Toxicity and sublethal effects of insecticides to Helicoverpa armigera (Hübner) and Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)

• Grant number: 18/00045-8
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: November 01, 2018
• End date: March 31, 2020
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Sergio Antonio de Bortoli
• Grantee: Caio Cesar Truzi
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is a cosmopolitan insect that is widely distributed in the American continent, which is highly adaptable and feeds on different crops. Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) is an important pest of agricultural crops worldwide, presenting characteristics such as polyphagia, facultative diapause, great dispersal capacity, adaptation in several environments, and high reproductive potential. The Integrated Pest Management (IPM) programs for control of H. armigera and S. frugiperda have some tactics, such as the use of chemical insecticides, biological insecticides based on bacteria and viruses, and transgenic plants. Natural insecticides extracted from plants may also contain substances to be incorporated in the management of these pests, but one of the limitations of the use of extracts is the phytotoxicity that can be caused to the plant in which it is applied. The residual period, lethal doses, the acute and chronic effects of chemical and biological insecticides, and the activity of plant extracts on these lepidopteran pests and on host plants are not yet widely known. Thus, the objective of this research will be to investigate the residual period in soybean and corn, the lethal concentrations and sublethal effects of chemical (flubendiamida), biological insecticides (baculovirus VPN-HzSNPV and VPN-SfMNPV, Bacillus thuringiensis subsp. aizawai) and extract (Lippia sidoides) to H. armigera and S. frugiperda, in addition to evaluating the phytotoxicity of the extract in soybean and corn plants. (AU)

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)

NUNES, G. S.; RAMALHO, D. G.; DOS SANTOS, N. A.; TRUZI, C. C.; VIEIRA, N. F.; CARDOSO, C. P.; DE BORTOLI, S. A.. Parasitism-Mediated Interactions Between the Ring-Legged Earwig and Sugarcane Borer Larvae. Neotropical Entomology, v. 48, n. 6, NOV 2019. (18/00045-8)

TRUZI, CAIO CESAR; VIEIRA, NATALIA FERNANDA; DE SOUZA, JOICE MENDONCA; DE BORTOLI, SERGIO ANTONIO. Artificial Diets With Different Protein Levels for Rearing Spodoptera frugiperda (Lepidoptera: Noctuidae). JOURNAL OF INSECT SCIENCE, v. 21, n. 4, JUL 7 2021. (18/00045-8)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

TRUZI, Caio Cesar. Helicoverpa armigera e Spodoptera frugiperda (Lepidoptera: Noctuidae): Dieta artificial, produtos para controle e efeitos em polinizadores. 2020. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.