46 resultados para enemy


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Pós-graduação em Agronomia (Proteção de Plantas) - FCA

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The interactions between the entomopathogenic fungus Beauveria bassiana (Balsamo-Crivelli) Vuillemin (Ascomycota: Hypocreales) and the aphid parasitoid Diaeretiella rapae McIntoch (Hymenoptera: Braconidae) were evaluated under laboratory conditions. Nymphs of Myzus persicae Sulzer (Hemiptera: Aphididae) were first exposed to parasitoid females for 24 h and then 0, 24, and 48 h afterwards sprayed with a solution of B. bassiana. Likewise, aphids were also sprayed with B. bassiana and then exposed to parasitoids at 0, 24, and 48 h afterwards. Parasitism rate varied from 13 to 66.5%, and were signi_cantly lower in treatments where the two agents were exposed within a 0-24 h time interval compared with the control (without B. bassiana). Parasitoid emergence was negatively affected in treatments with B. bassiana spraying and subsequent exposure to D. rapae. Decreases in longevity of adult females of the D. rapae F1 generation were observed in treatments with B. bassiana spraying. The application of these two biological control agents can be used in combination on the control of M. persicae, wherein this use requires effective time management to avoid antagonistic interactions.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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The implantation of military regimes in South America, from the mid-1960s, happened in the context of the Cold War. As a result, both the occurrence of military coups and the plans and actions for the national defense of the Southern Cone States occurred following the logic of that period and the concept of hemispheric defense preached by the United States, with priority in combating the so-called internal subversion. Thus, the need to combat the “internal enemy” has led these countries to participate in hemispheric mechanisms or create his own arrangements for coordination. The article starts from the conflict hypothesis used by the military governments in their military planning to analyze the actions carried out against leftist movements, including coordination between the governments of the Southern Cone. The understanding of the defense concepts against Soviet communism allows us to understand that the groups placed against the military governments were seen as a danger to the State and, in that “state of war”, the means justified the ends.

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Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)