Natural enemies in alternative plants during the soybean and corn offseason in Cruz Alta, Rio Grande do Sul
| Autor: | Aline Hesel, Daniel Rapachi Barassuol, Eduardo Engel, Mauricio Paulo Batistella Pasini, Daniele Caroline Hörz, Claudio Ariel Chassot |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Integrated pest management
education.field_of_study biology Population Biological pest control Glycine max Zea mays biological control ecology population dynamics biology.organism_classification lcsh:S1-972 Population density Ecologia de Insetos Harmonia axyridis Crop Agronomy lcsh:Agriculture (General) Lebia glycine max zea mays education Agronomy and Crop Science Lycosa |
| Zdroj: | Acta Scientiarum. Agronomy; Vol 42 (2020): Publicação contínua; e42479 Acta Scientiarum. Agronomy; v. 42 (2020): Publicação contínua; e42479 Acta Scientiarum. Agronomy Universidade Estadual de Maringá (UEM) instacron:UEM Acta Scientiarum: Agronomy, Vol 42, Pp e42479-e42479 (2019) |
| ISSN: | 1807-8621 1679-9275 |
| DOI: | 10.4025/actasciagron.v42i1.42479 |
| Popis: | Identifying the behavior of natural enemies during the crop offseason is a key tool for integrated pest management. The objective of this work was to evaluate the population density of natural enemies of the plants Chloris distichophylla, Andropogon bicornis, and Erianthus angustifolium and to analyze the influence of the structural complexity of these plants on the present population. During the offseasons of 2014, 2015, and 2016, 150 plants of each species were evaluated and subdivided into different clump diameters. The species Lycosa spp., Eriops connexa, Cicloneda sanguinea, Coleomegilla quadrifasciata, Lebia concinna, and Harmonia axyridis were identified. A. bicornis was the plant with the highest population density, followed by C. distichophylla and E. angustifolium. Plants with greater structural complexities sheltered a higher population density of natural enemies. |
| Databáze: | OpenAIRE |
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