Spatiotemporal analysis of distribution of pest and predator in corn crops
Arq. Inst. Biol
; 88: e00332020, 2021. ilus, tab, graf
Article
in En
| LILACS, VETINDEX
| ID: biblio-1348966
Responsible library:
BR1942.1
ABSTRACT
Crop pests have negative impacts on yield. This paper proposes a spatiotemporal geostatistical modeling to compare data of adult Syrphidae fly count and corn leaf aphid Rhopalosiphum maidis (Fitch, 1856) colonies in corn crops. The use of a geostatistical model that allows the space-time variation makes the approach more interesting because it is a more complete model. Multiple regression was used to model the trend component for the variable response adult Syrphidae fly count and corn leaf aphid colonies, with the coordinates serving as covariates and the spatiotemporal variations around the deviation are described by a random spacetime residual field. Finally, the prediction map obtained by kriging may be a biological indicator of possible corn leaf aphid colonies in the corn crop. It was possible to verify that the occurrence of the pest provided a significant increase in adult predators and seminatural habitats may favor populations of natural enemies.
Key words
Full text:
1
Index:
LILACS
Main subject:
Models, Statistical
/
Zea mays
/
Diptera
Type of study:
Prognostic_studies
/
Risk_factors_studies
Language:
En
Journal:
Arq. Inst. Biol
Journal subject:
BIOLOGIA
/
MEDICINA VETERINARIA
/
SAUDE PUBLICA
Year:
2021
Type:
Article