Article
Biochemistry & Molecular Biology
Sarah E. McComic, Leslie C. Rault, Troy D. Anderson, Daniel R. Swale
Summary: This study aimed to evaluate the sensitivity of central neurons and susceptibility of fall armyworm (FAW) to chloride channel modulators to inspire the development of novel insecticides. The study found that fipronil and lindane were the most toxic modulators, with Z-stilbene also showing toxicity. However, the low toxicity of some stilbene isomers dampened enthusiasm for their development into FAW specific insecticides.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2021)
Article
Plant Sciences
Golam Jalal Ahammed, Yaxian Wu, Yameng Wang, Tianmeng Guo, Rubya Shamsy, Xin Li
Summary: Catechins, particularly EGCG, are important secondary metabolites found in tea plants. The synthesis of catechins is affected by various environmental stresses, and their accumulation is closely related to plant stress tolerance. Additionally, exogenous catechin application has been shown to enhance various aspects of plant growth and development under perturbed conditions. However, high concentrations of catechins can be phytotoxic. This article reviews the biological functions of catechins, particularly EGCG, in plants and discusses their roles in plant adaptation to variable environments as well as their effects on plant growth and adaptation in other plant species. Overall, catechins play a critical role in plant environmental adaptability and immune response, and their properties can be utilized to enhance crop production in an environmentally friendly manner.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Agronomy
Camila Oliveira, Silvana M. Orozco-Restrepo, Antonio C. L. Alves, Braullio S. Pinto, Morgana S. Miranda, Marcio H. P. Barbosa, Marcelo C. Picanco, Eliseu J. G. Pereira
Summary: The study found that the use of diamide or carbamate + neonicotinoid seed treatments can effectively kill FAW larvae on maize whorls or stalks in favorable edaphoclimatic and insecticide-susceptibility conditions. The cumulative impacts of systemic IST on aboveground insect pests go beyond mortality.
PEST MANAGEMENT SCIENCE
(2022)
Article
Agricultural Engineering
Saba Samadi, Mohammad Jamal Saharkhiz, Majid Azizi, Leila Samiei, Akbar Karami, Mansour Ghorbanpour
Summary: The study found that SWCNTs affect the morphological, physiological, and biochemical properties of Thyme callus culture, activating antioxidant molecules and related enzymes, promoting the accumulation of pharmacologically active compounds, and enhancing growth and yield of the callus.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Entomology
Sarah E. McComic, Kumudini M. Meepagala, Daniel R. Swale
Summary: This study tested the insecticidal properties of 13 synthetic chromene analogs on fall armyworm and found that certain compounds displayed toxicity and altered developmental trajectories of the insects. The results suggest potential for these compounds as novel growth regulators for fall armyworm.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2021)
Article
Agronomy
Yizhou Chen, Duong T. Nguyen, Helen Spafford, Grant A. Herron
Summary: We developed a multi-amplicon panel by next-generation sequencing (multiamplicon-seq) to identify known insecticide resistance mutations in Australian FAW with high throughput and low cost. Australian FAW carried a very high proportion of the F290V mutation in the acetylcholinesterase (AChE) gene that causes resistance to organophosphate and carbamate insecticides. Furthermore, FAW has a GABA-activated chloride channel mutation, A301Q in the RDL gene. The sequencing-based platform provided evidence of a duplication in the AChE gene. Several single nucleotide polymorphisms (SNPs) within the 476-bp amplicon of the AChE gene demonstrated 100% heterozygosity across samples and some individuals carried two haplotypes with the F290V mutation.
PEST MANAGEMENT SCIENCE
(2023)
Article
Entomology
Sudeeptha Yainna, Nicolas Negre, Pierre J. Silvie, Thierry Brevault, Wee Tek Tay, Karl Gordon, Emmanuelle dAlencon, Thomas Walsh, Kiwoong Nam
Summary: This study investigated the resistance of fall armyworm populations to Bt and synthetic insecticides in different geographic areas, finding that resistance mutations were more widespread in invasive populations, resulting in susceptibility to Bt insecticides and resistance to synthetic insecticides in Chinese populations. This highlights the importance of monitoring insecticide resistance in invasive populations using genomic approaches and bioassay experiments.
