Advanced search
Start date

Modeling with game theory of behavioral / adaptive strategies of Spodoptera frugiperda and Helicoverpa armigera in Bt crops with spatio-temporal co-occurrence

Grant number: 18/20435-5
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): April 01, 2019
Effective date (End): March 31, 2022
Field of knowledge:Agronomical Sciences - Agronomy - Plant Health
Principal researcher:Cláudia Pio Ferreira
Grantee:José Bruno Malaquias
Home Institution: Instituto de Biociências (IBB). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil
Associated research grant:14/16609-7 - A multi - and interdisciplinary approach to understand spatio-temporal patterns of insect pests and design landscapes for sustainable pest management in tropical agricultural systems, AP.TEM


Co-occurrence of cotton, maize and soybean in spatio-temporal dimensions (called cross-contamination) may be important for maintenance of multiple polyphagous pests during crop time or postharvest. In these conditions, information focused on movement strategies and competition between immatures is scarce. Understanding when, how, where and why insects move in the larval stage as way for exploitation and survival in different patches is an important question in studies emphasizing evolutionary dynamics of pre-adapted individual to genetically modified technologies. Taking into account the possibility of interspecific and intraspecific competition, involving Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) and Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) the mathematical structure of game theory may be useful to describe the decision-making dilemma between dispersal or stay in the plant. This mathematical approach will also be useful to evaluate the consequences of competitive behavior for maintenance and propagation of allele(s) conferring resistance to transgenic technology for both pest species. In this sense, we intend to analyze how the simultaneous occurrence of cotton, maize and soybean plants expressing or not genes of Bacillus thurigiensis (Bt) (Berliner), affect the larval movement dynamics and competition of S. frugiperda and H. armigera. Subsequently, we intend to simulate these ecological interactions with game theory in order to understand how the interactions influence the dynamics of local adaptation in scenarios with pure and cross contamination. With association to the Thematic Project (Process: 14/16609-7), this proposal aims to serve as a basis to guide strategies of resistance management to make possible proactive action of agronomic practices with the objective of delaying in isolation or simultaneously the resistance evolution in relevant pest species.

News published in Agência FAPESP Newsletter about the scholarship:
Articles published in other media outlets (0 total):
More itemsLess items

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MIOTELO, LUCAS; MENDES DOS REIS, ANA LUIZA; MALAQUIAS, JOSE BRUNO; MALASPINA, OSMAR; ROAT, THAISA CRISTINA. Apis mellifera and Melipona scutellaris exhibit differential sensitivity to thiamethoxam. Environmental Pollution, v. 268, n. A JAN 1 2021. Web of Science Citations: 0.
PACHU, JESSICA K. S.; MACEDO, FRANCYNES C. O.; DA SILVA, FABIA B.; MALAQUIAS, JOSE B.; RAMALHO, FRANCISCO S.; OLIVEIRA, RICARDO F.; GODOY, WESLEY A. C. Imidacloprid-mediated stress on non-Bt and Bt cotton, aphid and ladybug interaction: Approaches based on insect behaviour, fluorescence, dark respiration and plant electrophysiology. Chemosphere, v. 263, JAN 2021. Web of Science Citations: 0.
JACOB, CYNTHIA R. O.; MALAQUIAS, JOSE B.; ZANARDI, ODIMAR Z.; SILVA, CARINA A. S.; JACOB, JESSICA F. O.; YAMAMOTO, PEDRO T. Oral acute toxicity and impact of neonicotinoids on Apis mellifera L. and Scaptotrigona postica Latreille (Hymenoptera: Apidae). ECOTOXICOLOGY, v. 28, n. 7, p. 744-753, SEP 2019. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: