| Influence of crop management practices on bean foliage arthropods. | |
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MedLine Citation:
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PMID: 20504384 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Crop management practices can affect the population of phytophagous pest species and beneficial arthropods with consequences for integrated pest management. In this study, we determined the effect of no-tillage and crop residue management on the arthropod community associated with the canopy of common beans (Phaseolus vulgaris L.). Abundance and species composition of herbivorous, detritivorous, predaceous and parasitoid arthropods were recorded during the growing seasons of 2003 and 2004 in Coimbra County, Minas Gerais State, Brazil. Arthropod diversity and guild composition were similar among crop management systems, but their abundance was higher under no-tillage relative to conventional cultivation and where residues from the preceding crop were maintained in the field. Thirty-four arthropod species were recorded, and those most representative of the impact of the crop management practices were Hypogastrura springtails, Empoasca kraemeri and Circulifer leafhoppers, and Solenopsis ants. The infestation levels of major insect-pests, especially leafhoppers (Hemiptera: Cicadellidae), was on average seven-fold lower under no-tillage with retention of crop residues relative to the conventional system with removal of residues, whereas the abundance of predatory ants (Hymenoptera: Formicidae) and springtails (Collembola: Hypogastruridae) were, respectively, about seven- and 15-fold higher in that treatment. Importantly, a significant trophic interaction among crop residues, detritivores, predators and herbivores was observed. Plots managed with no-tillage and retention of crop residues had the highest bean yield, while those with conventional cultivation and removal of the crop residues yielded significantly less beans. This research shows that cropping systems that include zero tillage and crop residue retention can reduce infestation by foliar insect-pests and increase abundance of predators and detritivores, thus having direct consequences for insect pest management. |
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Authors:
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J L Pereira; M C Picanço; E J G Pereira; A A Silva; A Jakelaitis; R R Pereira; V M Xavier |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-05-27 |
Journal Detail:
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Title: Bulletin of entomological research Volume: 100 ISSN: 1475-2670 ISO Abbreviation: Bull. Entomol. Res. Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-11-05 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2984715R Medline TA: Bull Entomol Res Country: England |
Other Details:
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Languages: eng Pagination: 679-88 Citation Subset: IM |
Affiliation:
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Departamento de Biologia Animal, Universidade Federal de Viçosa, MG, Viçosa, 36571-000, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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