Green Bridge Research Articles

Nature positive infrastructure - habitat connectivity structures, a call to arms

‘Linear infrastructure, including the Strategic Road Network, fragments habitats and landscapes creating impassable barriers for flora and fauna. Where populations of animals can’t move from their home ranges they become isolated and vulnerable to local extinction through disease, extreme events and inbreeding. Isolation of habitats also makes them increasingly vulnerable to extinction from climate change. In the UK habitat connectivity structures that restore species movement and physical connection of habitats, such as green-bridges, mammal tunnels and underpasses are rare. Although, they are becoming increasingly common due to planning consent requirements. Nevertheless, on the 4,500 miles of Strategic Road Infrastructure in England habitat connectivity features are still few and far between. Mass restoration of habitat connectivity across a Strategic Nature Network and using wildlife crossing structures would be transformative for the UK public as well as our ecosystems. The UK is decades behind other nations in the application of habitat defragmentation structures. In the last 15 years the Dutch transport authority have built approximately 70 large green bridges and approximately 200 smaller interventions across its road and rail network, at time of writing National Highways have built 2. Designing and constructing structures for wildlife, as well as people, on a scale that will make meaningful difference to UK nature will require our industry to unite and innovate to deliver a lasting legacy of nature restoration.‘

Pastoral grasses and legumes as potential host plants for fall armyworm Spodoptera frugiperda (J.E. Smith) development.

The fall armyworm, Spodopterafrugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is a highly polyphagous, migratory pest native to the tropical and subtropical region of Americas. Grass crops particularly corn have been most heavily impacted since S. frugiperda invaded Australia in 2020. In northern Western Australia, S. frugiperda is primarily a problem in dry season (May to October) crops when there are abundant host plants available in monocultures. During the wet season (November to April) it is not known what host plants may support larval growth and development. Accordingly, this present study undertook a no-choice feeding bioassay to assess larval and pupal development on several grasses and legumes that are present over the wet season in northern Western Australia to evaluate their potential as suitable host plants for S. frugiperda. Maize (control) and sorghum were the most suitable hosts for S. frugiperda development as they supported greater larval and pupal survival, heavier larvae and pupae, and shorter development period. Following maize and sorghum, pastoral grasses, particularly blue grass, and a weedy grass, barnyard grass, had comparable effects on larval and pupal development. Legume pastures (Cavalcade, butterfly pea, and siratro) were unsuitable hosts in this bioassay as very few larvae completed their development to adults. This study demonstrates the potential for rangeland pasture grasses and weedy grasses as wet season host plants for S. frugiperda. They provide the necessary green bridge for S. frugiperda populations to survive. It is recommended that pastoralists monitor their grass forage for S. frugiperda and consider management if significant reductions in biomass are detected.

The importance and challenges of a precise diagnosis for IPM: seeing the problem from different perspectives within the soybean-corn production system

One of the keystones for successful IPM is a precise diagnosis. Identifying and quantifying the culprit triggering the problem is crucial for making a decision based on injury level, plant tolerance, and potential strategies to mitigate losses. Recently, growers complained that crickets were damaging their soybean crops. However, after analyzing the injured fields in more detail, mice were identified as being responsible for the recorded injuries. The occurrence of crop injuries caused by mice is not restricted to soybean fields but has also been reported for corn fields. In this report, we illustrate the importance of a precise diagnosis to avoid unnecessary and inadequate use of chemicals when applying IPM. Moreover, we call attention to the importance of avoiding harvest losses, especially for soybean and maize crops. Lost corn cobs from the previous crop season between soybean plants attract mice in the area and therefore are a major trigger for injuries to soybean pods. Thus, reducing harvest losses is the best way to manage the green bridge and mitigate the problem herein discussed.

Placing Green Bridges Optimally, with a Multivariate Analysis

We study the problem of placing wildlife crossings, such as green bridges, over human-made obstacles to challenge habitat fragmentation. The main task herein is, given a graph describing habitats or routes of wildlife animals and possibilities of building green bridges, to find a low-cost placement of green bridges that connects the habitats. We develop three problem models for this task and study them from a computational complexity and parameterized algorithmics perspective.

