Results 41 to 50 of about 2,736 (207)

Topical toxicity of four active ingredients on Atta sexdens workers

open access: yesResearch, Society and Development, 2022
Leaf-cutting ants are economically important pest insects in the Neotropical region. They forage on fresh leaves and flowers that serve as substrates for the cultivation of their mutualistic fungus, which they feed upon. The main active ingredient for their control is sulfluramid, but the restriction of its use is under discussion.
Marcílio de Souza Barbosa   +2 more
openaire   +1 more source

Determinação do fator de conversão em colônias de Atta sexdens rubropilosa (Hymenoptera: Formicidae) e sua relação com a qualidade do material vegetal cortado Determination of the conversion factor in colonies of Atta sexdens rubropilosa (Hymenoptera: Formicidae) and its relationship with the quality of harvested leaf substrate

open access: yesRevista Árvore, 2007
As formigas cortadeiras (Atta e Acromyrmex) são consideradas importantes pragas na agricultura e silvicultura, mas pouco se sabe sobre os reais danos dessas espécies.
Leandro Sousa-Sou   +4 more
doaj   +1 more source

Bacterial microbiomes from vertically-transmitted fungal inocula of the leaf-cutting ant Atta texana [PDF]

open access: yes, 2016
Microbiome surveys provide clues for the functional roles of symbiotic microbial communities and their hosts. In this study, we elucidated bacterial microbiomes associated with the vertically transmitted fungal inocula (pellets) used by foundress queens ...
Bacci, Maurício, Jr.   +7 more
core   +1 more source

Atratividade de Atta sexdens rubropilosa por plantas de eucalipto atacadas previamente ou não por Thyrinteina arnobia Atta sexdens rubropilosa attractiveness to eucalyptus plants previously attacked or not by Thyrinteina arnobia

open access: yesPesquisa Agropecuária Brasileira, 2004
O sistema de defesa induzido das plantas é ativado após a ocorrência do dano provocado por um herbívoro. O objetivo deste trabalho foi avaliar se plantas de eucalipto (Eucalyptus grandis) atacadas previamente por lagartas de Thyrinteina arnobia tornam-se
Hamilton Gomes de Oliveira   +3 more
doaj   +1 more source

Histopathological effects of cypermethrin and Bacillus thuringiensis var. israelensis on midgut of Chironomus calligraphus larvae (Diptera: Chironomidae) [PDF]

open access: yes, 2018
Pesticides are extensively used for the control of agricultural pests and disease vectors, but they also affect non-target organisms. Cypermethrin (CYP) is a synthetic pyrethroid used worldwide. Otherwise, bioinsecticides like Bacillus thuringiensis var.
Arrighetti, Florencia   +2 more
core   +1 more source

TOXICITY OF Esenbeckia pumila Pohl (Rutaceae) ON Artemia salina AND Atta sexdens rubropilosa

open access: yesRevista Caatinga, 2019
The number of studies on plant compounds with insecticidal activity has increased in recent years, and one of the primary targets of these compounds is leaf-cutter ants, which are considered the most important pests in Brazilian plantations, especially ...
Geane Karla Gonçalves Ferreira Duarte   +5 more
doaj   +1 more source

First record of the occurrence and abundance of phorids (Diptera: Phoridae) associated with leaf-cutting ants of the genus Atta (Hymenoptera: Formicidae) in the municipality of Cruz das Almas-BA

open access: yesSociobiology, 2020
As formigas cortadeiras do gênero Atta são consideradas uma das principais pragas florestais e agrícolas. Atualmente, o controle químico com iscas granuladas é considerado o mais eficiente, porém, com a adoção inadequada de manejo pode prejudicar ...
Tamires Doroteo Souza   +1 more
doaj   +1 more source

Insetos em presépios e as "formigas vestidas" de Jules Martin (1832-1906): uma curiosa manufatura paulistana do final do século XIX [PDF]

open access: yes, 2008
Encontrados no Brasil desde os primórdios da colonização portuguesa, os presépios logo tiveram de adaptar-se à realidade local, circunstância muito propícia ao aparecimento de concepções heterodoxas e ao emprego de elementos exóticos da fauna e flora de ...
ANÔNIMO   +61 more
core   +4 more sources

EFICIÊNCIA DE ISCAS GRANULADAS À BASE DE SULFLURAMIDA E DE CLORPIRIFÓS NO CONTROLE DE Atta sexdens sexdens(HYMENOPTERA: FORMICIDAE), NO TRÓPICO ÚMIDO. [PDF]

open access: yesActa Amazonica, 1996
Este trabalho foi realizado em plantios de eucalipto urograndis (Eucalyptus urophylla χ Eucalyptus grandis)da Jari Celulose S.A., no município de Almeirim, Pará, no período de agosto/94 a janeiro/95.
Adalton Pinheiro da CRUZ   +3 more
doaj   +1 more source

Pathogenicity of filamentous fungi towards Atta sexdens rubropilosa (Hymenoptera: Formicidae)

open access: yesInternational Journal of Tropical Insect Science, 2021
In the Neotropics, leaf-cutting ants are pests of great importance to various crops. The natural defenses and complexity of these ants reduce the impact of potentially useful pathogens for biological control. Furthermore, several types of research with entomopathogenic fungi usually focus on only a few isolates of well-known species, like Beauveria ...
Sandra Regina Sousa Cardoso   +3 more
openaire   +2 more sources

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