Results 31 to 40 of about 3,585 (181)

Noncanonical Nucleotides in the Genome Around the Maternal‐Zygotic Transition

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In this paper, Kazzazi et al. provide a comprehensive review of the dynamics of nonconventional nucleotides in the genome during early developmental stages, hypothesizing a potential role for these nucleotides in the activation of the zygotic genome. ABSTRACT From the very moment of fertilization and throughout development, the cells of animal embryos ...
Latifa Kazzazy, Dávid Mező, Kinga K. Nagy, Viktória Perey‐Simon, Judit Tóth, Angéla Békési, Beáta Vértessy, Máté Varga   +7 more
wiley   +1 more source

Topic: Smallholder Farmers' Adaptation Practices to the Effects of Land Degradation on Livelihoods in Semi‐Arid Ghana

Land Degradation &Development, EarlyView.
ABSTRACT Although several environmental challenges exist globally, land degradation is the greatest threat and risk factor wedging human livelihoods. Despite widespread awareness of climate change, little empirical evidence exists on land degradation and its impacts on livelihoods in semi‐arid agroecological systems.
Philip Aniah, Raymond Agyepong Antwi, Miriam Afi Kosi, Makemie Jumanne Mabula   +3 more
wiley   +1 more source

Managing pests by increasing predators through late termination of cover crops

Pest Management Science, EarlyView.
Adding cover crops to crop rotations can improve the sustainability and ecosystem functioning of agroecosystems. By delaying cover‐crop termination, growers can effectively increase natural enemy populations and reduce the need for chemical controls. Abstract BACKGROUND Adding cover crops to crop rotations can improve the sustainability and ecosystem ...
Jared S Adam, John M Wallace, John F Tooker   +2 more
wiley   +1 more source

Forest fragments' contribution to the natural biological control of Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Maize

Brazilian Archives of Biology and Technology, 2011
The present work evaluated the influence of forest distance on predatory solitary wasps' abundance and richness and its relation to the natural biological control of the fall armyworm (Spodoptera frugiperda Smith - Lepidoptera: Noctuidae) in maize.
Eduardo Henrique Santana Sousa, Michela Costa Batista Matos, Ruanno Silva Almeida, Adenir Vieira Teodoro   +3 more
doaj   +1 more source

A fractional-order fall armyworm-maize biomass model with naturally beneficial insects and optimal farming awareness

Results in Applied Mathematics, 2021
Maize remains an important food crop in Africa. However, the production of this crop, and consequently the livelihood of the growers are threatened by the invasion and widespread infestation of the fall armyworm which causes substantial maize yield ...
Salamida Daudi, Livingstone Luboobi, Moatlhodi Kgosimore, Dmitry Kuznetsov   +3 more
doaj   +1 more source

Mapping the global threat of Mythimna separata (Walker) and its economic implications for Brazil's agriculture

Pest Management Science, EarlyView.
Global models identified high‐risk areas for Mythimna separata invasion, highlighting major economic vulnerability for Brazilian crops and guiding targeted prevention and management strategies. Abstract BACKGROUND Identifying high‐risk areas for the introduction of invasive alien species is particularly important for agricultural pests with a broad ...
Gabriel Dorotel da Silva Ferreira, Cesar Augusto Marchioro   +1 more
wiley   +1 more source

Perceptions, challenges and determinants of management strategy choices for combating fall armyworm (Spodoptera frugiperda) infestation in Ghana

Pest Management Science, EarlyView.
Despite high awareness of fall armyworm, a significant gap remains in the use of sustainable and effective control measures. Farmers predominantly perceive synthetic pesticides as ideal despite studies highlighting botanical and traditional methods as more sustainable.
Richard Adabah, Robert Aidoo, Bright Owusu Asante, Amos Mensah, Seth Etuah, Gifty Boakye Appiah, Jonas Osei‐Adu   +6 more
wiley   +1 more source

Genetic characterization of fall armyworm (Spodoptera frugiperda) in Ecuador and comparisons with regional populations identify likely migratory relationships.

PLoS ONE, 2019
Fall armyworm, Spodoptera frugiperda (J. E. Smith), is an important agricultural pest native to the Americas that has recently been introduced into the Eastern Hemisphere where it has spread rapidly through most of Africa and much of Asia.
Rodney N Nagoshi, Benjamin Y Nagoshi, Ernesto Cañarte, Bernardo Navarrete, Ramón Solórzano, Sandra Garcés-Carrera   +5 more
doaj   +1 more source

Effect of Surfactants on Beet Armyworm and Fall Armyworm Larvae, 1994 [PDF]

Arthropod Management Tests, 1995
Abstract Six commercially-available surfactants/ wetting agents were compared to determine their toxic effects on beet armyworm and fall armyworm larvae. Larvae used in this study were obtained from the USDA-ARS Insect Biology and Population Management Research Lab in Tifton, GA, and were 4-days-old on the day of treatment.
openaire   +1 more source

Intra‐Seasonal Crop Management and the Potential Benefit of Seasonal Precipitation Forecasts: Farm‐Level Embedded Risk Analysis in Ethiopia

Journal of Agricultural Economics, EarlyView.
ABSTRACT How large is the potential benefit for farmers from obtaining forecasts of total rainfall in the upcoming season? This critically depends on the local farm system and the crop management actions available to farmers to respond to the forecasts issued. Studies assessing the financial value of seasonal precipitation forecasts have so far focused
Christian Troost, Samuel Elias Kayamo, Livia Rasche, Thomas Berger   +3 more
wiley   +1 more source