Green Trade Opportunities and Challenges within the Belt and Road Initiative

The Belt and Road Initiative (BRI) presents new opportunities for global sustainable development, with a particular emphasis on promoting green trade. Green trade not only contributes significantly to economic growth in participating countries but also strives to balance environmental protection with efficient resource utilization. However, the development of green trade faces formidable challenges, including inadequate policy implementation, difficulties in technology transfer, and inherent conflicts between environmental conservation and economic interests. This study critically examines the successes and lessons learned from two key projects: the China-Europe Green Bridge Project and Pakistan's Karot Hydropower Project. The findings highlight that effective collaboration between China and Europe in policy coordination, green technology transfer, and financial support played a pivotal role in the success of the China-Europe Green Bridge Project. In contrast, deficiencies in policy execution, technological-adaptation mismatches, and socio-environmental conflicts contributed to the challenges faced by the Karot Hydropower Project. Building on these insights, the study proposes several strategic recommendations. These include conducting comprehensive, country-specific studies, quantitative analyses, and interdisciplinary research to enhance policy coherence, deepen international cooperation, strengthen financial support for green initiatives, and bolster environmental impact assessments and regulatory frameworks. These measures are aimed at advancing green trade under the BRI and fostering sustainable development on a global scale.

Localised Perceptions of Large-Scale Active Transport Infrastructure: Resident Attitudes Towards Pedestrian and Cyclist-Only Bridges on the Gold Coast, Australia

ABSTRACT Large-scale active transport infrastructure is essential to connect walking and cycling networks severed by physical impediments (e.g. waterways and motorways). Yet, implementations in car-centric urban areas have experienced localised ‘bikelash’ and Not-in-my-backyard (NIMBY) resistance. Our mixed-method, cross-sectional study from the Gold Coast, Australia, identified positive sentiments towards green bridge implementations within the broader urban area. However, support for future bridge implementations decreased with proximity to respondents’ homes. State and local governments planning new facilities must account for this geographical discounting effect, where residents want to reside near active transport infrastructure to derive benefit from them, but not too close.

A Green Bridge: Enhancing a Multi-Pesticide Test for Food by Phase-Transfer Sample Treatment Coupled with LC/MS.

The preparation and treatment of the sample has become an important part of the determination process, which directly affects the accuracy of detection. The preparation of the sample for final detection is actually a process of separation and transfer of the target to be tested from the sample matrix. The phase-transfer process of analysis and detection is the process of transferring the target substance to be measured from a complex multiphase system to a simple homogeneous system. This study shows a new phase-transfer process for food sample pretreatment in the determination of carbamate pesticides. Edible gum, xanthan gum, carrageenan, and gelatin were selected for purification testing from the perspective of eco-friendliness and safety. Phase-transfer purification process research was carried out on spinach and other foods. Compared with the commonly used QuEChERS method, the LC/MS results indicate that the straightforward carrageenan treatment process can significantly diminish the detection matrix effect and yield similarly superior detection parameters. The phase-transfer purification method with carrageenan has similar sensitivity and systematic error. The limits of detection and limits of quantitation of each pesticide compound in six plant sample substrates were 0.02-0.36 μg/kg and 0.06-1.9 μg/kg, respectively, which were lower than the residue limits here and abroad. Supplemental recoveries in six blank samples at 5, 20, and 100 μg/kg with the phase-transfer process method were better than those for the QuEChERS method. Positive determination results of actual samples using carrageenan phase-transfer purification proved that this method can be used for related detection from a practical point of view.

Comprehensive Evaluation of Green Bridge Construction Based on a Game Theory–Radar Chart Combination

The construction of large bridges requires significant natural resource consumption and causes widespread environmental damage, violating the concept of sustainable development. Therefore, it is necessary to build a comprehensive evaluation system for green construction. This paper took a bridge as a research object to establish a green construction evaluation index system based on GB/T 50640-2010, the “Green Construction Evaluation Standard for Construction Projects”. A combined game theory–radar chart method was adopted to evaluate the level of green construction for five construction schemes. The results were Scheme II > Scheme IV > Scheme III > Scheme I > Scheme V, where Scheme II was the best. The evaluations in this paper were consistent with those obtained by the G1-TOPSIS method; however, a combined-assignment method was used to avoid the one-sidedness of single-assignment, and to make the evaluations more objective.

