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Enhancing diversity to overcome resistance evolution

Grant number: 18/21089-3
Support type:Regular Research Grants
Duration: May 01, 2019 - April 30, 2022
Field of knowledge:Agronomical Sciences - Agronomy - Plant Health
Cooperation agreement: BBSRC, UKRI ; Newton Fund, with FAPESP as a partner institution in Brazil
Principal researcher:Ricardo Antonio Polanczyk
Grantee:Ricardo Antonio Polanczyk
Principal researcher abroad: Luc Bussiere
Institution abroad: University of Stirling, Scotland
Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
Assoc. researchers: A Bradley Duthie ; Belinda Mary Knowles ; Leonardo Fernandes Fraceto ; Matthew C Tinsley ; Natália Corniani ; Nils Bunnefeld ; Renata de Lima ; Yelitza Coromoto Colmenarez
Associated scholarship(s):19/26967-1 - New approach to resistance evolution management (endorse), BP.PD
19/10324-4 - New approach to resistance evolution management (endorse), BP.PD


We propose a revolutionary approach to pest management that will enhance the sustainability of crop production. Insecticide resistance evolution occurs when a single control agent is applied over extensive areas, causing consistent selection for rare resistance genes. To prevent these selective sweeps, we investigate how multiple fungal biopesticide strains can be used heterogeneously across agricultural landscapes, so that selection for resistance varies spatially. We also exploit the fact that the optimum genotype to defend against one pathogen is often highly sensitive to the environment; by overlaying variation in pathogen strain with variation in crop type, we decrease the consistency of selection even further, and thereby prevent resistance evolution. (AU)

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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)
DE SOUZA, TAMIRES DOROTEO; FERNANDES, FABRICIO OLIVEIRA; SANCHES, ARIADNE COSTA; POLANCZYK, RICARDO ANTONIO. Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae). EGYPTIAN JOURNAL OF BIOLOGICAL PEST CONTROL, v. 30, n. 1 NOV 23 2020. Web of Science Citations: 0.

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