Article
Entomology
Albert F. Abang, Samuel N. Nanga, Rosa M. O. Esi Ndanda, Armand R. Doumtsop Fotio, Mary K. Gonder, Christian Kouebou, Christopher Suh, A. Fotso Kuate, Komi K. K. M. Fiaboe, Rachid Hanna, Joseph Munyaneza
Summary: Control of fall armyworm in Africa still relies on pesticides, with early detection of adult moths considered crucial for effective larval control. However, established control thresholds based on current monitoring techniques are lacking. This study examined the efficacy of moth capture frequencies and fall armyworm incidence levels as decision tools for management. The results suggest that these factors can be useful for guiding control interventions, but further investigation is needed to establish a threshold for damage that leads to yield loss.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2022)
Article
Multidisciplinary Sciences
Amy J. Withers, Jolanda de Boer, Gilson Chipabika, Lei Zhang, Judith A. Smith, Christopher M. Jones, Kenneth Wilson
Summary: Understanding the population structure and movements of the invasive fall armyworm is crucial for mitigating crop damage and identifying areas at risk of outbreaks or insecticide resistance. Genetic markers like COIB, Tpi, and microsatellites have revealed limited genetic diversity but some evidence of genetic structuring in FAW populations across Africa, suggesting that genetic mixing between invasive FAW populations may be more common than previously reported.
SCIENTIFIC REPORTS
(2021)
Article
Entomology
Julien M. Beuzelin, Donna J. Larsen, Erik L. Roldan, Eric Schwan Resende
Summary: The susceptibility of fall armyworm populations to chlorantraniliprole in sweet corn fields in southern Florida between 2017 and 2019 varied to a small extent, with approximately fourfold differences in LC50 and LC90 values. These field populations showed reduced susceptibility compared to a reference laboratory population. However, field experiments demonstrated that foliar applications of chlorantraniliprole effectively reduced injury and infestations by fall armyworm in sweet corn fields, comparable to or lower than other insecticides. Therefore, there is currently no evidence of practical resistance to chlorantraniliprole in fall armyworm infesting Florida sweet corn fields.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2022)
Review
Plant Sciences
Panchsheela Nogia, Pratap Kumar Pati
Summary: The study focuses on the important roles of secondary metabolites (SMs) in plant growth, defense, development, and survival, as well as explores the transport mechanisms of SMs and the potential of engineering transporters to enhance metabolite production.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Entomology
Johnnie Van den Berg, Michael J. Brewer, Dominic D. Reisig
Summary: The Special Collection provides insights into the ecology and management of the fall armyworm outside of the Americas. The articles cover a wide range of topics, including pest behavior, resistance, biological control, and host plant resistance, contributing to a better understanding of this invasive pest.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2022)
Article
Agronomy
Moses Chanda, Hugo De Groote, Lawrence Kinoti, Astridah Munsaka, Elias Kuntashula, Anani Y. Bruce, Chewe Nkonde
Summary: The study evaluated the control technology of fall armyworm using seed-coating with Fortenza Duo, showing positive effects in reducing infestation and damage by the pest. However, the results were not conclusive due to the lack of proper control in the demonstrations.
Article
Biology
Valentin Gfeller, Jan Waelchli, Stephanie Pfister, Gabriel Deslandes-Herold, Fabio Mascher, Gaetan Glauser, Yvo Aeby, Adrien Mestrot, Christelle A. M. Robert, Klaus Schlaeppi, Matthias Erb
Summary: Plant secondary metabolites released into the rhizosphere impact soil properties, affecting the performance and productivity of other plants. In this study, winter wheat varieties showed improved growth and yield when grown in soils conditioned by maize plants producing benzoxazinoids. This finding suggests that optimizing root exudation chemistry can enhance crop yields without additional inputs.
Review
Agronomy
Arzlan Abbas, Farman Ullah, Muhammad Hafeez, Xiao Han, Muhammad Zulqar Nain Dara, Hina Gul, Chen Ri Zhao
Summary: This comprehensive review summarizes the methods and practical significance of biological control in effectively managing fall armyworm (FAW) at different stages.
Article
Forestry
Vinicius Evangelista Silva, Thiago Assis Rodrigues Nogueira, Cassio Hamilton Abreu-Junior, Arun Dilipkumar Jani, Salatier Buzetti, Marcelo Carvalho Minhoto Teixeira Filho, Zhenli He, Antonio Ganga, Tamires Mousslech Andrade Penido, Anderson Rodrigo da Silva, Gian Franco Capra
Summary: This study evaluated the vertical and spatial soil physical-chemical properties along the root-explored profile of Eucalyptus plantations in Brazil, revealing typical soil horizonation in clayey Oxisols with spatial pedovariability. The presence of porthole shapes in deeper horizons indicated underestimates of vertical and spatial pedovariability in standard soil investigations. Eucalyptus roots were found to strongly affect most soil properties, highlighting the importance of considering both vertical and spatial dimensions in soil management for infertile Eucalyptus plantations.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Entomology
Fernanda Correa, Cinthia Luzia Teixeira Silva, Warley Marcos Nascimento, Andre Cirilo de Sousa Almeida, Flavio Goncalves de Jesus
Summary: Different chickpea genotypes exhibit varying levels of antibiosis to Spodoptera frugiperda, with some genotypes showing resistance to the pest. These resistant genotypes could be utilized in integrated pest management programs and breeding programs for insect resistance.
