Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima
Agricultural activity in Roraima has been increasing in recent years, with rice, soybean and corn crops making up most of the state's annual crop areas. In this sense, knowledge about the composition of species associated to these crops, their population dynamics and management methods are scarce in...
| Autor principal: | Negrini, Marcelo |
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| Grau: | Tese |
| Idioma: | por |
| Publicado em: |
Universidade Federal de Roraima
2019
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http://repositorio.ufrr.br:8080/jspui/handle/prefix/207 |
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oai:repositorio.ufrr.br:prefix-207 |
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oai:repositorio.ufrr.br:prefix-2072023-07-12T15:27:04Z Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima Negrini, Marcelo Fidelis, Elisângela Gomes http://lattes.cnpq.br/8202938535574203 Schurt, Daniel Augusto http://lattes.cnpq.br/6986086365325708 Manejo integrado de pragas Flutuação populacional Culturas anuais Insetos pragas Inimigos naturais Integrated pest management Population fluctuation Annual crops Pest insects Natural enemies CNPQ::CIENCIAS BIOLOGICAS::BIOLOGIA GERAL Agricultural activity in Roraima has been increasing in recent years, with rice, soybean and corn crops making up most of the state's annual crop areas. In this sense, knowledge about the composition of species associated to these crops, their population dynamics and management methods are scarce in Roraima. The objective of this thesis was to evaluate the population dynamics of insects and mites pests and their natural enemies in irrigated rice, corn and soybean crops in Roraima, determine methods of management of Spodoptera frugiperda and map out the risk of establishment of the panicle rice mite, Steneotarsonemus spinki in Brazil. Insects and mites were sampled in areas of soybean, corn and rice farming. In addition, tests were performed with alternative methods of handling S. frugiperda with entomopathogenic fungi and essential oils. Using the MaxEnt, the risk of entry and establishment of S. spinki in rice crops was determined. In soybean the caterpillar pests are Chrysodeixis includens, Anticarsia gemmatalis, Helicoverpa sp. S. cosmioides and S. frugiperda, whereas in the cultivation of Bt maize we have S. frugiperda, S. albula, S. cosmioides and Helicoverpa zea. As natural enemies the parasitoids Glyptapanteles hebertii, Chalcididae, Winthemia sp. and Chetogena cf sp. and the entomopathogenic fungus Metarhizium sp. In the cultivation of irrigated rice the main pests were Argyria sp., Oebalus poecilus, Marasmia trapezalis, Panoquina sp., S. frugiperda, Tibraca limbativentris and Rupela albinella. Among the rice mites are the genera of predatory species Lasioseius spp. Neoseiulus spp. and Pseudoparasitus spp. Among the management methods for S. frugiperda no efficient bioprospecting fungal isolate was obtained, however the commercial fungus based on Beauveria bassiana provided 86.7% mortality rates at 107 conidia / mL and essential oils of Corymbia citriodora and Lippia microphylla were efficient in topical and volatile applications. According to the model generated in MaxEnt it was verified that there is a high risk of establishment of S. spinki in rice crops in Roraima to the producing regions of southern Brazil. Despite the incidence of pests, a number of natural enemies are observed in the studied areas, even with insecticide-intensive use. A atividade agrícola em Roraima vem aumentando nos últimos anos, sendo que as culturas do arroz, soja e milho compõem grande parte das áreas de cultivos anuais do estado. Nesse sentido, o conhecimento sobre a composição de espécies associadas a esses cultivos, sua dinâmica populacional e métodos de manejo são escassos em Roraima. Objetivou-se com essa tese avaliar a dinâmica populacional de insetos e ácaros pragas e seus inimigos naturais nas culturas do arroz irrigado, do milho e da soja em Roraima, determinar métodos de manejo de Spodoptera frugiperda e mapear o risco de estabelecimento do ácaro-da-panícula-do-arroz, Steneotarsonemus spinki no Brasil. Foram realizadas amostragens de insetos e ácaros em áreas de cultivo agrícola de soja, milho e arroz. Além disso, foram feitos testes com métodos alternativos de manejo de S. frugiperda com fungos entomopatogênicos e óleos essenciais. Empregando-se o MaxEnt foi determinado o risco de entrada e estabelecimento de S. spinki em cultivos de arroz. Na cultura da soja as lagartas pragas são Chrysodeixis includens, Anticarsia gemmatalis, Helicoverpa sp. S. cosmioides e S. frugiperda, enquanto no cultivo do milho Bt tem-se S. frugiperda, S. albula, S. cosmioides e Helicoverpa zea. Como inimigos naturais foram registrados os parasitoides Glyptapanteles hebertii, Chalcididae, Winthemia sp e Chetogena cf sp. e o fungo entomopatogênico Metarhizium sp. No cultivo do arroz irrigado as principais pragas foram Argyria sp., Oebalus poecilus, Marasmia trapezalis, Panoquina sp., S. frugiperda, Tibraca limbativentris e Rupela albinella. Entre os ácaros do arroz destacam-se os gêneros de espécies predadoras Lasioseius spp. Neoseiulus spp. e Pseudoparasitus spp. Entre os métodos de manejo para S. frugiperda não foi obtido nenhum isolado de fungos bioprospectado eficiente, contudo o fungo comercial a base de Beauveria bassiana proporcionou taxas de mortalidade de 86,7% em dosagens de 107 conídios/mL e os óleos essenciais de Corymbia citriodora e Lippia microphylla foram eficientes em aplicações tópicas e voláteis. De acordo com o modelo gerado no MaxEnt verificou-se que existe elevado risco de estabelecimento de S. spinki em cultivos de arroz em Roraima até as regiões produtoras do sul do Brasil. Apesar da incidência de pragas observa-se uma série de inimigos naturais nas áreas estudadas, mesmo com uso intensivo de inseticidas. 