Efficacy of insect nets for cabbage production and pest management depending on the net removal frequency and microclimate
| Autor: | Thibaud Martin, L. Adjaïto, H.K. Coffi, Mathieu Ngouajio, Serge Simon, Armel Clément Goudjo Mensah, F. Assogba Komlan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Integrated pest management
Mediterranean climate Efficacité d'utilisation Identification Microclimate Méthode de lutte Aphididae Netting Écran de protection Aphid Lutte antiravageur biology Lutte anti-insecte Crop yield Pesticide biology.organism_classification H10 - Ravageurs des plantes Climat subtropical Lepidoptera Climat méditerranéen Agronomy Insect Science Microclimat Brassica oleracea Agronomy and Crop Science |
| Zdroj: | International Journal of Pest Management |
| Popis: | In Africa, synthetic pesticide applications are overly frequent and above labelled rates. We assessed the efficacy of an insect net physical control system on field cabbage (Brassica oleracea var. capitata) production in France and Benin. Various mesh sizes and netting removal frequencies were compared under contrasting climatic conditions. Studies under Mediterranean climatic conditions (spring season) compared two mesh sizes (0.73 mm and 1.6 mm). Studies under subequatorial climatic conditions (cool and hot seasons) tested nets of mesh size 0.4 mm and 0.9 mm used either as permanent cover, removed daily, or 3 days per week. The results showed that a fine mesh did not improve the netting efficacy against pests but had a major impact on the microclimate. In Mediterranean climatic conditions, the netting efficacy and beneficial microclimate improved crop yields. In subequatorial conditions, crop yields were lowest with permanent net protection due to high temperatures under the nets and poor aphid and Spodoptera littoralis control. Removing the nets 3 days per week was a good technical/economic trade-off, ensuring acceptable efficacy with minimal effects on the microclimate. |
| Databáze: | OpenAIRE |
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