Data/hora: 21/06/2024 01:17:18

Biblioteca(s): | Embrapa Soja.
Data corrente: | 25/09/2000
Data da última atualização: | 09/03/2006
Autoria: | SUJII, E. R.; SOSA-GOMEZ, D.R.; CARVALHO, V. A. M. de; TIGANO, M. S.
Título: | Integrated system to simulate the impact of the fungus nomuraea rileyi on Brazilian anticarsia gemmatalis populations.
Ano de publicação: | 2000
Fonte/Imprenta: | In: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21., 2000, Foz do Iguassu. Abstracts... Londrina: Embrapa Soja, 2000.
Volume: | v.1
Páginas: | p.543.
Idioma: | Inglês
Conteúdo: | The fungus Nomuraea rileyi is known as an important biological agent of Anticarsia gemmatalis (Lepidoptera: Noctuidae), a key soybean pest in Brazil. N. rileyi can prevent A. gemmatalis populations from reaching economic threshold levels in soybean, and consequently avoid the use of chemical insecticide applications against this pest. Little is known about the evolution of this disease on A. gemmatalis population dynamics. An integrated system of mathematical models has been developed, using the software "STELLA version 5.0 research", to simulate the pest population dynamics and the progress of the disease caused by N. rileyi. The system integrates a model of N. rileyilA. gemmatalis interactions, developed in Florida, USA, and a Brazilian model for A. gemmatalis dynamics. The precision of the system has been improved by the introduction of data related to infection and conidiation of N. rileyi on A. gemmatalis at Brazilian conditions. The input of climatic conditions, host population and soybean variety is required for simulations. The system generantes a curve of A. gemmatalis caterpillars population based on the estimation of N. rileyi conidial density and infection rates. The generated data compared to the field data shows that the system developed can mimicry the N. rileyi/A.gemmatalis interactions. However, further studies on environmental factors affecting migration rates of the insect, N. rileyi conidiogenesis dynamics and conidial survivorship, are still needed to improve the precision of the model for the use on A. gemmatalis management.
Palavras-Chave: | Brasil; Dinamica da populacao; Manejo de praga; Pest insects.
Thesagro: | Controle Biológico; Inseto.
Thesaurus Nal: | biological control; Brazil; Insecta; pest management; population dynamics.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (17833-1) - UMT - PL - -- - RF 339 -  -  - DIS