Results 51 to 60 of about 6,449 (219)

Fall Armyworm: Control with Insecticides

The Florida Entomologist, 1979
Control measures for fall armyworm, (FAW), Spodoptera frugiperda (J. E. Smith), vary with the crop and its stage of development. Generally, seedling plants sustain economic damage with fewer larvae/unit area than do more mature plants. Resistance to insecticides for control of the FAW has been demonstrated for carbaryl and trichlorfon, but not for ...
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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

Life-history and life-table parameters of fall armyworm (Spodoptera frugiperda) for maize (Zea mays) in tropical Indian condition

The Indian Journal of Agricultural Sciences, 2022
Fall armyworm (Spodoptera frugiperda (J. E. Smith)) is an invasive pest reported in 2018 from India which principally attacks maize during vegetative and reproductive stages.
P LAKSHMI SOUJANYA, J C SEKHAR, S B SUBY, A P PADMA KUMARI, S DIVYA, M LAVA KUMAR REDDY, S L JAT, SUJAY RAKSHIT   +7 more
doaj   +1 more source

Prospecting of popcorn hybrids for resistance to fall armyworm

Genetics and Molecular Research, 2014
The fall armyworm, Spodoptera frugiperda, is the pest that causes the greatest economic losses for both common corn and popcorn crops, and the use of resistant plant genotypes is an important tool for integrated pest management. The goal of the present study was to evaluate the damage caused by S.
N C S, Crubelati-Mulati, C A, Scapim, F A, Albuquerque, A T, Amaral Junior, M, Vivas, M A, Rodovalho   +5 more
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Iflaviruses in arthropods: when small is mighty

Insect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia, Hannah‐Isadora Huditz, Monique M. van Oers, Vera I.D. Ros   +3 more
wiley   +1 more source

Evidence that a major subpopulation of fall armyworm found in the Western Hemisphere is rare or absent in Africa, which may limit the range of crops at risk of infestation.

PLoS ONE, 2019
The introduction and establishment of fall armyworm (Spodoptera frugiperda) in Africa presents a major threat to agriculture in that continent and potentially to the entire Eastern Hemisphere.
Rodney N Nagoshi
doaj   +1 more source

Genetic basis of allochronic differentiation in the fall armyworm

BMC Evolutionary Biology, 2017
Very little is known on how changes in circadian rhythms evolve. The noctuid moth Spodoptera frugiperda (Lepidoptera: Noctuidae) consists of two strains that exhibit allochronic differentiation in their mating time, which acts as a premating isolation barrier between the strains.
Sabine Hänniger, Pascaline Dumas, Gerhard Schöfl, Steffi Gebauer-Jung, Heiko Vogel, Melanie Unbehend, David G. Heckel, Astrid T. Groot   +7 more
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Drivers of Mouse Plagues: Exceptional Rainfall Following Prolonged Drought Triggers Mouse Plagues in Southeastern Australia

Integrative Zoology, EarlyView.
This study identified a specific sequence of an extended drought followed by exceptional rainfall as a necessary precursor for mouse plagues in southeastern Australia. Long‐term rainfall anomalies interact with ecological processes to reset population dynamics, creating conditions that support rapid mouse population growth following periods of ...
Peter R. Brown
wiley   +1 more source

Development of PCR, LAMP and HRM‐Based Molecular Species Diagnostic Tools for Identifying Four Agricultural Pests in the Genus Helicoverpa (Lepidoptera: Noctuidae)

Journal of Applied Entomology, EarlyView.
ABSTRACT Within the subfamily Heliothinae, the genus Helicoverpa comprises several highly destructive agricultural pests, including H. armigera, H. assulta, H. punctigera and H. zea. These species cause significant global crop losses due to their wide host range, long‐distance migratory behaviour, and potential for interspecific hybridization.
Minseop Noh, Murtaza Khan, Minyoung Choi, Andreas Zwick, Juil Kim   +4 more
wiley   +1 more source