were stronger in the northeastern region. This study provides new insights for the identification of factors influencing the distribution and accumulation of Cd and Pb in tropical island agroecosystems.

Environmental factors affecting honey bees (Apis cerana) and cabbage white butterflies (Pieris rapae) at urban farmlands.

Rapid urbanization results in a significantly increased urban population, but also the loss of agricultural lands, thus raising a concern for food security. Urban agriculture has received increasing attention as a way of improving food access in urban areas and local farmers' livelihoods. Although vegetable-dominant small urban farmlands are relatively common in China, little is known about environmental factors associated with insects that could affect ecosystem services at these urban farmlands, which in turn influences agricultural productivity. Using Asian honey bee (Apis cerana) and cabbage white butterfly (Pieris rapae) as examples, I investigated how environmental features within and surrounding urban farmlands affected insect pollinator (bee) and pest (butterfly) abundance in a megacity of China during winters. I considered environmental features at three spatial scales: fine (5 m-radius area), local (50 m-radius area), and landscape (500 m-raidus and 1 km-radius areas). While the abundance of P. rapae increased with local crop diversity, it was strongly negatively associated with landscape-scale crop and weed covers. A. cerana responded positively to flower cover at the fine scale. Their abundance also increased with local-scale weed cover but decreased with increasing landscape-scale weed cover. The abundance of A. cerana tended to decrease with increasing patch density of farmlands within a landscape, i.e., farmland fragmentation. These results suggest that cultivating too diverse crops at urban farmlands can increase crop damage; however, the damage may be alleviated at farmlands embedded in a landscape with more crop cover. Retaining a small amount of un-harvested flowering crops and weedy vegetation within a farmland, especially less fragmented farmland can benefit A. cerana when natural resources are scarce.

Supporting Low-Income Workers to Address Nutritional Needs

Summary Elevance Health set out to determine the impact of a custom, incremental social benefit program offered to low-income employees; the program featured access to a narrow network of providers plus access to in-kind nutritional support, with the goal of enhancing food security, quality of diet, and self-reported health. Elevance designed a retrospective longitudinal cohort study comparing responses to three surveys conducted through calendar year 2021 between employees enrolled in the social benefit (with an income of less than $42,500) and those who waived the benefit or marginally missed eligibility (income range $42,500–$62,500); this included 1,837 Elevance employees (1,583 in the treatment group and 254 in the control group). The survey outcomes included employees’ self-reported food security, financial security, quality of diet, and health status. Among the treatment group, 413 of 1,583 (26.1%), reported improvement in food security (concern that their food would run out before they got money to buy more), which was more than double the 12.6% who reported improvement among the 254 Elevance employees in the control group. There was less variation between groups when respondents assessed their health in general: 280 of 1,583 (17.7%) of the benefit group indicated improvement between the March and December 2021 surveys, whereas 37 of 254 (14.6%) in the control group reported improvement. Of note, 257 (16.2%) of the treatment group reported a decline in their overall health, whereas 41 (16.1%) of the control group reported a decline.

A Review on Fall Armyworm (Spodoptera frugiperda) Insecticide Resistance

The commonly known fall armyworm (Spodoptera frugiperda) is an important pest of corn, cotton, and other crops in the Americas, Africa, and Asia. The species is native to tropical and subtropical regions of the Americas, but it has spread to other parts of the world in recent years. The pest has a wide host range, including important crops like corn, cotton, rice, sorghum, and vegetables. Large populations of fall armyworms can cause significant damage to crops, leading to reduced yields and lower crop quality. The threat of insecticide resistance in S. frugiperda is a growing concern for agricultural production and food security. Insecticides are an important tool for managing fall armyworm populations, but the development of resistance to these chemicals has become a major issue in many regions. This pest has shown resistance to several classes of insecticides, including pyrethroids, organophosphates, and carbamates. To effectively manage insecticide resistance in S. frugiperda populations, it is important to consider these factors and develop integrated pest management strategies that take them into account. This may include the use of alternative control methods, such as biological control and cultural control, and the judicious use of insecticides to minimize selection pressure for resistance development. It is important for farmers, researchers, and policymakers to work together to develop and implement integrated pest management strategies that can effectively manage S. frugiperda populations while minimizing the development and spread of insecticide resistance. Keywords: Fall Armyworm, Spodoptera frugiperda, Insecticide Resistance

Strah potrošnikov glede prehranske varnosti v Sloveniji v obdobju prvega vala COVID-19 krize

Raznovrstne krize znatno vplivajo na celoten prehranski sektor in spreminjajo stališča Evropejcev in politik o pomenu prehranske varnosti, trajnostno pridelane, kakovostne in varne hrane za zdravje potrošnikov. Prispevek se osredotoča na strah glede prehranske varnosti v času prvega vala COVID-19 krize v Sloveniji, na z njim povezan strah glede prehranske varnosti v prihodnje in na spremembe potrošnih vedenj. Spletno anketiranje je bilo v Sloveniji izvedeno v juniju 2020 na način »snežene kepe« in je zajelo 490 posameznikov. Rezultati so pokazali, da sta obe merjeni obliki strahu (i) strah o prehranski varnosti med prvim valom COVID-19 krize in (ii) strah o prehranski varnosti v prihodnosti statistično značilno, srednje močno in pozitivno povezani s skoraj vsemi samozaznanimi spremembami lastnega vedenja zaradi pojava COVID-19 krize. Anketiranci so se najbolj osredotočili na nakup živil, ki so pridelana in predelana v Sloveniji, na ustvarjanje večjih prehranskih zalog ter na večjo pazljivost pri tem, koliko hrane zavržejo. Zgolj manjše spremembe pa so izrazili glede nakupnih kanalov, pri čemer so neposredno od kmetov pogosteje nakupovali starejši, višje izobraženi in ti, ki se samouvrščajo v višji družbeni razred. V prihodnje bi bilo treba vključiti reprezentativen vzorec in primerjati rezultate z rezultati v drugih državah in podrobneje analizirati vpliv posameznikovega ekonomskega položaja in vpliv promocijskih kampanj na spremembo potrošnih vedenj.