Effect of Weed Management on the Parasitoid Community in Mediterranean Vineyards
| Autor: | Keasar Tamar, Möller Daniella, Segoli Michal, Ferrante Marco, Möller Gabriella, Shapira Idan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
conservation biological control non-crop vegetation Biology natural enemies 010603 evolutionary biology 01 natural sciences Vineyard General Biochemistry Genetics and Molecular Biology Article vineyards Abundance (ecology) Community Composition Weed Management community composition Cover crop lcsh:QH301-705.5 Natural Enemies General Immunology and Microbiology Parasitoids Vegetation Weed control Vineyards parasitoids 010602 entomology Agronomy lcsh:Biology (General) Non-crop Vegetation Conservation Biological Control Species richness General Agricultural and Biological Sciences Soil conservation Weed weed management |
| Zdroj: | Biology Volume 10 Issue 1 Biology, Vol 10, Iss 7, p 7 (2021) Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 2079-7737 |
| Popis: | Enriching agroecosystems with non-crop vegetation is a popular strategy for conservation biocontrol. In vineyards, the effects of specific seeded or planted cover crops on natural enemies are well-studied, whereas conserving spontaneously developing weeds received less attention. We compared parasitoid communities between matched pairs of vineyard plots in northern Israel, differing in weed management practices: &ldquo herbicide&rdquo repeated herbicide applications vs. &ldquo ground cover&rdquo maintaining resident weeds and trimming them when needed. Using suction sampling, we assessed the parasitoids&rsquo abundance, richness, and composition during three grape-growing seasons. Ground cover plots had greater parasitoid abundances and cumulative species richness than herbicide-treated plots, possibly because of their higher vegetation cover and richness. Dominant parasitoid species varied in their magnitude and direction of response to weed management. Their responses seem to combine tracking of host distributions with attraction to additional vegetation-provided resources. Parasitoid community composition was mildly yet significantly influenced by weed management, while season, year, and habitat (weeds vs. vine) had stronger effects. Vineyard weeds thus support local biocontrol agents and provide additional previously demonstrated benefits (e.g., soil conservation, lower agrochemical exposure) but might also attract some crop pests. When the benefits outweigh this risk, weed conservation seems a promising step towards more sustainable agricultural management. |
| Databáze: | OpenAIRE |
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