The importance of biomass in sustainable agricultural soil management

The importance of biomass in sustainable agricultural soil management

Multifactorial Evaluation of Spatial Suitability and Economic Viability of Light Green Bridges Using Remote Sensing Data and Spatial Urban Planning Criteria

Multi-faceted stresses of social, environmental, and economic nature are increasingly challenging the existence and sustainability of our societies. Cities in particular are disproportionately threatened by global issues such as climate change, urbanization, population growth, air pollution, etc. In addition, urban space is often too limited to effectively develop sustainable, nature-based solutions while accommodating growing populations. This research aims to provide new methodologies by proposing lightweight green bridges in inner-city areas as an effective land value capture mechanism. Geometry analysis was performed using geospatial and remote sensing data to provide geometrically feasible locations of green bridges. A multi-criteria decision analysis was applied to identify suitable locations for green bridges investigating Central European urban centers with a focus on German cities as representative examples. A cost-benefit analysis was performed to assess the economic feasibility using a case study. The results of the geometry analysis identified 3249 locations that were geometrically feasible to implement a green bridge in German cities. The sample locations from the geometry analysis were proved to be validated for their implementation potential. Multi-criteria decision analysis was used to select 287 sites that fall under the highest suitable class based on several criteria. The cost-benefit analysis of the case study showed that the market value of the property alone can easily outweigh the capital and maintenance costs of a green bridge, while the indirect (monetary) benefits of the green space continue to increase the overall value of the green bridge property including its neighborhood over time. Hence, we strongly recommend light green bridges as financially sustainable and nature-based solutions in cities worldwide.

The ricochet of Leninopad and the second wave of desovietization of Lithuanian public space

The article analyses the influence of the desovietization of Ukrainian public space (known as Leninopad), which started in 2014 as part of the ʻsecond wave’ of the dismantling of Soviet monuments in Lithuania. Two well-known cases that have sparked the most debate among experts and the public are discussed in detail: the removal of the socialist-realist sculptures from the Green Bridge in Vilnius in 2015, and the removal of a monument to the writer Petras Cvirka in 2021. The conclusion is that in the post-Soviet and post-socialist region, in response to Russia’s increasingly aggressive foreign policy, shifts in the politics of history have become a pretext not only for attempts to cleanse public spaces of the remnants of the Soviet symbolic landscape, but also for solving local political problems, or for the need for decommunization as a pretext for the economic development of vacant urban areas.

Panoraminis Vilniaus planas (1581) ir jo sekiniai LMA Vrublevskių bibliotekoje / Panoramic Plan of Vilnius (1581) and its Derivatives in the Wroblewski Library of the Lithuanian Academy of Sciences

The renowned panoramic plan of Vilnius, Vilna Litvaniae metropolis, was for the first time printed in Cologne in 1581. It appeared in the third volume of Civitates orbis terrarum, an atlas of the world’s most important cities, the publication of which was initiated in 1572 by Georg Braun (1541–1622), Cologne church dean, geographer and publisher, and Franz Hogenberg (1535–1590), Flemish cartographer and engraver. The six-volume atlas was first released in Latin (1572–1617/1618), then in German (1574–1618), and finally in French (1579–1618). City images featured in this very popular atlas also were published as separate prints. The copper plates for these images were sold by Hogenberg’s heirs to the Amsterdam atlas publisher Johannes Janssonius (1588–1664), who published his own atlas in 1657. Later purchased by other cartographic publishers of Amsterdam, the plates kept being republished until completely worn out in the mid-18th century. The panoramic plan from this atlas is the earliest image of Vilnius that has reached us today. It features mid-16th-century Vilnius shown as if from a bird’s eye view – such was the tradition of depicting cities at that time. Researchers agree that this Vilnius image is not historically accurate and contains numerous errors. The creators of the plan are believed to have based their city image on an earlier work, probably by Italian cartographers, adding to it various travellers’ depictions of the then capital of the Grand Duchy. The Rare Books Department of the Wroblewski Library of the Lithuanian Academy of Sciences holds three copies of Vilna Litvaniae metropolis. They were all printed in the times of Braun and Hodenberg using the same copper plates. The earliest of them is the copy with the second part of the text in German. According to the bibliography Koeman’s Atlantes Neerlandici, it may have been printed in 1582. Previously, this copy was in possession of Petras Klimas (1891–1969), Lithuanian statesman and bibliophile. It was received by the library currently known as the Wroblewski Library of the Lithuanian Academy of Sciences together with Petras Klimas’ archive (F 191) from the former Kaunas State University in 1950. The other two copies have no provenance marks. They presumably used to belong to the Wroblewski State Library, which was active in Vilnius in the interwar period. The second copy was published between 1588 and 1593; the third, between 1616 and 1623, both have Latin text. The Wroblewski Library of the Lithuanian Academy of Sciences holds several later derivatives of this panoramic plan of Vilnius. A several-times-reduced (16×24) panoramic plan was engraved by Georg Christoph Kilian (1709–1781) circa 1740 and published by the Bodenehrs, Augsburg engravers and publishers. A lithographic image of Vilnius in an even smaller format (17.5×13.5) was included in the history of Vilnius published by Józef Ignacy Kraszewski (1812–1887) in 1840. It was created in Vilnius at the lithographic firm of Józef Ozębłowski (Oziębłowski, 1805–1878), which existed in 1833–1863. Three other plans of Vilnius deriving from the Vilnius image in the Braun-Hogenberg atlas were lithographed in the late 19th – early 20th century. One of them was redrawn at a smallish lithographic company belonging to the Vilnius City Board and active from 1877 to approximately 1915. Unlike the other derivatives, it contains not only objects copied from earlier Vilnius city images, but also new ones: the Rasos Cemetery, the Green Bridge, the Franciscan monastery, etc. – its creators attempted to bring it closer to their time. The two other Vilnius images are identical to the plan in the Braun-Hogenberg atlas. One of them was printed in Vilnius at the lithographic firm of Notel Matz, which existed from 1873 to 1938, the other, at A.Transhel’s printing house in St. Petersburg, which was active in the second half of the 19th century – the early 20th century. These plans were lithographed in the late 19th – early 20th century. They have so far been little studied and still await attention from researchers. Keywords: Braun-Hogenberg atlas; panoramic plan; Vilnius; copper engravings; lithography; Georg Bodenehr; Vilnius City Board lithography; Notel Matz; A.Transhel’s printing company.

