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REIS,TATIANE C.; SOARES,MARCUS A.; SANTOS,JOSÉ B. DOS; SANTOS,CONCEIÇÃO A. DOS; SERRÃO,JOSE EDUARDO; ZANUNCIO,JOSÉ C.; FERREIRA,EVANDER A.. |
Abstract Herbicides can impact non-target metabolic pathways in natural enemies and lead to the reduction of these populations in the field. Behavioral characteristics, morphology and histology of reproductive structures and reproduction of females of Podisus nigrispinus (Dallas) (Hemiptera: Pentatomidae) were evaluated under the effect of the herbicides atrazine, nicosulfuron and the mixture of both. The number of mature oocytes per ovary was lower in females exposed to the herbicides atrazine, nicosulfuron and the mixture of both. Herbicides did not affect the longevity and mortality of P. nigrispinus, therefore, they are selective for this predator. On the other hand, herbicides can cause sublethal effects by affecting the reproduction of predators. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavior; Histology; Morphology; Reproduction; Herbicides. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703625 |
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ANÉSIO,ARNON H.C.; SANTOS,MÁRCIA V.; SILVEIRA,RAUL R.; FERREIRA,EVANDER A.; SANTOS,JOSÉ B. DOS; SILVA,LEANDRO D. DA. |
ABSTRACT The aim of this work was to determine the persistence of auxinic herbicides applied on tropical pasture and toxicity for succeeding crops. The herbicides were applied in an area of dystrophic red‒yellow latosol with pasture infested of weeds. At 40, 80, and 280 days after application of herbicide, the soil samples were collected at depths of 0 to 20 cm. Soil with residues of 2,4-D, 2,4-D + picloram, triclopyr, and a soil without herbicide application were analyzed with six replicates. Seven crops were cultivated in these soils: cucumber (Cucumis sativus L.), velvet bean [Mucuna pruriens (L.) DC.], pigeon pea [Cajanus cajan (L.) Millsp.], alfalfa (Medicago sativa L.), lablab bean [Lablab purpureus (L.) Sweet], corn (Zea mays L.), and sorghum... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth regulator herbicide residue 2; 4-D picloram triclopyr. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401717 |
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