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Bases para o controle microbiano de formigas cortadeiras

Authors: Travaglini, Raphael Vacchi;

Bases para o controle microbiano de formigas cortadeiras

Abstract

O controle biológico tem recebido atenção dos pesquisadores, principalmente devido aos movimentos, de preservação do ambiente. Têm sido amplamente aplicado em espécies consideradas importantes pragas agrícolas, porém não indicado para as formigas cortadeiras. Tais formigas apresentam um conjunto de estratégias físicas, químicas e comportamentais que as operárias realizam a fim de evitar a própria contaminação e da colônia. Entretanto alguns microorganismos conseguem causar mortalidade de alguns membros da colônia, como os fungos entomopatogênicos. Pretende-se fornecer conhecimentos básicos para desenvolvimento de novas estratégias de controle microbiano das formigas cortadeiras em um futuro próximo. Para tanto estudamos quatro fungos com grande potencial patogênico, Metarhizium anisopliae, Beauveria bassiana, Aspergillus flavus e Trichoderma asperellus. Primeiramente foram estudados a patogenicidade dos fungos (entomopatogeno e oportunista) em operarias isoladas da colônia. Estudou-se a susceptibilidade de larvas e adultos de formigas cortadeiras Atta sexdens rubropilosa a conídios de B. bassiana, por meio de técnicas histológicas e de microscopia. Finalmente encapsulados com conídios foram veiculados para o jardim de fungo simbionte visando o controle de mini colônias em laboratório. Propomos a elaboração de novas alternativas aos manejos existentes.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

Country
Brazil
Keywords

Fungos entomopatogênicos. Antagonista. Colônia. Imaturos., Fungos entomopatogênicos. Antagonista. Colônia. Imaturos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green