Effects of granulated baits on meso and macrofauna in soybean soil system

Studies were done to see the effects of five toxic baits based on metaldehyde and/or carbaryl on the taxonomic composition of soil meso and macrofauna, and determined the density of beneficial organisms in soybean under no tillage. Six treatments were tested and soil monoliths were taken before appl...

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Bibliographic Details
Published in:Journal of environmental biology 2011-11, Vol.32 (6), p.793-793
Main Authors: Salvio, C, Lopez, A N, Manetti, P L, Clemente, N L
Format: Article
Language:English
Subjects:
Acetaldehyde - analogs & derivatives
Acetaldehyde - pharmacology
Animals
Annelida
Baits
Carbaryl
Carbaryl - pharmacology
Enchytraeidae
Environmental Monitoring
Environmental science
Glycine max
Insecticides - pharmacology
Invertebrates - drug effects
Macrofauna
Molluscacides - pharmacology
Nematoda
Oligochaeta
Soil
Soils
Soybeans
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Summary:Studies were done to see the effects of five toxic baits based on metaldehyde and/or carbaryl on the taxonomic composition of soil meso and macrofauna, and determined the density of beneficial organisms in soybean under no tillage. Six treatments were tested and soil monoliths were taken before application and at 45 and 75 days after application (DAA). Before application, 1601 individuals were recorded, belonging 1086 to mesofauna and 515 to macrofauna. In soil mesofauna such as Annelida: Enchytraeidae (44%), Nematoda (33%) and Arthropoda (23%) were found. In the macrofauna Arthropoda 93% and Annelida: Oligochaeta, Megadrilli 7% were observed. No differences were observed among the treatments (p>0.05) in the total mesofauna density, at 45 and 75 DAA. The density of enchytraeids, mites, collembolans and symphylids showed no differences at45 and 75 DAA (p > 0.05). The total macrofauna density showed differences (p < 0.05) at 45 and 75 DAA. The highest density was obtained with 4 kg ha(-1) MataBibos Acay at 45 and 75 DAA. Earthworm and diplopod densities at45 and 75 DAA showed no differences (p>0.05). The diversity of meso and macrofauna was not affected at 45 and 75 DAA. Bait application did not affect either the abundance or the diversity of soil beneficial invertebrates.
ISSN:0254-8704
2394-0379