Irrigation can create new green bridges that promote rapid intercontinental spread of the wheat stem rust pathogen

Wheat stem rust epidemics caused by the obligate pathogenic fungus Puccinia graminis f.sp. tritici have historically driven severe yield losses on all wheat growing continents and, after many decades of control, stem rust is re-emerging as a disease of concern. In 1998, a highly virulent race able to overcome 90% of world wheat cultivars, Ug99, was identified in Uganda. Since initial detection, the pathogen has evolved many new variants and spread to many countries. The original variant spread from East Africa to the Middle East with three years between detection in Ethiopia and subsequent detection in Yemen. In 2014, another Ug99 variant (TTKTT), with one of the most complex virulence profiles, was detected in Kenya. This variant also spread from East Africa to the Middle East, but with only one year between detection in Ethiopia and subsequent detection in Iraq. Here we investigate potential airborne migration routes to account for the rapid spread of TTKTT in East Africa and beyond to the Middle East by using an integrated model combining the outputs from a meteorology-driven fungal spore dispersion model with epidemiological models to account for seasonal availability of susceptible crops and conditions for spore release and infectivity. We find viable pathways in the 2018/19 season that incorporate critical stepping-stone locations in Yemen or Saudi Arabia, but only in the presence of newly irrigated regions in Ethiopia. Our results indicate the potential and increasing importance of irrigated wheat areas in Ethiopia, Yemen and Saudi Arabia for inter-regional stem rust movements. Future movement of stem rust races out of East Africa is considered likely as irrigated areas expand. Targeted surveillance and the use of mitigation strategies including the use of durable resistant varieties in regions of irrigation are required to reduce the risks of enhanced dispersal of stem rust to other regions.

Wheat Curl Mite: A New Source of the Eriophyoid Mite in Wheat Fields Identified

Wheat curl mites (WCMs; Aceria tosichella) are an important global pest of cultivated wheat. Their feeding activities on epidermal cells of wheat leaves result in characteristic leaf curl symptoms that prevent the unfurling of affected leaves and impair the proper emergence of heads from the boot stage. The most significant economic impact of WCM infestation, however, is their ability to vector and transmit four important viruses of wheat, specifically, wheat streak mosaic virus, Triticum mosaic virus, High Plains wheat mosaic emaravirus, and brome streak mosaic virus. Being wingless, WCMs are almost completely dependent on air currents for their dispersal. In addition, because of their obligate lifestyle, wheat field infestations are thought to originate from sources such as volunteer wheat. Corn and other cultivated and noncultivated Poaceae hosts are also known to act as green bridges between successive wheat crops. Consequently, management practices mostly target these off-season host plants but also the use of resistant varieties and other cultural control methods. Here we report the discovery of seed-borne WCM eggs, a previously unknown method of their dispersal, as a possible source of new infestations in wheat fields. This discovery expands our understanding of the biology of WCMs, with potential implications for the development of more holistic and effective management strategies for this economic pest and virus vector. [Formula: see text] Copyright © 2022 The Author(s). This is an open access article distributed under the CC BY 4.0 International license .