2019-11-22T15:14:42Z 2019-11-22T15:14:42Z 2019 Tese NEGRINI, Marcelo. Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima. 2019. 134f. Tese (Doutorado em Biodiversidade e Biotecnologia da Amazônia Legal) - Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazônia Legal, Universidade Federal de Roraima, Boa Vista, 2019. http://repositorio.ufrr.br:8080/jspui/handle/prefix/207 por Acesso Aberto Attribution-NonCommercial-ShareAlike 3.0 Brazil http://creativecommons.org/licenses/by-nc-sa/3.0/br/ Universidade Federal de Roraima Brasil PRPPG - Pro-Reitoria de Pesquisa e Pós-graduação PPG-BIONORTE - Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazônia Legal UFRR |
| institution |
Repositório Institucional - Universidade Federa de Roraima - UFRR |
| collection |
DSpace |
| language |
por |
| topic |
Manejo integrado de pragas Flutuação populacional Culturas anuais Insetos pragas Inimigos naturais Integrated pest management Population fluctuation Annual crops Pest insects Natural enemies CNPQ::CIENCIAS BIOLOGICAS::BIOLOGIA GERAL |
| spellingShingle |
Manejo integrado de pragas Flutuação populacional Culturas anuais Insetos pragas Inimigos naturais Integrated pest management Population fluctuation Annual crops Pest insects Natural enemies CNPQ::CIENCIAS BIOLOGICAS::BIOLOGIA GERAL Negrini, Marcelo Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima |
| topic_facet |
Manejo integrado de pragas Flutuação populacional Culturas anuais Insetos pragas Inimigos naturais Integrated pest management Population fluctuation Annual crops Pest insects Natural enemies CNPQ::CIENCIAS BIOLOGICAS::BIOLOGIA GERAL |
| description |
Agricultural activity in Roraima has been increasing in recent years, with rice, soybean and corn crops making up most of the state's annual crop areas. In this sense, knowledge about the composition of species associated to these crops, their population dynamics and management methods are scarce in Roraima. The objective of this thesis was to evaluate the population dynamics of insects and mites pests and their natural enemies in irrigated rice, corn and soybean crops in Roraima, determine methods of management of Spodoptera frugiperda and map out the risk of establishment of the panicle rice mite, Steneotarsonemus spinki in Brazil. Insects and mites were sampled in areas of soybean, corn and rice farming. In addition, tests were performed with alternative methods of handling S. frugiperda with entomopathogenic fungi and essential oils. Using the MaxEnt, the risk of entry and establishment of S. spinki in rice crops was determined. In soybean the caterpillar pests are Chrysodeixis includens, Anticarsia gemmatalis, Helicoverpa sp. S. cosmioides and S. frugiperda, whereas in the cultivation of Bt maize we have S. frugiperda, S. albula, S. cosmioides and Helicoverpa zea. As natural enemies the parasitoids Glyptapanteles hebertii, Chalcididae, Winthemia sp. and Chetogena cf sp. and the entomopathogenic fungus Metarhizium sp. In the cultivation of irrigated rice the main pests were Argyria sp., Oebalus poecilus, Marasmia trapezalis, Panoquina sp., S. frugiperda, Tibraca limbativentris and Rupela albinella. Among the rice mites are the genera of predatory species Lasioseius spp. Neoseiulus spp. and Pseudoparasitus spp. Among the management methods for S. frugiperda no efficient bioprospecting fungal isolate was obtained, however the commercial fungus based on Beauveria bassiana provided 86.7% mortality rates at 107 conidia / mL and essential oils of Corymbia citriodora and Lippia microphylla were efficient in topical and volatile applications. According to the model generated in MaxEnt it was verified that there is a high risk of establishment of S. spinki in rice crops in Roraima to the producing regions of southern Brazil. Despite the incidence of pests, a number of natural enemies are observed in the studied areas, even with insecticide-intensive use. |
| author_additional |
Fidelis, Elisângela Gomes |
| author_additionalStr |
Fidelis, Elisângela Gomes |
| format |
Tese |
| author |
Negrini, Marcelo |
| title |
Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima |
| title_short |
Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima |
| title_full |
Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima |
| title_fullStr |
Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima |
| title_full_unstemmed |
Dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de Roraima |
| title_sort |
dinâmica populacional e manejo de pragas nas culturas de arroz, milho e soja no cerrado de roraima |
| publisher |
Universidade Federal de Roraima |
| publishDate |
2019 |
| url |
http://repositorio.ufrr.br:8080/jspui/handle/prefix/207 |
| _version_ |
1787156575150931968 |
| score |
11.755432 |