Nyasani, Johnson O.; Subramanian, Sevgan; Poehling, Hans-Michael; Maniania, Nguya K.; Ekesi, Sunday; Meyhofer, Rainer: Optimizing Western Flower Thrips Management on French Beans by Combined Use of Beneficials and Imidacloprid. In: Insects 6 (2015), Nr. 1, S. 279-296. DOI: http://dx.doi.org/10.3390/insects6010279
Zusammenfassung: | |
Western flower thrips (WFT), Frankliniella occidentalis (Pergande), is an important pest of vegetable crops worldwide and has developed resistance to many insecticides. The predatory mites Neoseiulus (=Amblyseius) cucumeris (Oudemans), the entomopathogenic fungus Metarhizium anisopliae (Metsch.), and an insecticide (imidacloprid) were tested for their efficacy to reduce WFT population density and damage to French bean (Phaseolus vulgaris L.) pods under field conditions in two planting periods. Metarhizium anisopliae was applied as a foliar spray weekly at a rate of one litre spray volume per plot while imidacloprid was applied as a soil drench every two weeks at a rate of two litres of a mixture of water and imidacloprid per m(2). Neoseiulus cucumeris was released every two weeks on plant foliage at a rate of three mites per plant. Single and combined treatment applications reduced WFT population density by at least three times and WFT damage to French bean pods by at least 1.7 times compared with untreated plots. The benefit-cost ratios in management of WFT were profitable with highest returns realized on imidacloprid treated plots. The results indicate that M. anisopliae, N. cucumeris, and imidacloprid have the potential for use in developing an integrated pest management program against WFT on French beans. | |
Lizenzbestimmungen: | CC BY 4.0 Unported |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2015 |
Die Publikation erscheint in Sammlung(en): | Naturwissenschaftliche Fakultät |
Pos. | Land | Downloads | ||
---|---|---|---|---|
Anzahl | Proz. | |||
1 | Germany | 144 | 73,10% | |
2 | United States | 20 | 10,15% | |
3 | China | 12 | 6,09% | |
4 | Iran, Islamic Republic of | 3 | 1,52% | |
5 | No geo information available | 2 | 1,02% | |
6 | Netherlands | 2 | 1,02% | |
7 | Kenya | 2 | 1,02% | |
8 | Czech Republic | 2 | 1,02% | |
9 | Taiwan | 1 | 0,51% | |
10 | Togo | 1 | 0,51% | |
andere | 8 | 4,06% |
Hinweis
Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.