Green bridge between waste and energy: conversion the rotten wood into cathode for functional Zn-air battery

Oxygen reduction reaction (ORR) is a cathode reaction for Zn-air battery (ZAB), however, it limits the large scale utilization of ZAB for its nature of a slow dynamic process. Therefore, it is of great practical significance to improve ORR performance when waste biomass materials are turned into cathode materials for ZAB. Herein, we report a simple and expandable green strategy, that can convert waste biomass materials (rotten wood (RW)) into N-doped carbon material (NRW-1000) with excellent ORR ability in a one-step process. In this strategy, NH4Cl is selected as activator and N source, thus realizing the biomass carbonization, activation and N doping process at the same time. The NRW-1000 prepared by this strategy was endowed with a half-wave of 0.87 V (vs. RHE), which is the same as Pt/C (0.87 V). To test the practicality of NRW-1000, different types of ZAB were assembled to power homemade electronics. Remarkably, the button ZAB based on NRW-1000 showed even more impressive energy density (58.52 mW cm−2) than that of the commercial PR 48 (Panasonic) (30.73 mW cm−2). Our work provides a solution to the current energy crisis by recycling waste into electrochemical catalysts.

Maize Lethal Necrosis: Impact and Disease Management

The authors summarise and explore maize lethal necrosis (MLN) global impact, its causal viruses, their vectors, and disease management strategies. MLN is a destructive synergistic virus disease of maize caused by maize chlorotic mottle virus (MCMV) in combination with one of several viruses in the Potyviridae family. MLN causes severe chlorosis, necrosis, and eventual plant death, instigating severe yield losses. The causal viruses of MLN are mostly transmitted between plants by arthropod vectors, but they can also be transmitted at low frequency through seed and soil. Effective MLN management approaches include developing and growing maize with improved tolerance, crop rotation, controlling arthropod vector populations, managing disease reservoirs, and reducing disease transmission and spread through seed and soil. Despite the devastating impact of MLN over the past decade, especially in East Africa, tremendous progress has been achieved towards successful disease management. The rapid development and deployment of MLN tolerant maize in East Africa has proven an extremely effective management strategy, despite continuous maize plantings and the extensive presence of "green bridges". Identifying and stacking additional sources of MLN tolerance is desirable for breeding durable resistance. In the U.S., weed and vector management combined with crop rotation has effectively prevented the spread of MLN beyond a few states in the Midwest. However, it is important to consider the potential impact of climate change and the presence of pesticide/Bt resistant MLN insect vectors, which may facilitate greater vector proliferation and virus spread. Continued vigilance geared towards preventing virus or vector introduction to new locations is desirable, especially in tropical climates where multiple growing seasons occur annually. Fortunately, conditions conducive to an MLN epidemic are complex, requiring the presence of multiple maize infecting viruses and their respective vectors. Thus, several combinations of the disease management strategies discussed above are effective at managing the disease.

Cabbage‐centre grub (Hellula hydralis Guenée) (Lepidoptera: Pyralidae): a new pest challenge to long‐season canola grown for forage and grain in southern Australia

AbstractCanola crops grown across southern Australia are subject to damage from more than 40 invertebrate species. Shifts within this invertebrate pest complex have evolved due to changing management practices. The latest change is the sowing of winter canola cultivars in the proceeding spring (September–November), grazing during late summer to early winter (February–June) and then ‘locking up’ for grain harvest in December/January. Complementary to this practice is the sowing of longer‐season spring cultivars in early autumn, also for grazing. Do long‐growing‐season crops create green bridges for insects and diseases? In the autumn of 2016, significant damage to forage canola caused by Hellula hydralis Guenée, 1854 was reported. The widespread occurrence of H. hydralis moths across south‐east Australia is expected due to it migrating on southerly airflows from where it is a pest in subtropical vegetable crops. Previously, H. hydralis had been considered as an occasional pest in forage turnips grown over the summer–autumn period. However, the occurrence of multiple larval instars in winter canola for a prolonged period in late summer and early autumn of 2016 across the high‐rainfall zones of south‐east Australia causing substantial loss of dry matter has not been reported previously. Little is known about this native species, but international literature exists for related pest species. The likely factors and implications of the unusually high occurrence of H. hydralis in forage canola are discussed. Pest report data indicate that H. hydralis continues to cause damage, suggesting that the growing of long‐season forage canola is providing another, more suitable, over‐summer breeding ground in southern Australia for this native species. Long‐term research on crop and non‐crop hosts is necessary to understand, hence manage, H. hydralis as a pest of canola.

