The Response of Insects and Weeds within the Crop to Variation in Sowing Density of Canola
The relationships between weeds and insects in canola stands with different seeding rates are not fully understood. Varying seeding rates in canola crops can create different conditions that affect both weed and insect populations and their interactions. The aim of this work was to determine the res...
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2024-09-01
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| author | Lucie Vykydalová Petra Martínez Barroso Igor Děkanovský Eva Hrudová Yentriani Rumeta Lumbantobing Markéta Michutová Jan Winkler |
| author_facet | Lucie Vykydalová Petra Martínez Barroso Igor Děkanovský Eva Hrudová Yentriani Rumeta Lumbantobing Markéta Michutová Jan Winkler |
| author_sort | Lucie Vykydalová |
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| description | The relationships between weeds and insects in canola stands with different seeding rates are not fully understood. Varying seeding rates in canola crops can create different conditions that affect both weed and insect populations and their interactions. The aim of this work was to determine the response of weeds and insects of selected taxa to different densities of canola stand densities and to clarify the interactions between weeds and insects in canola stands. The field experiment was conducted on a plot located in the cadastral area of the municipality of Pěnčín (Moravia, Czech Republic). The results show that a reduced canola sowing rate of oilseed rape leads to increased weed infestation, which is dominated by one taxon (<i>Papaver rhoeas</i> L.). The increase in weed infestation of canola stands is not reflected in an increase in the diversity of captured insects. Increased canola seeding rate improves weed suppression but increases the number of canola pest insects. A higher number of plants and more canola biomass increase the food supply and, thus, make the stand more attractive to canola pests. The taxon <i>Brassicogethes aeneus</i> dominated the pests species spectrum. Changing the seeding rate of canola results in a response in weed and insect populations. The standard recommended seeding rate is optimal in terms of competitive suppression of weeds and the occurrence of pests and trapped insects. Increasing or decreasing the seeding rate of rapeseed does not bring any benefits in terms of pest regulation or biodiversity. However, the results obtained indicate an interesting weed–insect interaction in the conditions of canola stands. |
| format | Article |
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| language | English |
| publishDate | 2024-09-01 |
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| spelling | doaj-art-5e2aa85cb9bd4cdcbf5fa337ad7eda632025-08-20T01:55:37ZengMDPI AGLand2073-445X2024-09-01139150910.3390/land13091509The Response of Insects and Weeds within the Crop to Variation in Sowing Density of CanolaLucie Vykydalová0Petra Martínez Barroso1Igor Děkanovský2Eva Hrudová3Yentriani Rumeta Lumbantobing4Markéta Michutová5Jan Winkler6Department of Plant Biology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicDepartment of Applied and Landscape Ecology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicUniversity Hospital Brno, Jihlavská 20, 625 00 Brno, Czech RepublicDepartment of Crop Science, Breeding and Plant Medicine, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicInstitute of Civil Engineering, Warsaw University of Life Sciences—SGGW, Nowoursynowska 159, 02 776 Warsaw, PolandDepartment of Crop Science, Breeding and Plant Medicine, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicDepartment of Plant Biology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicThe relationships between weeds and insects in canola stands with different seeding rates are not fully understood. Varying seeding rates in canola crops can create different conditions that affect both weed and insect populations and their interactions. The aim of this work was to determine the response of weeds and insects of selected taxa to different densities of canola stand densities and to clarify the interactions between weeds and insects in canola stands. The field experiment was conducted on a plot located in the cadastral area of the municipality of Pěnčín (Moravia, Czech Republic). The results show that a reduced canola sowing rate of oilseed rape leads to increased weed infestation, which is dominated by one taxon (<i>Papaver rhoeas</i> L.). The increase in weed infestation of canola stands is not reflected in an increase in the diversity of captured insects. Increased canola seeding rate improves weed suppression but increases the number of canola pest insects. A higher number of plants and more canola biomass increase the food supply and, thus, make the stand more attractive to canola pests. The taxon <i>Brassicogethes aeneus</i> dominated the pests species spectrum. Changing the seeding rate of canola results in a response in weed and insect populations. The standard recommended seeding rate is optimal in terms of competitive suppression of weeds and the occurrence of pests and trapped insects. Increasing or decreasing the seeding rate of rapeseed does not bring any benefits in terms of pest regulation or biodiversity. However, the results obtained indicate an interesting weed–insect interaction in the conditions of canola stands.https://www.mdpi.com/2073-445X/13/9/1509<i>Brassica napus Napus Group</i>kompeticecompetitionweed vegetationinsectsorganism interactions |
| spellingShingle | Lucie Vykydalová Petra Martínez Barroso Igor Děkanovský Eva Hrudová Yentriani Rumeta Lumbantobing Markéta Michutová Jan Winkler The Response of Insects and Weeds within the Crop to Variation in Sowing Density of Canola Land <i>Brassica napus Napus Group</i> kompetice competition weed vegetation insects organism interactions |
| title | The Response of Insects and Weeds within the Crop to Variation in Sowing Density of Canola |
| title_full | The Response of Insects and Weeds within the Crop to Variation in Sowing Density of Canola |
| title_fullStr | The Response of Insects and Weeds within the Crop to Variation in Sowing Density of Canola |
| title_full_unstemmed | The Response of Insects and Weeds within the Crop to Variation in Sowing Density of Canola |
| title_short | The Response of Insects and Weeds within the Crop to Variation in Sowing Density of Canola |
| title_sort | response of insects and weeds within the crop to variation in sowing density of canola |
| topic | <i>Brassica napus Napus Group</i> kompetice competition weed vegetation insects organism interactions |
| url | https://www.mdpi.com/2073-445X/13/9/1509 |
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