BULLETIN OF ENTOMOLOGICAL RESEARCH
(2022)
Article
Soil Science
Renato P. de Lima, Mario M. Rolim, Matheus P. S. Toledo, Cassio A. Tormena, Anderson R. da Silva, Ivis Andrei C. e Silva, Elvira M. R. Pedrosa
Summary: The study examined the impact of soil texture and degree of compactness on total porosity and distribution of macro-, meso- and micropores. It found that total porosity and macroporosity are dependent on compactness and silt plus clay content, while meso- and micropores are mainly affected by particle size distribution. The findings suggest that increasing compactness may reduce total porosity and macroporosity, with meso- and micropores being more sensitive to changes in particle size distribution.
SOIL & TILLAGE RESEARCH
(2022)
Article
Plant Sciences
Cassio Jardim Tavares, Walter Quadros Ribeiro Junior, Maria Lucrecia Gerosa Ramos, Lucas Felisberto Pereira, Raphael Augusto das Chagas Noqueli Casari, Andre Ferreira Pereira, Carlos Antonio Ferreira de Sousa, Anderson Rodrigo da Silva, Sebastiao Pedro da Silva Neto, Liliane Marcia Mertz-Henning
Summary: This study evaluated the morphophysiological changes, yield, and grain quality of soybean under water stress in the Brazilian Cerrado. The results showed that different cultivars had varying responses to water stress, with BRS 7280 RR exhibiting higher drought tolerance and water use efficiency.
Article
Soil Science
Renato P. de Lima, Anderson R. da Silva
Summary: Water content is crucial in soil physical processes, and the relationship between water content and matric potential is key to understanding these processes. Multiple parametric models are available to describe this relationship, but fitting these models may not be straightforward. The soilphysics package in R provides functionalities to fit and compare different water retention curve models, aiding users in understanding experimental data.
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
(2022)
Article
Agronomy
Anderson Rodrigo Da Silva, Itamar Jose Tavares Filho, Flavio Goncalves de Jesus, Andre Cirilo de Sousa Almeida
Summary: This study evaluated the effect of fertirrigation with vinasse on the spatiotemporal distribution of Mahanarva fimbriolata and on the sampling effort for monitoring. The study found that the adults and nymphs of M. fimbriolata showed an aggregated pattern, and the infestation rate was higher in the non-fertirrigated area.
Article
Agronomy
Celio Borella Junior, Fernanda Correa, Anderson Rodrigo da Silva, Ana Paula Silva Siqueira, Warley Marcos Nascimento, Andre Cirilo de Sousa Almeida, Flavio Goncalves de Jesus
Summary: This study evaluated the resistance of six chickpea cultivars to the tobacco budworm. Jamu 96 and BRS Aleppo showed higher levels of resistance and can be used in integrated pest management programs to control the tobacco budworm.
ACTA SCIENTIARUM-AGRONOMY
(2022)
Article
Agronomy
Carlito Marcal dos Santos Junior, Mariana Santos da Silva, Pedro Valasco dos Santos, Rodrigo de Almeida Rocha, Marco Antonio Moreira de Freitas, Anderson Rodrigo da Silva
Summary: This study aimed to model the seed soaking curves of maize seeds under the influence of concentrations of s-metolachlor + atrazine and investigate their effects on soaking kinetics and primary root emission. The results showed that the herbicide concentration significantly affected the absorption rate and primary root emission, with a concentration above 20% fully inhibiting seed germination.
INTERNATIONAL AGROPHYSICS
(2022)
Article
Ecology
Ana Paula Pelosi, Franciele Cristina da Silva, Adriana G. Vaz, Andre Cirilo S. Almeida, Anderson Rodrigo da Silva, Michael J. Stout, Flavio G. de Jesus, Jose Alexandre F. Barrigossi
Summary: The addition of silicon improves plant resistance against insect pests and reduces damage caused by rice stem borers. The study found that silicon treatment negatively impacted the development of Diatraea saccharalis and resulted in less damage to rice plants.
ARTHROPOD-PLANT INTERACTIONS
(2022)
Article
Biology
Ana Paula Pelosi, Franciele Cristina da Silva, Adriana G. G. Vaz, Andre Cirilo de S. Almeida, Anderson Rodrigo da Silva, Flavio G. de Jesus, Jose Alexandre de F. Barrigossi
Summary: Rice is an important crop that feeds a large population. The sugarcane borer is a pest that affects rice production in the Americas. This study identified tolerant rice genotypes and observed changes in agronomic and physiological attributes in response to sugarcane borer damage. The tolerant genotypes could be used in integrated pest management strategies.