Green bridge crops to manage corn nitrogen nutrition in the Southeastern Argentinean Pampas

An ecological intensification of agriculture through the use of green bridge crops (GBC) between cash crops is a way to improve resource use efficiency. This study aimed to assess vetch (Vicia villosa Roth.) (Ve), oat (Avena sativa L.) (Oa), Oa+Ve as GBC, and a control without GBC, with different termination dates (early and late), tillage systems (conventional tillage and no-tillage), and nitrogen (N)-fertilization to corn (Zea mays L.) (NF: 0 and 120 kg N ha−1) on soil N availability, and corn N uptake and yield. Three field experiments were carried out at the Southeastern Argentinean Pampas in 2012–2013, 2013–2014, and 2014–2015 on an Argiudoll. Corn and GBC aboveground dry matter and N accumulation and corn grain yield were determined. Soil nitrate-N at corn planting and V6 and anaerobically mineralizable N (AN) at corn planting were also determined. Water availability at corn planting was not limiting, whereas along corn cycle differed among years. The GBC terminated late accumulated more dry matter and N than those terminated early and Ve and Oa+Ve more N than Oa. Both early termination date and Ve tended to show higher nitrate-N at planting and at V6 stage. In general, NF improved corn behavior but response was different among GBC, being lower after Ve and Oa+Ve, and with late termination date. A simple model was fitted to predict corn relative yield based on nitrate-N at V6 stage, AN, GBC dry matter accumulation and C:N ratio. The model fitted allowed predicting relative corn grain yield and could be used as a tool to help N fertilization recommendation.

Integrated Framework for Proper Constructability in Bridges Using Value Engineering and Analytical Network Process 'ANP" (Analytical Study)

Due to recent environmental and Political requirements, and regulations of the construction industry, in which bridges is one of its important category, deciding its proper constructability is becoming vital. Therefor the objective of this research is to develop a decision model for selecting proper constructability of green bridges constructions, the model was built based on analytical network process (the ANP) soft were program, integrated with value engineering approach. For this analytical study different parameters are identified and ranked to be implemented for the decision model developed on the biases of four surveying studies conducted in this study the results of these surveying's was be analyzed by using the statically analytical program; "SPSS". Model validation and reliability is carried out using the analytical network process (ANP) for statistically analysis using case study which is a cable bridge project constructed in Egypt. ANP proves to be an effective framework for assessing readiness to adopt and facilitating TQM. The result of the study illustrate that the proper constructability alternative in green bridge concept for this determinate project is the concrete box girder type, upon this there is a cost loss of $3, 500 per square meter, equivalent to 50% losses, respect to the life cycle cost this is due to did not using the best alternate of the estimated project. upon the possibility of applying this decision model to such studies of infrastructure projects, and with respect to the results gained; it is recommend to apply the ANP model with respect to VE procedures to bridges projects of all kinds and their determinants, as well as all other construction projects, especially national ones, in future studies, which allows decision- makers to make decisions that aim at the highest quality without any waste in unnecessary costs.

Effect of starvation and feeding on desiccated cover crops (Urochloa spp.), in different time periods, on the survival and biomass of Spodoptera frugiperda

In tropical agroecosystems, cover crops are an alternative toward a more diverse and sustainable production. Urochloa spp. (syn. Brachiaria spp.) are perennial grasses that are commonly used as cover crops in the no-tillage crop systems. Their residues after desiccation protect the soil and provide nutrient to the next crop cycle. However, these plants can act as a green bridge to fall armyworm (FAW) during the winter season. When summer crops are sown, late instar larvae destroy the seedlings. Therefore, one of the main issues in the management of cover crops is when to perform desiccation before the main crop sowing to avoid FAW larvae survival on the straw. In this context, we investigated the survival of S. frugiperda larvae under different starvation time periods, and assessed their survival and biomass on U. ruziziensis (Ur) and U. brizantha (Ub) desiccated over different time periods. Our results showed that FAW larvae developed into pupae only when corn was offered for twelve days and during the total larval phase. However, larvae fed for eight days survived approximately 13 days. Larval survival decreased on Ub and Ur with increasing infestation time after desiccation. However, survival was higher on Ur. Also, larval biomass was lower on Ub at 7, 14 and 21 days after desiccation. The results obtained may have direct implications for FAW management.