Population growth curve of Spodoptera frugiperda in maize in Irapuato, Guanajuato, Mexico

 

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Detalles Bibliográficos
Autores: Martínez Jaime, Oscar Alejandro, Salas Araiza, Manuel Darío, Díaz García, José Antonio
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2018
Descripción:The fall armyworm Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) is an important pest of maize (Zea mays L.) in Irapuato, Guanajuato, Mexico. The objective of the study was to obtain the population growth curve (and its estimation) of the adults of S. frugiperda in the maize crop in Irapuato, Guanajuato, Mexico. Applying the multiple regression technique, the functional form of a third-degree polynomial was obtained, in terms of temperature and precipitation, using the monthly averages available from 1993 to 2002. The estimated equation was: Y = 821.347 – 104.728T + 2.737P + 3.448T2 – 0.019P2 – 0.180TP + 0.001TP2 (1), where T was the average monthly mean temperature, P was the average monthly accumulated precipitation, and Y was the average of adults of S. frugiperda per month. In addition, using standard mathematical programming techniques, the critical temperature and the critical precipitation were calculated (T=13.70 °C, P=38.70 mm) obtaining the average of maximum number of individuals of this specie per month, which was 39 adults. The prediction model (1) provided information to reach deep understanding of the fluctuation of this species population, and contributed, therefore, to make the integrated pest management in maize crop more efficient, in the region of “El Bajío” of Guanajuato.
País:Portal de Revistas UCR
Institución:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Lenguaje:Español
OAI Identifier:oai:portal.ucr.ac.cr:article/27126
Acceso en línea:https://revistas.ucr.ac.cr/index.php/agromeso/article/view/27126
Access Level:acceso abierto
Palabra clave:simulation models
phenology
weather
population dynamics
phytophagous.
modelos de simulación
fenología
clima
dinámica de poblaciones
fitófagos.